Petzl Accu 4 Ultra Rechargeable Battery

Features of the Petzl Accu 4 Ultra Rechargeable Battery Large capacity rechargeable battery Offers maximum battery lifeLithium Ion Technology for excellent Performance at low temperatures Lithium Ion Technology for excellent Performance at low temperatures Energy gauge on battery allows user to be awAre of remaining battery life Rechargeable Lithium Ion battery 4000 mAh Integrated electronic protection circuit to prevent overcharging or completely discharging the rechargeable batteries Test button with power level indicator