PETZL CORE
The Petzl rechargeable battery is compatible with all Petzl headlamps featuring the HYBRID CONCEPT design.
High
 capacity 1250 mAh Lithium-Ion rechargeable battery for Petzl headlamps 
featuring the HYBRID CONCEPT design: 
Which is a feature on the newer TIKKID, TIKKINA, TIKKA, ZIPKA, 
ACTIK, ACTIK CORE, TACTIKKA, TACTIKKA + and TACTIKKA +RGB headtoorches.
It guarantees
 excellent lighting performance, even at low temperatures. It recharges 
directly with the integrated USB port. The CORE rechargeable battery 
offers an economical solution as the main power supply, or as a back-up 
battery.