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Opus BT - C3100 V2.2 Smart Battery Charger

 -  US PLUG  PURPLISH BLUE 126488801

Charge Discharge Test Refresh 4 Channels for Li-ion NiCd NiMh Batteries

Dispatch: Ships on Sep 20

Additional Purchase Deal: For any Item Total over 60.00, purchase 1 Special Promo Item for 1.99, Item Total over 100.00, purchase 1 Special Promo Item for 9.99, Discounts are automatically applied to your shopping cart before checkout. View Promo >>
$36.78 In stock
QTY: - +

EU PLUG UK PLUG US PLUG

PURPLISH BLUE

Size: Color:

to United States  Via Flat Rate Shipping

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$36.78

Total price:$111.1

You Save:$ 2.2

Final Price:$108.9

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    • Description
    • Product FAQ
    • Customer Reviews
    • Shipping & Payment
    • Wholesale Inquiry


    Main Features:
    NEW LED back light displays charging / discharging / quick test / circuit more clearly in the dark
    NEW refresh mode can show you batteries' capacity, letting you know real magnitude
    NEW added quick test mode to test the battery impedance
    Four working mode available at user's choice: Charge, Discharge, Test, Quick Test and Refresh
    ● 4 independent charging slots charge rechargeable batteries of different types and sizes and with different capacities at the same time
    ● Charging current can be selected to be 200mA, 300mA, 500mA, 700mA or 1000mA ( 1500mA and 2000mA can be applied when only slot 1 or 4 is selected ). Default discharging current is 500mA
    ● Integrates the minus delta voltage ( -ΔV ) for NiCd or NiMh batteries charging termination, and for Li-ion batteries charging to 4.2V with pre-selected constant current. ( 3.7V Li-FeO4 and 4.35V high voltage batteries charging mode can be selected through switch on board )
    ● Easy-to-read LCD with back light showing battery Voltage, Charge / Discharge Current, Charging Time, Battery Capacity, etc.
    ● Includes overheat detection to protect rechargeable batteries and charger itself from overheating
    ● Designed for AA ( LR6 ) and AAA ( LR3 )NiCd, NiMH or 3.7V Li-ion rechargeable batteries in size type of 18650, 14500, 16340, 10440, also compatible with 10340, 18650, 26650, 26500 ( printed on the package ) and 17670, 18490, 17500, 17335 ( printed on the product )
    ● Operating temperature: 0 - 40 deg.C
    ● Max charging capacity: up to 20000mAh
    ● Power adapter: DC 12V, 3.0A ( output ), 100 - 240V, 50 / 60Hz ( input )
    ● Please NOTE: batteries are not included

    Highlights:
    1. Voltage update rate is 30s instead of 60s.
    2. Charging voltage is regulated to 4.7V instead of 5.0V, thus loading on power adapter when batteries are flat is less. 5.0V charging voltage has problem in regulating the correct current level due to this over loading current on power adapter, which lead to Panasonic brand Li-ion batteries showed wrong charging capacity value ( + 25 percent ). With 4.7V charging voltage, the load on power adapter is greatly reduced and thus can make all types of batteries charged properly.
    3. 4.35V charging time can be very long because charging current is regulated in entering the CV stage at 4.12V, which is same as 4.2V type. Now 4.35V charging algorithm is changed to 4.27V.
    5. Better safety feature: PCB temperature was used to in controlling fan on / off only with 2.0V, now this function is enhanced so that temperature is monitored for entering thermal shutdown mode when excessive high temperature is reached. It is especially helpful when fan is not running and which can lead to plastic melt down happening.
    6. New fan cover provides better protection for cooling fan.
    7. Charging current range: 200mA, 300mA, 500mA, 700mA, 1000mA, 1500mA, 2000mA
    8. Discharge current range:200mA, 300mA, 500mA, 700mA, 1000mA ( Li-ion batteries only )
    9. Max. charging capacity: 20000mAh
    10. Voltage deviation: < 0.03V @4.2V
    11. Current deviation: < 5pct

    Specification

    General

    Brand: Opus
    Type: Charger
    Model: BT-C3100 V2.2
    Plug: EU adapter,UK plug,US adapter
    Charging Cell Type: Lithium Ion,Ni-MH,NiCd
    Compatible: 10440,14500,16340,18650
    Charging Cell Qty: 4
    Input Voltage: AC 100~240V 50/60HZ
    Output Voltage: DC 12V, 3.0A

    Functions

    LCD Screen: Yes
    Circuit Detection: Yes
    Protected Circuit: Yes
    Short Circuit Protection: Yes
    Over Voltage Protection: Yes
    Over Charging Protection: Yes
    Over Discharging Protection: Yes

    Dimension and Weight

    Product weight: 0.2340 kg
    Package weight: 0.5200 kg
    Product size (L x W x H): 14.40 x 9.80 x 3.90 cm / 5.67 x 3.86 x 1.54 inches
    Package size (L x W x H): 16.00 x 22.00 x 5.00 cm / 6.3 x 8.66 x 1.97 inches

    Package Contents

    Package Contents: 1 x Opus BT - C3100 V2.2 Intelligent Battery Charger, 1 x Power Adapter, 1 x English User Manual

     Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries

    This charger is an analyzing charger for LiIon and NiMH batteries, which means the charger can charge and discharge while measuring.

    Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries 

    When the charger is turned on, it displays test where all the text can be seen. 
    When startup is finished it is possible to select mode:

    • CHARGE: Charge battery with 200 to 1000 (2000) mA.
    • DISCHARGE: Discharge battery with 200 to 1000 mA.
    • DISCHARGE REFRESH: Discharge and charge the battery 3 times.
    • CHARGE TEST: Charge, discharge and charge the battery, show how much current was discharged.
    • QUICK TEST: Measure the internal resistance of the battery.


    When display is flashing it is possible to select mode and current.
    Using the slot button it is possible to reselect a slot and change parameters for it, also when charger is working.
    When putting multiple batteries in the charger at the same time, it is possible to select mode and current simultaneous for all of them (Very nice).

    When charging or discharging it is possible to use the DISPLAY button to select between V, mA and mAh.
    The display button can also be used when the charge/discharge is finished, but the charger will change back to FULL display rather quickly.

    Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries

    Here is an example where I have selected different functions for each slot.

    Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries

    Each time a button is pressed, the light turns on for a 20 seconds.
    The FULL and NULL message can also be seen.

    Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries

    The charger uses an external 12 volt power supply at 3A ( see later ).
    It has a fan, this is necessary to handle all four channels at full power. Even with only one channel in use the fan, it start and stop very often. The fan is not very loud, but due to the starting and stopping it is very annoying.


     Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries 

    The charger uses the classical slider construction to handle most battery sizes. The slider works smoothly and can handle sizes from 32mm to 72.5mm.
    For measuring internal resistance the slider is not very good, it often has a high connection resistance.

    Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries

    A couple of different NiMH batteries in the charger.

    Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries

    And some LiIon batteries.

    Using only slot 1 and 4, the maximum charge current is 2000mA.
    In all other cases the maximum charge current is 1000mA.
    The maximum discharge current is always 1000mA.

    Charge currents: 200mA, 300mA, 500mA, 700mA, 1000mA, 1500mA, 2000mA

    Discharge currents: 200mA, 300mA, 500mA, 700mA, 1000mA


    Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries

    Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries

    Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries
     

    The charger can easily handle 
    70mm long batteries.
    It is recommended to charge smaller batteries in the two center slots.
    The charger has an internal switch marked with 3.7V, 4.20V and 4.35V. I have not tested this switch, because it is internal, but it might be possible to charge other Li-ion chemistries.


    Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger for Li-ion NiCd NiMh Batteries

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      FAQ for Opus BT - C3100 V2.2 Smart Battery Charger

      Customer Questions & Answers

      • All (58)
      • Product information (39)
      • Stock status (11)
      • Payment (1)
      • About shipping (7)
      • Others (0)
      • Q

        Hi Will you put 9.34$ on packet to avoid taxa and customs Thanks in advance

        By Jimmy Aug-01/2017 02:08:46

        A

        Hello Jimmy,
        Thanks for your inquiry.

        Sorry, we cannot declare a lower value on the package.

      • Q

        Hello, I'm thinking about ordering this product along with a set of batteries, but can you ship them to Saudi Arabia?

        By Cullu Jun-06/2017 07:06:35

        A

        Hello, Cullu

        Thank you for the inquiry.

        This item can be shipped to Saudi Arabia.

        You can check if you are able to place the order successfully with the batteries, if yes than we can ship the items to Saudi Arabia.

        Please feel free to contact us if you have additional questions.

