DayZ field wiki · Gear
Batteries
The other ammo
Short answer
Lights, NVG, rangefinders, radios. A dead brick is a paperweight.
Also: 9v · battery
How it works
9V and others exist. Devices die. This is not a mAh table.
What to do
Spare in the pouch. Swap before the night walk.
Don't
Don't leave the only battery in a flashlight you dumped.