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Solarstorm 2S2P 18650 Battery Case
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Solarstorm 2S2P 18650 Battery Case

- Black

    COD This product supports COD on delivery. Suggestions: Do not place orders with non-COD products, otherwise you will not be able to choose COD payment method.
    Ship between: Apr 26 - Apr 28, Estimated Shipping Time: business days Order Processing Time may require a few days. Once dispatched from warehouse, Shipping (or Delivery) Time depends on the Shipping Method.
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Features: Max. 2000mAh 8.4V

Caution: Batteries are not included!!



Brand: Solarstorm
Model: 2S2P
Accessory type: Holder
Color: Black

Dimensions and Weight

Product weight: 0.1120 kg
Package weight: 0.1600 kg
Product size (L x W x H): 10.50 x 4.50 x 4.50 cm / 4.13 x 1.77 x 1.77 inches
Package size (L x W x H): 13.00 x 6.00 x 6.00 cm / 5.12 x 2.36 x 2.36 inches

Package Contents

Package Contents: 1 x Solarstorm 2S2P Battery Case, 1 x Bag

Solarstorm 2S2P 18650 USB Battery Case 8.4V 2000mAh Max- Black

Solarstorm 2S2P 18650 USB Battery Case 8.4V 2000mAh Max- Black

Solarstorm 2S2P 18650 USB Battery Case 8.4V 2000mAh Max- Black

Solarstorm 2S2P 18650 USB Battery Case 8.4V 2000mAh Max- Black

Solarstorm 2S2P 18650 USB Battery Case 8.4V 2000mAh Max- Black

Solarstorm 2S2P 18650 USB Battery Case 8.4V 2000mAh Max- Black

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Customer Reviews

4.86 out of 5
  • 126
  • 16
  • 2
  • 0
  • 0
See all 144 reviews Write a Review
  • Vasili
    Yes (2) Color: Black
    18650 case
    Купил данный девайс, т.к имеется в хозяйстве велофара SolarStorm, и к ней родной аккумулятор, состоящий, естественно, из 4-х 18650! Которые большую часть года бездействуют! Теперь можно их (18650) использовоть и как "повербанку". Правда комплектные аккумуляторы ппц слабые, около 800 мАч... Год назад сдесь же покупал 2шт sanyo по 2600мАч, получаеться что их общая емкость раза в полтора больше комплектных 4-х!)
    Девайс выглядит и в руках ощущаеться достойно, не дешевая фиговина! Крышка, в моем случае, садиться хорошо и с родной резинкой!
    Пока не нашел

    Dec 11,2016

  • bart
    Yes (1) Color: Black
    nice battery holder
    usb connector
    water proof sealing
    nice velcro strap
    battery load indicator
    good price! -> on ebay >12€
    sticker with info for battery placement
    no battery included ;-)

    Nov 10,2016

  • Chris
    Yes (1) Color: Black
    Good for bike power
    Using it to power both front (8.4V) and rear (5V usb) lights as well as camera 5V usb)
    None - very well made

    Dec 19,2016

  • Павел
    Yes (1) Color: Black
    Хороший блок
    Прочный и настоящим винтом крепится, без всяких фиговых пластиковых защёлок.
    Не всегда нужен usb, заглушку бы какую на него.

