The Accu Duo Charger Kit is a High capacity rechargeable batteryfor the DUO LED 5 & 14 and comes with a quick charger. Features of the Petzl Accu Duo Charger Kit Ni-MH large capacity rechargeable battery: 2700 mAh (four elements) Maximum number of charges: approximately 500 110/240 V compatible quick charger: Recharge time: approximately 4 hours (with charge and end-of-charge indicator light) Comes with interchangeable standard European and North American wall charger Included: Ni-MH 2700 mAh rechargeable battery European and USA charger (110/240 V - 50/60 Hz compatible) Technical information