You must be well equipped to enjoy camping! The Core rechargeable battery will be very useful for your outdoor activities and save you from having to carry multiple spare disposable batteries in your bag. Rechargeable in 3.5 hours with a USB-C port, the Core rechargeable battery is compatible with Petzl headlamps featuring the HYBRID CONCEPT design. Its high-capacity lithium-ion 1250 mAh provides excellent lighting performance, even at low temperatures. It recharges directly with the integrated USB-C port. Ideal for frequent to intensive use, the CORE 2 rechargeable battery is an economic, sustainable, and environmentally responsible solution.