Universal Battery Chargers

Universal battery chargers for 21700, 18650, 18350, and 14500 lithium-ion cells, ready for everyday flashlight use and field-grade EDC kits. Each charger on this page handles smart charging — automatic chemistry detection, per-slot voltage termination, and over-charge / over-discharge protection — so you can safely top up protected and unprotected cells without babysitting the wall socket.

Pair these chargers with our 21700 batteries, 18650 batteries, or the broader batteries and chargers collection to build a reliable rotation for your high-output lights. Whether you need a single-bay travel charger or a multi-bay analyzing charger for cell matching, these picks ship fast from the U.S. with same- or next-business-day handling on in-stock orders — no overseas wait, just gear that earns its place on your bench.