High-performance rechargeable battery designed for DUO RL and DUO S headlamps. It's durable and features quick connection to the headlamp and an energy gauge for monitoring the battery's charge level. Detailed description Lithium-Ion technology offers high capacity (3200 mAh, 7.4 V, 23.68 Wh) with reduced weight and excellent performance at low temperatures Energy gauge allows you to monitor battery charge level Quick connection system to rapidly install or remove the battery Rechargeable with the quick wall charger IP67 waterproof Partially compatible with the ULTRA RUSH and ULTRA VARIO headlamps: reserve lighting is not available Specifications Recharge time: 4 h Number of charging cycles: 300 Certification(s): CE, UKCA Watertightness: IP67 (waterproof in up to 1 meter of fresh water for 30 minutes) Weight: 168 g