Charges the 18 V/2.5 Ah Karcher Battery Power exchangeable battery to 80% in 44 minutes Charges the 18 V/5.0 Ah Karcher Battery Power exchangeable battery to 80% in 94 minutes Compatible with all batteries on the 18 V Karcher battery platform Thanks to the integrated wall bracket, the fast charger can be fixed to the wall very easily Made from durable material, with overheat protection for extra safety