21700 5000mAh Battery USB-C Rechargeable

Not whole batteries are created equal, and this 5000mAh 21700 is an absolute beast for power-heavy torches. The built-in USB-C port is super convenient since you can plug it straight into a cable without bringing a bulky dedicated charger. With a massive 15A continuous discharge, it easily feeds high-drain monsters like the L35 2.0 or L19 without throttling. The built-in anode protection gives great peace of mind against overcharging or short circuits when swapping cells. Honestly, if you run compatible Acebeams, picking up a couple at the bulk price is a no-brainer backup upgrade.

This high-drain 5,000mAh cell delivers the massive amperage needed to sustain high-output Turbo modes while offering the convenience of integrated USB-C charging. It is a rugged, protected essential that ensures your high-performance lights never falter when you need them most.

Holy crap, this 21700 with built-in USB-C is a game-changer in my Defender P17, it handles those insane tactical bursts like a champ! Protection circuit is rock solid, no worries about overheat or shorts even when I'm hammering turbo modes outdoors. Charging right in the P17 with USB-C cable? Genius, no fumbling with chargers in the field. Already at 100+ cycles and still going strong!!!  Runtime on P17's workhorse modes absolutely crushes standard cells. It is power in one badass package

I’ve basically switched over to using only these Acebeam 21700 USB‑C batteries now and don’t even bother with a separate charger anymore. The built‑in USB‑C port makes topping them up as easy as charging a phone, and the 5000mAh capacity with up to 15A discharge current is more than enough for all my flashlights. With the integrated protection circuit against short circuit, overcharge, over‑discharge, and overheating, plus a rated 500 charge cycles.....basically all I need