Abstract: A vehicle storage battery system having a storage battery with three integrally manufactured separate storage battery portions, a battery control and a switch for selecting between the operating states for the system. The storage battery has a main battery portion with a capacity sufficient for starting the engine of a vehicle under normal circumstances, a first standby battery portion and a second standby battery portion. The first and second standby battery portions when connected in series have a combined voltage and current output which is greater than the voltage and current output of the main battery portion when in a discharge state. The voltage and current output of the first and second standby battery portions each are less than the main battery portion when the standby battery portions are connected in parallel.

Abstract: A rechargeable emergency battery charging device for starter motor storage batteries. The device includes a plurality of rechargeable nickel-cadmium or sealed lead cells. A first circuit is provided which couples the cells in series for charging the storage battery and a second circuit couples the cells in parallel so they may be recharged from the storage battery. A switch means interconnects the two circuits. Charging and recharging current flow is regulated, and circuit functions are indicated by light-emitting diodes, and by a galvanometer. The device is provided with connecting means to couple it to an automobile storage battery via the cigarette lighter, or directly to the battery terminals. A further connector is provided for recharging the device from an AC source.