Key Specifications Special Features:Portable charger plugs into lighter outlet Charges battery when phone is not in use Intelligent IC chip inside recognizes a full battery and automatically switch to a saver to prevent overcharging. Connects directly to the bottom of the cell phoneRegulated power supply ensures a safe quick chargeCE and UL CertifiedModel Compatible: Samsung A630 A645 A850 A870 A930 A950 A970 A990 U340 U520 U540 U640 Type: Charger & Adapter Compatible Phone Manufacturer: Samsung