      • Q

        ESTE CARGADOR..CARGA CUALQUIER TIPO DE PILAS DOBLE AA Y TRIPLE AAA? EL APARATO SE CONECTA A UN ENCHUFE O COMO ES ELPROCEDIMIENTO ,CUANTO DE GARANTIA TIENE EL PRODUCTO Y SI HACEN ENVIOS A COLOMBIA. GRACIAS

        By nathaly Apr-23/2017 03:04:41

        A

        Hello nathaly,
        Designed for AA ( LR6 ) and AAA ( LR3 )NiCd, NiMH or 3.7V Li-ion rechargeable batteries in size type of 18650, 14500, 16340, 10440, also compatible with 10340, 18650, 26650, 26500 ( printed on the package ) and 17670, 18490, 17500, 17335 ( printed on the product )
        ● Operating temperature: 0 - 40 deg.C
        ● Max charging capacity: up to 20000mAh
        ● Power adapter: DC 12V, 3.0A ( output ), 100 - 240V, 50 / 60Hz ( input )
        ● Please NOTE: batteries are not included

      • Q

        1. Does this charger have a car 12V adapter? 2. If it does not, can you recommend one? Thanks.

        By gylgamesh Mar-16/2017 03:03:36

        A

        Hello gylgamesh,

        The Power Adapter is included, you could check the picture on our website.

        Package Contents: 1 x Opus BT - C3100 V2.2 Intelligent Battery Charger, 1 x Power Adapter, 1 x English User Manual


      • Q

        Will this charge size D batteries, and if so how many will fit at one time?

        By Luke Feb-08/2017 04:02:26

        A

        Hello Customer,

        Designed for AA ( LR6 ) and AAA ( LR3 )NiCd, NiMH or 3.7V Li-ion rechargeable batteries in size type of 18650, 14500, 16340, 10440, also compatible with 10340, 18650, 26650, 26500 ( printed on the package ) and 17670, 18490, 17500, 17335 ( printed on the product )


        If the size D battery belong to these type, then it can be used.

      • Q

        Does this package include power adapter?

        By Mircea Iancu Jan-30/2017 06:01:35

        A

        Hello Mircea,

        Thanks for your inquiry.

        Yes, it does.

      • Q

        hello, why is the price for the us and eu version cheaper than the uk ?? Thank you

        By sting Jan-05/2017 01:01:36

        A

        Hello sting,
        Becuase they are different version.

      • Q

        Hey, if this charger can charge LiFePO4

        By Marat Sep-23/2016 08:09:40

        A

        Hello Marat,

        This charger is suitable for 10340,10440,14500,16340 (RCR123),18500,18650,22650,26650 battery, please confirm your battery. Thanks for your attention.

      • Q

        do you have australian plug?

        By n Jun-22/2016 06:06:51

        A

        Hello n,
        We don't have australian plug at the monment

      • Q

        how this charger can charge 4.35v ICR 18650? I can only charge 4.2v what I must do???

        By Customer Mar-29/2016 07:03:10

        A

        Hello Customer,

        Thank you for your inquiry.

        Compatible : 22650, 10340, 18650, 16340 (RCR123), 14500, 18500, 26650, 10440 .

        Charging voltage is regulated to 4.7V instead of 5.0V.


      Prev 1 23456Go To: GO

      • Q

        ESTE CARGADOR..CARGA CUALQUIER TIPO DE PILAS DOBLE AA Y TRIPLE AAA? EL APARATO SE CONECTA A UN ENCHUFE O COMO ES ELPROCEDIMIENTO ,CUANTO DE GARANTIA TIENE EL PRODUCTO Y SI HACEN ENVIOS A COLOMBIA. GRACIAS

        By nathaly Apr-23/2017 03:04:41

        A

        Hello nathaly,
        Designed for AA ( LR6 ) and AAA ( LR3 )NiCd, NiMH or 3.7V Li-ion rechargeable batteries in size type of 18650, 14500, 16340, 10440, also compatible with 10340, 18650, 26650, 26500 ( printed on the package ) and 17670, 18490, 17500, 17335 ( printed on the product )
        ● Operating temperature: 0 - 40 deg.C
        ● Max charging capacity: up to 20000mAh
        ● Power adapter: DC 12V, 3.0A ( output ), 100 - 240V, 50 / 60Hz ( input )
        ● Please NOTE: batteries are not included

      • Q

        1. Does this charger have a car 12V adapter? 2. If it does not, can you recommend one? Thanks.

        By gylgamesh Mar-16/2017 03:03:36

        A

        Hello gylgamesh,

        The Power Adapter is included, you could check the picture on our website.

        Package Contents: 1 x Opus BT - C3100 V2.2 Intelligent Battery Charger, 1 x Power Adapter, 1 x English User Manual


      • Q

        Will this charge size D batteries, and if so how many will fit at one time?

        By Luke Feb-08/2017 04:02:26

        A

        Hello Customer,

        Designed for AA ( LR6 ) and AAA ( LR3 )NiCd, NiMH or 3.7V Li-ion rechargeable batteries in size type of 18650, 14500, 16340, 10440, also compatible with 10340, 18650, 26650, 26500 ( printed on the package ) and 17670, 18490, 17500, 17335 ( printed on the product )


        If the size D battery belong to these type, then it can be used.