    Nov 22,2016

  • Tigris99
    Yes (0) Color: Black
    Great case
    -Water resistant (not really water proof but its not meant to go swimming with).. Works fine in rain or even water poured on it.
    -USB works great for charging phone
    -Protection works great except you have to balance charge your cells often otherwise if cells get too far out of balance protection may not work correctly. If You do mod, then it works flawlessly (wire with resistor from lower contacts to proper location on circuit board)
    -Works with protected or unprotected cells
    -LED indicator works perfectly. But if you use cheap cells, it lets you know, if you use good cells then as soon as you turn light on it doesnt drop 1 or 2 of the indicators saying power is low as it does when you use cheap batteries. With Sanyos and Panasonics it works perfectly and tested across DMM. It is only 3 step voltage based. Which works just fine, 3 is full, 2 is about half, 1 is low, flashing is warning before protection kicks in. Tested on both cases I own. And I have a third on the way.
    -Can use with 2 or 4 cells, doesnt require 4 batteries to function.
    -Strap set up is great except one thing, no rubber or foam on the case or strap to keep from sliding. Cheap fix though
    -Protection circuit. Takes a modification to make work completely correct to the point cell balancing isnt required. Always recommended with Li-Ion batteries to balance charge occasionally if they are loose cells.
    -Wires being PVC or Silicon means NOTHING for something like this. Has no affect on performance. The issue with the wire though is the gauge is TOO SMALL. 24awg from case to where the "Y" splits then its 22awg. 20awg is preferred but 22 works well enough. 24awg is too high of resistance so hinders light output slightly if on a higher output light like solarstorm x3 and x4. Works decent for ones like Yinding that arent drawing so much current. Something that is fixable if you dont need the USB.
    -Need foam/rubber on case/strap to prevent case from sliding or scratching bike frame.

    Apr 19,2015

FAQ for Solarstorm 2S2P 18650 Battery Case

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Customer Questions

  • All(19)
  • Product Information(16)
  • Stock Status(1)
  • Payment
  • About Shipping(1)
  • Others(1)

Hello is this charger suitable for your HG2 3000mAh 18650 Li-ion Battery? Thank you

By patrick Mar-05/2017 21:17:33

Hello patrick, Yes they are compatible.

hi, can this box charge the batteries ?

By Iván Sep-25/2016 03:48:16

Hello Iván,The box can charge the batteries. Thanks for your attention. 

Hello, I would like to know whether there is available (in stock) This product !?

By JoSh May-30/2016 11:03:12

Hello,Yes, the item is in stock now.Welcome to buy items on our website.

Can i use that Battery Holder for the Nitefighter BT40S ?

By Fernando May-13/2016 01:07:21

Hello Fernando,You can  use that Battery Holder for the Nitefighter BT40S

Where is the connector to use this box to charge the batteries. Can I charge batteries with it? Can I need a transformer or can I connect it from usb for charging?

By Luis May-10/2016 02:35:23

Hello Luis, Thank you for your inquiry. You don't need a transformer to charge the batteries.

Are the 4 batteries connected in serie or in parallel? The integrated regulator, is it a stup-up( betteries in parallel), or a step-down (batteries in serie)? Thank you for yout help.

By Vincent Apr-12/2016 13:29:58

Hello Vincent,Thank you for your inquiry,the 4 batteries are connected in serie.It is a step-down (batteries in serie).Have a nice day.

What product do I need to to buy to charge batteries in this item?

By Adam Feb-07/2016 10:07:08

Hello Adam,Thank you for your inquiry,you don't need to by other thing to charge batteries in this item.Have a nice day.

Hi there a have a few questions about this product: 1 - Batery is including or not? (Package Contents - it is specified that yes, - batery is including - But the re was one question from "davidarranzmate Feb-18/2015 04:02:58 and reply was "Hi david,the case do not includ the batteries."") 2 - This case have charger/discharger balancer for 2x18650 8.4V or only discharger? 3 - There is specified that usb output stand voltage is 5V 2000mA, - Is there avalible 8.4V ouput?(second one plug (non usb) has also low voltage 5V output ?) 4 - What aproximate delivery time will be (by using free shipping option to Ukraine) in case if 18650 litium battery is including. Thanks.

By Vladislav Nov-23/2015 14:09:48

Hi Vladislav, we regret to inform you that the batteries are not included. The over-charge protection voltage is 8.4V. Please kindly refer to the spec of this item at:  Generally we need 3-5 business days (excluding non-working days)for processing your order. The typical flat-shipping time is 10-45 working days. Total Delivery Time = Processing Time + Packaging Time + Shipping Time There are some external factors which may cause some delay on delivery time,such as remote locations, peak shopping and shipping periods, holidays and festivals, inclement weather and delay by corresponding customs' operations and express company.  Thank you for your inquiry. Please feel free to ask further presale questions. 

is there a similiar box solution (8,4 V) but only for 2x 18650? Would like to save weight and space...

