Card type device serving as supplementary battery and host...
Charge control device and battery pack employing it
Charge control device and battery pack employing it
Charger for portable terminal equipment having on-hook/off-hook
Charging device for commonly charging various kinds of battery
Charging/discharging apparatus and method, power supplying...
Check apparatus for camera capable of using one of different typ
Circuit and method for detecting absent battery condition in...
Conditional battery charging system
Control circuit apparatus and power supply circuit control...
Cordless power tool battery and charging system therefore
Cordless power tool with tool identification circuitry