      • Q

        Does this package include power adapter?

        By Mircea Iancu Jan-30/2017 06:01:35

        A

        Hello Mircea,

        Thanks for your inquiry.

        Yes, it does.

      • Q

        hello, why is the price for the us and eu version cheaper than the uk ?? Thank you

        By sting Jan-05/2017 01:01:36

        A

        Hello sting,
        Becuase they are different version.

      • Q

        Hey, if this charger can charge LiFePO4

        By Marat Sep-23/2016 08:09:40

        A

        Hello Marat,

        This charger is suitable for 10340,10440,14500,16340 (RCR123),18500,18650,22650,26650 battery, please confirm your battery. Thanks for your attention.

      • Q

        do you have australian plug?

        By n Jun-22/2016 06:06:51

        A

        Hello n,
        We don't have australian plug at the monment

      • Q

        how this charger can charge 4.35v ICR 18650? I can only charge 4.2v what I must do???

        By Customer Mar-29/2016 07:03:10

        A

        Hello Customer,

        Thank you for your inquiry.

        Compatible : 22650, 10340, 18650, 16340 (RCR123), 14500, 18500, 26650, 10440 .

        Charging voltage is regulated to 4.7V instead of 5.0V.


      • Q

        Как долго будет идти посылка при бесплатной доставки заказа?

        By Михаил Mar-15/2016 05:03:48

        A

        Hello Михаил,

        The free shipping is only for the flat rate shipping.

        We generally require between 3-7 business days to arrange shipment upon payment. The exact processing time varies depending on the item.
        Please refer to our shipping estimation below:
        A. Expedited Shipping: Around 3-7 business days to arrive.
        B. Standard Shipping: Between 7-10 business days to be delivered.
        C. Flat Rate Shipping: Between 10-25 business days to be received.
        For more shipping details http://www.gearbest.com/about/shipping-methods.html

      • Q

        Hello! Delivery to Kazakhstan free? Привет! Доставка в Казахстан бесплатная?

        By Vitaliy Feb-07/2016 10:02:35

        A

        Hello Vitaliy,

        Thank you for your inquiry,we can ship it to Kazakhstan for free shipping.Have a nice day.


      Prev 1 234Go To: GO

      • Q

        Do you have it in stock?

        By Alexey Romza Mar-02/2016 10:03:35

        A

        Hi ,

        We are pleased to inform it is available for purchase.Have a nice day.


      • Q

        When it would be in stock?

        By Alexey Romza Feb-24/2016 05:02:06

        A

        Hi ,

        We are pleased to inform it is available for purchase.Have a nice day.


      • Q

        есть ли в наличие?

        By александр Dec-05/2015 01:12:04

        A
        Thank you for your inquiry. It is available for purchase. Thanks in advance for your order. Have a nice day.
      • Q

        Hello ! When do you plan to have it back in stock in EU warehouse ?

        By Mihai Nov-16/2015 10:11:08

        A
        Hi Mihai, We are sorry that we do not have the plan to sell this phone in the EU warehouse for the moment. Please pay attention to our website for the update. Please feel free to ask if you have further questions.
      • Q

        Hello, when will you restock this item in the EU warehouse? It has been out of stock for some time now. Thank you, João.

        By João Machado Nov-12/2015 03:11:43

        A
        Hi João, I am sorry that this item is unavailable in EU stock for now. We can not sure when it will be available in EU stock. It depends on the customers' demand and the production of this item. We will try to replenish this item in EU as much as we can. Please kindly continually concern this item on our website. For now it is only available in China-Warehouse. Thank you for your understanding. Please feel free to ask further presale questions.
      • Q

        Qu'il y ait une présence dans ce produit maintenant

        By JCS Oct-16/2015 09:10:42

        A
        Hi JCS , We are delighted to inform you that the item is in stock and is available for purchase.
      • Q

        Hi there, do you know if you will be restocking this charger?

        By Andreas Oct-13/2015 03:10:14

        A
        Hi Andreas, We are delighted to inform you that the item is in stock and is available for purchase.
      • Q

        Hello! Will specify please. Whether there is in a presence this commodity now. Thank you, with impatience I expect an answer from you!

        By Ivan Oct-01/2015 10:10:36

        A
        Hi Ivan, We are delighted to inform you that the item is in stock and is available for purchase.
      • Q

        Hi! This item is available in stock? I want to pay but I fear a long wait. Привет ! Этот пункт есть в наличии на складе? Я хочу оплатить но боюсь долгого ожидания.

        By Val. Aug-22/2015 08:08:48

        A
        Hi Val., It is in stock and is available for purchase now. But there are a lot of customers placing order on our website, so it will be not in stock at any time. Thanks for your understanding!
      • Q

        do you have the Opus BT-C3100 Charger in stock?

