1
Phillip D Hutchings: Universal battery charging system and a method. Power Tech Systems Corporation, Rogers & Killeen, September 17, 1991: US05049804 (94 worldwide citation)

A universal battery charger and recharger for electric batteries having different charging characteristics. The battery charger includes a microprocessor receiving inputs from current, voltage and temperature sensors for controlling the battery charging profile. A replaceable memory may be included ...


2
Phillip D Hutchings: Universal battery charging system and a method. Power Tech Systems Corporation, L Lawton Rogers III, Joseph M Killeen, June 27, 1989: US04843299 (73 worldwide citation)

A universal battery charger and recharger for electric batteries having different charging characteristics. The battery charger includes a microprocessor receiving inputs from current, voltage and temperature sensors for controlling the battery charging profile. A replaceable memory may be included ...