Battery e.g. lithium-ion battery, for supplying portable electric apparatus, has commutator controlled for automatically disconnecting self-discharge circuit in preset charging state lower than rated charging state of battery

摘要

The battery has a self discharge circuit (4) including an activation element and a resistor element (5) connected to external connection terminals (3) of the battery via a commutator (6). The commutator is selectively activated in a connection state or disconnection state of the self-discharge circuit. The commutator is controlled for automatically disconnecting the self-discharge circuit in a preset charging state lower than rated charging state of the battery.