        By Richard Jul-16/2015 05:07:55

        A
        Hi,Richard ! I am delighted to inform you that the item is in stock and is available for purchase.

      Prev 1 2Go To: GO

      • Q

        is EU plug the only on-sale item? i want an US plug. Price difference i see now is around $10. thanks

        By gg Jan-03/2016 05:01:02

        A
        Hi Gg, there are 3 standard plugs of this item - US, EU and UK plug versions. They are available now. Welcome to order! Thank you for your interest in our products. To know more about plug-types, please refer to http://www.worldstandards.eu/electricity/plugs-and-sockets/
      • Q

        Hi Will you put 9.34$ on packet to avoid taxa and customs Thanks in advance

        By Jimmy Aug-01/2017 02:08:46

        A

        Hello Jimmy,
        Thanks for your inquiry.

        Sorry, we cannot declare a lower value on the package.

      • Q

        Hello, I'm thinking about ordering this product along with a set of batteries, but can you ship them to Saudi Arabia?

        By Cullu Jun-06/2017 07:06:35

        A

        Hello, Cullu

        Thank you for the inquiry.

        This item can be shipped to Saudi Arabia.

        You can check if you are able to place the order successfully with the batteries, if yes than we can ship the items to Saudi Arabia.

        Please feel free to contact us if you have additional questions.

      • Q

        Good morning, my name is Rossano, and I live in Italy, because I would be interested in buying the OPUS charger BT-C3100 v2.2, (clearly version 2.2), first I would like to know if there are problems to dispatch in Italy, in particular, there may be additional costs for customs, or if there are additional payments after the purchase in Italy? I would also ask if I can buy the rechargeable lithium batteries AA and AAA, if there are no problems of shipping and customs for Italy? The payment, I would do it through paypal. Thank you. Best regards.

        By Rossano Dec-16/2015 12:12:32

        A
        Hi Rossano, we can deliver it to Italy. Please add the items to cart and Proceed to Checkout, then fill the detail destination information. You will see the Available Shipping Methods, Estimated Shipping Time and Insurance. The Shipping Cost and Grand Total amount will be displayed for each shipping method. You can pay for order by PayPal and credit card via PayPal. For more information, please refer to http://www.gearbest.com/about/about-us.html According to our experience declaring a lower value on the shipping will usually allow customers to reduce possible import taxes or customs blockages. If you have any specific requirement regarding declaration, please leave us message when you check-out. Thank you for your understanding.
      • Q

        hello sir/madam will you give tracking number when sending item from china to turkey with Flat Rate Shipping option? thanks.

        By umit Oct-27/2015 06:10:45

        A
        Hi Umit, For flat rate shipping:By default there is no tracking number as this is the cheapest shipping method. Most of the time we offer it for free. However we can ugrade your delivery if you purchase the Tracking Number option available in the check out for a small fee. Thank you for your inquiry.
      • Q

        Hello. Can I order a product from a warehouse in Europe? I need a delivery to Russia.

        By Denis Yakovlev Oct-27/2015 11:10:09

        A
        Hi Denis, We can ship it from EU warehouse to Russia. Thank you for your inquiry.
      • Q

        Hello. I Am a visitor in canada and i want to order this item. How long do you think will it take that i can have this charger in my hands befor i leave Canada. Thanks for your reply

        By Mash Sep-18/2015 03:09:20

        A
        Hi Mash, Total Delivery Time = Processing Time + Packaging Time + Shipping Time We generally require between 3-5 business days to arrange shipment of orders. The exact delivery time depends on the shipping method you choose. 1) Expedited Shipping: Around 4-7 business days to arrive. 2) Standard Shipping: Between 6-8 business days to be delivered. 3) Flat Rate Shipping: Between 10-25 business days to ship to the destination. Please check the details in the following link http://www.gearbest.com/about/shipping-methods.html
      • Q

        How much days is the delivery to Russia

        By St Jul-02/2015 01:07:01

        A
        Hi,St! Total Delivery Time = Processing Time + Shipping Time We will need approximately 3-5 business days to arrange shipment of your order. It depends on the shipping method you choose. For small quantity orders,the processing time is 1-3 busiensss days while large quantity order may require a few days more. 1) Flat Rate Shipping: Between 7-25 business days to ship to the destination, by post office. 2) Standard Shipping: Between 6-8 busines days to be delivered, by EMS. 3) Expedited Shipping: Around 3-7 business days to arrive, by DHL/FEDEX/IB. For more information about shipping http://www.gearbest.com/about/shipping-methods.html
      58 Questions & AnswersView All Ask a question