By Klaus E. Sep-22/2015 22:20:09

Hi Klaus,  We are sorry we dont have the similiar box solution (8,4 V) but only for 2x 18650.

Hi, work the item also with button top and protected rechargeable batteries?

By Michael Jul-08/2015 11:49:42

Hi,we would like to inform it can work the item also with button top and protected rechargeable batteries.

19 Questions & Answers View All

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

Item processing time
After receiving your order,we require some time to test the product to ensure its quality.The exact processing time varies depending on the item.The average processing time is 3 working days.but this can also be affected by the item's stock status. For small quantity orders,the processing time is 1-3days while larger quantity orders may require 2-5days.
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 0.52% 44.87% 49.88% 3.5% 18.13
Spain, United Kingdom, Italy, Germany, France & Portugal 5.18% 43.44% 48.34% 1.17% 15
Netherlands, Greece, Poland, Hungary, Slovakia, Czech Republic 2.96% 40.34% 52.54% 3.74% 18.66
Russia 0% 4.45% 84.41% 11.1% 28
Japan, Korea 0% 21.30% 68.80% 9.66% 17.75
Brazil 0% 0% 23.91% 72.09% 38.6
Turkey 0% 37.75% 59.05% 3.1% 20.33
Thailand, Singapore & Malaysia 0% 40.39% 56.12% 2.6% 16.2
Other countries 0.7% 38.79% 47.94% 8.56% 23.57
Priority Line United States 12.28% 79.05% 7.4% 0.52% 11.75
Spain, United Kingdom, Italy, Germany, France & Portugal 8.44% 66.56% 23.45% 0.45% 13.55
Russia 0% 3.48% 75.79% 20.04% 31
Brazil 2.21% 6% 61.29% 25.46% 30
Turkey 20.42% 77% 3% 0.08% 10
Australia 7.67% 86.60% 5.68% 0% 11
Korea 97.54% 1.57% 0.89% 0% 7
Japan 95.80% 2.09% 0% 0% 6.84
Thailand, Singapore & Malaysia 58.96% 41.04% 0% 0% 8.45
Other countries 22.33% 30.8% 27.62% 17.64% 18.65
Expedited Shipping ALL countries(EMS) 3.8% 46.8% 26% 15% 14.8
ALL countries(DHL) 65.8% 25.75% 3.86% 0.37% 6.72
GW 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. Generally speaking, we offer free shipping for Solarstorm 2S2P 18650 Battery Case to United States (US, USA), United Kingdom (UK, GB), Germany, Italy, France, Spain, Portugal, Poland, Brazil, Russia, Japan, Greece, Austria, Hungary, Slovakia, Czech Republic, Ireland, Lithuania, Israel, Denmark, Norway, Sweden, Canada, Australia, Netherlands, Korea, Turkey, Mexico, Ukraine, Romania, Columbia, Thailand, Singapore, Malaysia etc. Please choose the shipping methods for the final price.

Payment accepts PayPal,Credit Cards,Wire Transfer,Westem Union, YandexMoney,Webmoney,Boleto,OXXO and BKM as secure payment methods.

The most convenient payment method in the world.
Wire transfer
For orders which exceed $1,500,please contact us at
Note: please email us the order number,the amount transferred along with currency type,and the exact date of the wire transfer.
Western Union
Please contact us at for details.
Note: please email us the following information after you have paid via Westem Union:
· Control Number(10 digits)
· The exact amount sent along with the currency
· Name of sender.
· Address of sender
YandexMoney、 Webmoney
With YandexMoney and Webmoney, it is convenient and safe for you to pay via credit card、wallet or cash
For Brazil customers, we accept Boleto: you only need to fill in the payment information, remember your Boleto Voucher information and pay it within 3 days at any Boleto stores.
For Mexico customers, we accept OXXO: you can choose OXXO payment on our website, and then remember your OXXO Voucher information and pay it within 3 days at any OXXO stores.

Do you want to bulk buy ? Please submit your wholesale inquiry below. Please note we usually don’t offer free shipping on wholesale orders, but the wholesale price will be a big bargain.

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