Battery charger

Battery charging apparatus and method

Battery charging system that controls charging power using fourt

Battery life extending power-switching device for all-time opera

Battery powered electronic system with an improved power managem

Charger and integrated circuit having first and second...

Charging apparatus for controlling supplement of electric curren

Charging system and method

Dual A/C and D/C input powered portable battery charger

Dual-source CMOS battery charger

Method and apparatus for battery charging based on battery...

Method and apparatus for controlling battery charging current

Method in charging a battery powered device and apparatus...

Multi-power charger

Multifunctional complex power supply device

Power charging device using multiple energy sources

Power supply apparatus

Power supply system for vehicle

Power system for managing power from multiple power sources

Power system for managing power from multiple power sources