      Customer Reviews

      Overall Customer Rating:

      4.9 Base on 1107 Customer Reviews

      Share your thoughts with other customersWrite a review

      • All (1107)
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      • Lazzaro20
        Good charger
        Pros:
        This charger meets all my needs:
        It has a single channel charge, that is, you can upload an unlimited number of batteries, so that only one, two, three or all four simultaneously. This is important for me because I have a number of devices that only need a battery or three.
        Ordinary charger can only pairs (ie 2 or 4 at a time) load.
        You can combine the types of batteries colored, so you can simultaneously charge different capacity NiMH batteries and lithium ion batteries.
        Each span can individually adjust the charging current and the function.
        Functions dominates the charger following:
        * Download (Sure)
        * Exhaust (in order to avoid any memory effects with NiMH)
        * Refresh (charger repeatedly discharge and charge cycles until improvement in battery capacity you get more. So you can old batteries, or those who have long remained, still breathing a little 'life)
        However, Opus can also deal with Li-Ion batteries, and I have the chance to request a particular device in your home. Moreover, the battery of tests (measurement of internal resistance).
        I hardly use this feature however.
        A fan, the device is also to cool the batteries, which should become warm during charging. I was able to observe that the fans have already activated, very hot but the batteries were not.
        Conclusion: excellent charger handyman.
        Cons:
        No

        Oct 28,2015

        Is this helpful?Yes (1)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • p5bdkw
        BT-C3100 V2.2, An Excellent Charger
        Pros:
        Backlit screen (will turn it off after 20 seconds)
        Backlit can be turned on permanently by pressing "DISPLAY" for 3 seconds.
        Charges Ni-Cd, NiMH and Li-ion batteries.
        Rubber feet.
        Approx. 3/16" bottom clearance
        6 internal temperature sensors.
        Small fan to exhaust heat.
        Fan noise has been improved from previous version (BT-C3100 V2.1).
        Excellent build quality.

        Has 5 MODES:
        CHARGE, DISCHARGE, REFRESH (DISCHARGE REFRESH),
        TEST (CHARGE TEST), QUICK TEST.

        CHARGE:
        Charges battery to maximum capacity.

        DISCHARGE:
        Discharges battery. Reduces the memory effect in the battery.

        REFRESH (DISCHARGE REFRESH):
        Discharges, then charges battery 3 complete cycles to optimize it's
        maximum capacity.

        TEST (CHARGE TEST):
        Checks the capacity of the battery.

        QUICK TEST:
        The charger checks the dynamic internal battery resistance.
        Consult manual for further details.

        This is an excellent, fun, easy to use, charger, that gives you total control of how
        you want to charge and maintain your batteries. A big plus is the ability to get the
        capacity of the batteries. The fan noise is considerably less annoying than the one
        on the V2.1 charger, IMHO. This charger is a great companion to my XTAR VP2.

        GearBest got it to me, fast!!!
        Thanks!!
        Cons:
        None

        May 02,2015

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      • Ray
        Great charger
        Pros:
        All automatic, will take many different sizes of battery. Can be set to different custom charging. But for the most part I will run this on automatic. I like the refresh function for use on older batteries.
        Cons:
        none

        Jun 21,2015

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      • mikexiangkimo
        Versatile battery charger
        Pros:
        1. Build quality is great.
        2. Operational panel is very clear and easy to understand.
        3. Can charge up to 2A (for a single battery).
        4. The fan does help cooling down temperature (but it will still be warm to hot if you charge it at high current).
        Cons:
        The biggest and annoying issue I found is that, sometimes the fan may behave weirdly. It will make irregular and loud noise when it's running, which makes me wonder if there is any issue about the upgrade from V2.1 to V2.2.

        Aug 04,2015

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      • alexis6
        good charger
        Pros:
        v.2.2 more silent than previous revisions.
        Cons:
        not euro plug for charger

        Aug 16,2015

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      • fondeer77
        Opus BT - C3100 V2.2
        Pros:
        Хорошая зарядка. Заряжает как обычные, так и литиевые аккумуляторы. Отсортировал старые обычные аккумуляторы на еще живые и совсем дохлые.
        Cons:
        Минусов пока не заметил. Можно было б переходник на евророзетку положить, чтоб не искать отдельно.

