Note that lumen output reduces as you work your way down through the backup battery options, but you’ll stay up and running, and that’s what matters most. If you don’t have the time or a place to recharge, just swap out the rechargeable battery for a CR123A disposable cell or a common AA battery, with no special adapter needed. The Sentinel ships with a 16340 lithium-ion rechargeable battery that powers the light to a potent 400 lumens of output.
There’s no such thing as having too many backup options on the street, and that includes backup power for your flashlight.
