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3-cell, 3.6 Volt Ni-MH sub-C battery (included). up to 1000 times. Charges for 10 hr.

Lithium ion battery up to 500 times; fully in three hours. Anti-roll head so stays where you place it.

The HP5R has a beam distance of up to 172 meters, making it an excellent duty for all types of tactical, rescue and law enforcement professionals.

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

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

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

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

Galls Rechargeable Tactical Flashlight

Flashlights for Police, Fire, EMS and Tactical – Galls

Galls Rechargeable Tactical Flashlight – QMuniforms.com