        Aug 27,2015

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      • boromir
        Opus BT - C3100 V2.2 Smart Battery Charger - EU PLUG PURPLISH BLUE
        Pros:
        professional charger
        easy to use
        active cooling
        Cons:
        none

        Sep 18,2017

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      • Simoes
        Top
        Pros:
        It performs its functions integrally
        I recommend
        Cons:
        Nothing

        Sep 18,2017

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      • Oktay
        funtioniert und funktioniert und funtioniert
        Pros:
        läd 2 Wkkus relativ schnell. Bei 4 dauerts länger. Bis jetzt ist der Akku Schnapper einwandfrei und zeigt keine ermüdung.
        Cons:
        keine

        Sep 18,2017

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      • Beni
        great charger
        Pros:
        great charger for a great price,
        Cons:
        none

        Sep 16,2017

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      • boromir
        Opus BT - C3100 V2.2 Smart Battery Charger - EU PLUG PURPLISH BLUE
        Pros:
        professional charger
        easy to use
        active cooling

        Cons:
        none

        Sep 18,2017

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      • Beni
        great charger
        Pros:
        great charger for a great price,

        Cons:
        none

        Sep 16,2017

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      • Giuseppe Molfino
        Il miglior caricabatterie universale in questa fascia di prezzo.
        Pros:
        Un buon caricabatterie, in questa fascia di prezzo credo sia il migliore. Ho anche avuto il Nitecore D4, ma questo è decisamente superiore.
        Ha qualche difetto, ma nel complesso sono soddisfatto dell\'acquisto.
        Se cercate un\'ottima recensione in italiano su questo caricabatterie, guardate questo bel video su YouTube:
        https://www.youtube.com/watch?v=Kp_80M7VYa8.
        Ho visto in vendita qui su Gearbest anche un caricabatterie che può ricaricare anche le nuovissime batterie Ni-Zn, ma costa oltre il doppio di questo.
        Ha tante funzioni e si può selezionare la velocità di carica selezionando tra 200 - 300 - 500 - 700 - 1000 - 1500 - 2000 mAh per ciascuno slot (1500 e 2000 mAh solo per lo slot 1 e 4 se usati singolarmente).

        Cons:
        Ventola un poco rumorosa e indicatori non molto precisi.

        Sep 14,2017

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      • Алексей
        Mr.
        Pros:
        Отличная зарядка, позволяет заряжать, тестировать, восстанавливать различные типы аккумуляторов. Позволяет установить ток заряда. Новая оптимизированная прошивка.

        Cons:
        Для охлаждения установлен маленький вентилятор. Иногда шумит.

        Sep 13,2017

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      • Ricardo Azevedo
        Opus
        Pros:
        - Excelente carregador , fácil de trabalhar e intuitivo.
        -Cheguei dentro do prazo previsto.

        Cons:
        - Sem nada a apontar.

        Sep 13,2017

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      • Рафа
        хороший продукт
        Pros:
        Отличная универсальная зарядка, под все типы мелких аккумуляторов.

        Cons:
        нет

        Sep 13,2017

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      • Ilya
        Opus BT-C3100 V2.2 Smart Battery Charger EU Plug
        Pros:
        Отличное ЗУ практически для всех типов аккумуляторов (кроме кроны). Умная, аккуратная логика зарядки.

        Cons:
        нет

        Sep 11,2017

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      • jim
        graet
        Pros:
        great batttery charger with great quality and very safe

        Cons:
        nothing

        Sep 08,2017

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      • Smokie
        Opus BT-C3100 V2.2
        Pros:
        Gutes Ladegerät zum günstigen Preis. Ist Version 2.2 also was leiser.

        Cons:
        None

        Sep 04,2017

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      • Sergey
        Great charger!!!
        Pros:
        Highly useful display shows several vital bits of information as the batteries charge. Offers several charging current options...all the way up to 2000mA!

        Cons:
        Highly useful display shows several vital bits of information as the batteries charge. Offers several charging current options...all the way up to 2000mA!

        Sep 04,2017

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      • Lazzaro20
        Good charger
        Pros:
        This charger meets all my needs:
        It has a single channel charge, that is, you can upload an unlimited number of batteries, so that only one, two, three or all four simultaneously. This is important for me because I have a number of devices that only need a battery or three.
        Ordinary charger can only pairs (ie 2 or 4 at a time) load.
        You can combine the types of batteries colored, so you can simultaneously charge different capacity NiMH batteries and lithium ion batteries.
        Each span can individually adjust the charging current and the function.
        Functions dominates the charger following:
        * Download (Sure)
        * Exhaust (in order to avoid any memory effects with NiMH)
        * Refresh (charger repeatedly discharge and charge cycles until improvement in battery capacity you get more. So you can old batteries, or those who have long remained, still breathing a little 'life)
        However, Opus can also deal with Li-Ion batteries, and I have the chance to request a particular device in your home. Moreover, the battery of tests (measurement of internal resistance).
        I hardly use this feature however.
        A fan, the device is also to cool the batteries, which should become warm during charging. I was able to observe that the fans have already activated, very hot but the batteries were not.
        Conclusion: excellent charger handyman.

