Size 2 = 2 Batteries; Size 6 = 6 Batteries  
<br />
<br />Package List:
<br />2/6 x 18650 USB Rechargeable Battery
<br />
<br />Note:Red light means charging,Yellow light means full.
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<br />Features:
<br />Great for  Flashlights,Cameras, Remote Control Cars, MP3 Players,Headlamp,Laser Pointer etc.
<br />As long as you have a USB, and you can charge it.
<br />From digital products to make your full power
<br />Applicable to all digital products powered by 18650 battery.
<br />Plug into any USB port to recharge
<br />Strong Elastic Retainer (so you don't lose the cap)
<br />Suitable for any normal charger
<br />
<br />Specification:
<br />Brand description: USB 18650 charging battery
<br />Model: 18650
<br />Type: lithium battery
<br />Currently used the new product battery core, voltage 3.7v
<br />support the overcharge, discharge protection, voltage 2.75 4.2v
<br />maximum working current 2.7A
<br />Diameter 18mm, length 65mm 
<br />support all USB charging power supply and household 220v power charging.
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