Klarus 21700 Battery, 5000mAh, High-Drain 15A, Protected

A protected cell, which is the detail that matters most if you're not already deep into battery specifics: the built-in circuit guards against short circuits, so it's a safer default choice than a raw cell for someone using it in a single flagship flashlight rather than juggling multiple devices.

5000mAh capacity, 3.6V nominal, button top terminal for compatibility with lights that need the raised positive contact, up to 15A continuous discharge, and rated for 500 charge and discharge cycles.

Specifications

• 5000mAh, up to 15A discharge
• Button top, protected
• 3.6V nominal
• 500 charge cycles

A solid, low-drama choice for a power-hungry 21700 flashlight or a gimbal. The LiitoKala Lii-40A and XTAR 21700 RAW are unprotected cells rated for higher current draw.