You do not need a special back cover to use this battery This package is specifically designed for the cellphones we list here, if your cellphone is not in the list , then it's not for you. 1)Universal USB/AC Charger: * This is an universal charger, the top panel could be slided and the metal contact pins are also moveable. * You can slide it back and forth to fit virtually any size of Li-On batteries in the market. * Please see our Title pictures for detail * Here is the instruction * To Charge the battery for LG B470 ( AT&T ) , allow the 2 metal pins on the charger to touch the 1st and the 3rd contacts of battery. * For other batteries, it's not necessarily to be the 1st and 3rd though, please refer to the user manual. * You should see the LED light turn blue on the charger, that means the contacts has been firmly connected. * The LED Light will turn Red when charging the battery, turn blue to indicate the battery is fully charged. 2)New 1350mAh Li_ion Battery: * Brand: AceSoft . * Battery Type: Lithium Ion. * Battery Capacity: 1350mAh . * Voltage: 3.7V. 3)Night Glowing Dual USB Car Charger: * Input Voltage:12V or 24V DC * Output Voltage & Current: * Port 1: 5V 2.1A * Port 2: 5V 1.0A 4)Micro USB Data Sync Cable(3 Feet/1M): * Type: USB 2.0 * Charging your Cell phone by connecting this charging cable to our Wall charger or USB car charger. * Provides data transfer, syncing functions in between your cell phone and your PC or laptop via USB port. 5)Screen Touch Pen * Soft touch tip material prevents scratching to.the screen very smooth tip * suitable for drawing,jotting notes,playing games and navigating on your device. * Lightweight copper body