Petzl Core Battery PackRechargeable battery for Petzl headlamps featuring the HYBRID CONCEPT design: the TIKKID, TIKKINA, TIKKA, ACTIK, ARIA, and IKO. 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 rechargeable battery is an economic, sustainable, and environmentally responsible solution.