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Micro USB Charging: Not only is Nitecore’s MH , it uses a standard micro USB charger. That means that you can your MH with your computer, your phone charger, your Rexford Tools SMART Charger, virtually any powered USB port!

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

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

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

Streamlight STRION Rechargeable C4 LED Flashlight – Galls