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http://flashlightwiki.com/Rechargeable

Cossatot 1000 XL Duty USB .

Product – 10pcs 4000mAh 3.7V -ion Battery Cell for Torch.

batteries are 3.7-volt lithium-ion batteries, a size classification of -ion batteries, which are .

The Cossatot 1000 is a high-intensity tactical that is USB and includes one battery. Designed for easy operation, this

https://en.wikipedia.org/wiki/Rechargeable_battery

https://en.wikipedia.org/wiki/Rechargeable_alkaline_battery

https://en.wikipedia.org/wiki/Rechargeable_calling_card

Amazon.com: 18650 rechargeable flashlight

rechargeable flashlight 18650 | eBay

18650 Rechargeable Batteries – Walmart

18650 – Fenix Flashlights

18650 Flashlights – BatteryJunction.com