Petzl CORE 2 Rechargeable Battery Sleeve Eterna Navigator 3 comes with

Eterna Navigator 3 comes with an illuminated built-in compass

This means that water boils faster and fuel lasts longer

Free global offline maps for on-wrist navigation

An easy to use

Self-stuffing chest pocket with carabiner clip-in loop

Petzl CORE 2 Rechargeable Battery Sleeve Eterna Navigator 3 comes withRechargeable 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 (charging cable not included). Ideal for frequent to intensive use, the CORE rechargeable battery is an economic, sustainable, and environmentally responsible solution.