Other Batteries

Airsoft isn't just AEGs. A modern speedsoft rig might have eight to ten things that take batteries — the rifle, the secondary, the speedloader, the tracer unit, the primary optic, the backup iron-sight illuminator, the comms headset, the watch. Each of those needs its own power source, and most aren't LiPo or NiMH stick batteries. This collection covers everything else.

Common items here: 9V PP3 batteries for older tracer units and some FCUs (the rectangular battery with snap connectors on top — still the standard for many tracer designs). CR2032 and CR2025 button cells for red dot sights and reflex optics. AA and AAA cells for electronic speedloaders, Vanguard Mk2 backups, comms headsets, and the bulk of tactical accessories. 18650 Li-Ion cells for high-drain devices and some HPA electronics — these look like AA cells but run at 3.7V and require dedicated chargers; don't substitute one for the other.

Two warnings worth knowing. First: lithium primary cells (CR123A, CR2, and similar) are not the same as lithium rechargeables despite looking similar — primary cells are higher voltage and will damage devices designed for rechargeables. Always check the device's manual before substituting. Second: button cells stored in shared bags or pockets with coins or keys can short-circuit, heat up, and rupture — store them in their original packaging. For everything battery-related you can't find here, see LiPo, NiMH, or chargers.