Safety: Our Products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) This Adapter is new replacement, not original Compatiblity: Battery Charger for NOKIA BP-4W BP4W LUMIA 810 T MOBILE 822 VERIZON US PLUG Note:please make sure the model of your device before buying Accessory USA Battery Charger for NOKIA BP-4W BP4W LUMIA 810 T MOBILE 822 VERIZON US PLUG