The Petzl Core Rechargeable Battery Rechargeable battery compatible with Petzl HYBRID headlamps. High-capacity Lithium-Ion 1250 mAh rechargeable battery guarantees high performance lighting for HYBRID headlamps: TIKKINA, TIKKA, ZIPKA, ACTIK, ACTIK CORE, TACTIKKA, TACTIKKA + and TACTIKKA +RGB, even at low temperatures. It recharges directly with the integrated USB port. The CORE rechargeable battery offers an economical and sustainable solution as the main power supply, or as a back-up battery.