@ DR99 - you are right with the 6.0Ah battery pack - but its just available in Europa. The weight difference is huge for example when I switch between 2Ah and 4Ah battery with my drill. Bosch says the 6Ah battery will be slighty the same weight as 3Ah; 4Ah and 5Ah battery packs. Bosch also has come out with a new multi-voltage charger that works with 14.4V, 18V, 36V battery packs, its twice as fast and half the size as bosch's previous 36v charger. the charging rate on the new charger is just 35mins for 18v 4Ah battery and 50mins for the new 6Ah battery. Lets see when they gonan release the new products for the US market