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A is one of those things you may not need until you’re really in a pinch – and at that point, there’s nothing more frustrating than tracking down the only to realize that you’re out of batteries. That’s why a can be so handy…

works great, but I’ve already had one of the batteries fail to after very limited use.

Cossatot 1000 XL Duty USB .

Upload . [Rechargeable] Anker Bolder LC40 Flashlight … Anker Super Bright Tactical Flashlight …

MANKER LAD Mini USB Rechargeable Keychain Flashlight