PRO GAL 12V/18V-80 Batteries & chargers | Simple and convenient, one charger for all your 12V and 18V Bosch Professional batteries, Fast charging with 8A charging current that fully charges an 18V 5.5Ah in 46 and a 12V 4.0Ah in 37 minutes, Reduces downtime with the intelligent Active Air Cooling 3.0 by cooling down the battery prior to, during, and after charging, Practical and compact thanks to bay-in-bay solution