Suzuki Fumio, Takase Kiichi, Dwosh Jack D: Battery charging and exchange system for electric vehicle. Zip Charge, February 14, 2001: GB2353151-A (9 worldwide citation)

An electric vehicle 1 is powered by at least one cassette-type battery pack 2 (see figure 2) which can be exchanged once it becomes depleted at a battery vending station 300, 300' for fully charged batteries. The battery 2 is returned through port 303 and a fully charged battery is dispensed from po ...