HIGH CAPACITY: 1250 mAh Lithium-Ion battery guarantees high lighting performance for Petzl HYBRID headlamps, even at low temperatures. SIMPLE CHARGING: Charges directly via an integrated USB port (choose Micro-USB or USB-C version); charge indicator light shows battery status (Red = Charging, Green = Charged). HYBRID CONCEPT: Designed as a cost-effective, sustainable alternative to standard AAA batteries. Perfect for frequent users to save money and reduce waste. UNIVERSAL COMPATIBILITY: Compatible with all Petzl TIKKINA, TIKKA, ACTIK, ARIA, and IKO headlamps (Hybrid Concept models). LIGHTWEIGHT: Weighs only 23g, minimizing the weight on your head while providing reliable power for long adventures.