The active module includes Lithium ion battery cells grouped into cell packs to collectively produce about 10 kW of output power within 1 to 60 seconds. The cell support systems comprise a battery cell charger and cell monitoring electronics. The cell support systems combine about 8 kW of battery cell power and 2 kW of charger power to produce about 10 kW of output power within 1 to 60 seconds. The active module includes a first exterior housing wall and electrical connectors sealingly mounted in said first housing wall. The electrical connectors provide operative coupling for charging power input, engagement power output, CANbus diagnostics and Ethernet communications.

The Lithium ion battery cells are grouped into a first pair of cell packs and a second pair of cell packs. The cell support system include a first charger and a second charger. The first pair of cell packs are disposed between the first exterior housing wall and the first charger; and the second charger is disposed between the first exterior housing wall and the second pair of cell packs. The housing further includes a baffle in the active module between said first pair of cell packs and said second pair of cell packs dividing an interior space into two portions. The baffle is spaced from the first exterior housing wall to direct air to circulate from the inflow cooling fan towards said first exterior housing wall. One pair of cell packs is spaced and oriented so that an axis of the inflow cooling fan extends between the one pair of cell packs. The other pair of cell packs is spaced and oriented so that an axis of the outflow cooling fan extends between the other pair of cell packs.