Automatic polarity and condition sensing battery charger
Automatic polarity exchange circuit with current detection feedb
Battery charger
Battery charging system for portable electronic devices
Battery connection detection circuit
Battery detector
Charge and discharge control circuit and battery device
Charger capable of switching polarity
Charger connected to a load via a switching circuit to...
Disconnection detection device of assembled battery system...
Solarswitch
Using battery orientation to control mode of operation