Fast charger for 18V Erbauer EXT and EXT EliteCell batteries. Compatible with 2.0Ah, 4.0Ah and 5.0Ah EXT batteries and 4.0Ah EXT EliteCell battery. Charges 2.0Ah EXT batteries in 30mins, 4.0Ah in 50mins and 5.0Ah in 60mins. Charges the 4.0Ah EXT EliteCell battery in 55mins. Part of the Erbauer EXT one battery system, running multiple tools for increased flexibility.