        Cons:
        No

        Oct 28,2015

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      • plrk
        Opus BT - C3100 V2.2 Smart Battery Charger
        Pros:
        Opus BT - C3100 V2.2 Smart Battery Charger very good product with many protections

        Cons:
        its charge batteries as it should

        Jul 07,2017

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      • Miroslav
        opus bt-c3100 v2.2
        Pros:
        пожалуй лучшее зарядное устройств на текущий момент
        идеальный набор функций
        поддержка распространенных форматов батарей

        Cons:
        все же вентилятор шумноват для нахождения ночью в спальне

        Jan 14,2017

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      • Alex
        Man
        Pros:
        This charger is the best on the market. It has everything you need to charge almost an type of rechargeable batteries

        Cons:
        no cons

        May 15,2016

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      • redfox2
        Opus BT C3100 V2 2
        Pros:
        Very good Opus BT C3100 V2 2!!!

        Cons:
        no

        Aug 04,2016

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      • pozitivnick
        Opus BT - C3100 V2.2
        Pros:
        Отличная умная зарядка - делает всё что нужно, быстро и качественно ;)

        Cons:
        только если цена =) Ну и вентилятор какой нибудь на 140*140 поставилибы для безшумности))

        Aug 30,2015

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      • boromir
        Opus BT - C3100 V2.2 Smart Battery Charger - EU PLUG PURPLISH BLUE
        Pros:
        professional charger
        easy to use
        active cooling

        Cons:
        none

        Sep 18,2017

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      • Simoes
        Top
        Pros:
        It performs its functions integrally
        I recommend

        Cons:
        Nothing

        Sep 18,2017

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      • Oktay
        funtioniert und funktioniert und funtioniert
        Pros:
        läd 2 Wkkus relativ schnell. Bei 4 dauerts länger. Bis jetzt ist der Akku Schnapper einwandfrei und zeigt keine ermüdung.

        Cons:
        keine

        Sep 18,2017

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      • Beni
        great charger
        Pros:
        great charger for a great price,

        Cons:
        none

        Sep 16,2017

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      Shipping & Payment

      Shipping

      There are two key factors which will affect the time you receive your items.

      1
      Item processing time
      After confirming your payment, we usually ship products out within 24 business hours. However, sometimes due to large transaction volumes or other order issues, we may require up to 3 working days to process orders. You will receive a notification email as soon as your product(s) have been dispatched.
      2
      Shipping methods
      China Warehouse:
      Shipping Type Country or Region Arrive within 1-7 Days Arrive within 8-15 Days Arrive within 16-30 Days Arrive within 31-45 Days Average Time (Days)
      Unregistered Air Mail or Registered Air Mail United States 0% 20.8% 60.9% 5.13% 19.2
      Spain, United Kingdom, Italy, Germany, France & Portugal 1.62% 41.09% 43.26% 5.71% 19.9
      Netherlands, Greece, Poland 5.59% 44.44% 35.84% 13.00% 18.76
      Russia 0% 11.20% 68.50% 15.80% 24.6
      Japan, Korea 0% 21.30% 68.80% 9.66% 15.95
      Brazil 0% 0.00% 17.96% 54.14% 38.6
      Thailand, Singapore & Malaysia 0% 15.50% 45.75% 21.36% 19.03
      Other countries 0.73% 40.41% 49.93% 8.92% 20.28
      Priority Line United States 49.90% 46.30% 0.93% 0.06% 8.3
      Spain, United Kingdom, Italy, Germany, France & Portugal 5.55% 74% 19% 0.38% 10.8
      Russia 0% 0.75% 88.30% 9.05% 20.04
      Australia 7.67% 86.60% 5.68% 0% 11
      Korea 77.01% 21.40% 1% 0% 5.6
      Japan 95.80% 2.09% 0% 0% 5.4
      Thailand, Singapore & Malaysia 58.96% 41.04% 0% 0% 8
      Other countries 40.75% 49.96% 5.13% 0% 10
      Expedited Shipping ALL countries(EMS) 39.85% 50.09% 8.96% 0% 9
      ALL countries(DHL) 90.15% 9.84% 0% 0% 4.48
      EU Warehouse: Typically 3-5 days to the UK, 3-7 days to other European countries.
      USA Warehouse:Generally, 3-7 days to a USA address.
      ES Warehouse:Generally, 2-5 days to the Spain, 3-7 days to the Portugal.
      Shipping from warehouse nearest to shipping address is faster. Additional charges may apply.
      Note:This is a general guide and delays maybe caused force majeure, natural disasters, inclement weather, war, public holidays, and factors outside our control.

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