If you need another mains charger because the old one is broken or you simply want to have a spare charger everywhere so you don't have to carry it with you, then you need this product. Its structure and functionality correspond to the 220 V mains charger provided in the phone's basic package. It has modern charging electronics. After charging the phone's battery, the charger switches to drip charging, thus protecting your battery from overcharging. ATTENTION: The charger can only be used for devices on the compatibility list!