... Phone Battery Charger,Battery Charger,Universal Battery Charger,Mobile Phone Charger,Camera Batery Charger (MA-002)Features Auto-polarity ... 20V + /-50mV Charge fed automatically disconnected (ADFC) Battery failure auto-detection (ADBD) Short-circuit protection (SCP) Over- ... environments; When charging, the charger housing, the battery casing some tepid normal phenomenon; Disposable batteries ...