Petzl Core Battery Power to the People Keep your headlamp powered up so you're never in the dark with the Core Battery, a high-performance rechargeable power source designed for Petzl's hybrid headlamps. This lightweight Lithium-Ion battery provides consistent power, charges quickly via USB, and offers a more sustainable alternative to disposable batteries. Whether you're on a multi-day trek or just need a reliable backup, this battery keeps your path lit for adventures that go all night. Features Sustaible alternative, eliminates the need for disposable batteries Fast charging via micro USB for quick and easy power-ups Consistent performance, delivers steady brightness throughout use Lightweight and compact, easy to carry as a backup Compatible with Petzl hybrid headlamps, including Actik Core, Tikka Core, and Swift RLMFG#: E99ACASPECIFICATIONSCompatibility Petzl hybrid-design headlamps Battery Type Rechargeable Lithium-Ion Capacity1250 m Ah Voltage3. 7VWeight0. 8 oz / 23 g Charging Method Micro USBRecharge Time3 hours | Petzl | Core