Polarity-independent charger for battery detects polarity of connection between battery and charger using sensor circuit and feeds current out via negative output terminal to positive battery terminal if polarity is reversed

摘要

The charger (3) detects the polarity with which the battery (2) is connected to the charger using a sensor circuit. If the battery is connected with the incorrect polarity, the device supplies current via its negative output terminal to the positive battery connection and receives the current back into the charger via its positive output terminal.