The spare Lithium-Ion 1800 mAh rechargeable battery guarantees high performance for the REACTIK and REACTIK + headlamps, even at low temperatures. It recharges directly with the integrated USB port.
Simple universal charging via the micro USB port Charge indicator on the battery Indicator light for remaining burn time Blue strobe LED when Bluetooth® Smart mode is on (for REACTIK + only) Performs well at low temperatures Weight: 55 g Certification(s): CE, FCC, IC, ARIB Type: batterie rechargeable Lithium-Ion 1800 mAh Recharge time: 4,5 h Number of charging cycles: 300