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. ====================================================================== 100% Brand New. 1)Universal USB/AC Charger: * To Charge battery for LG , allow the 2 metal pins on the charger to touch the 1st and the 3rd contacts of battery. * For other batteries, Please refer to battery user manual to check which pins to be connected, contact points would vary on different batteries. * You might also want to flip over the battery and try different contacts on the battery. * You should see the LED light turn blue on the charger, that means the contacts has been firmly connected. * Now you could plug in the charger with the battery into a power socket. 2)AceSoft 2550mAh Rechargeable Li_ion Battery: * Brand: AceSoft. * High quality Li-Ion battery. * Battery Type: Lithium Ion. * Battery Capacity: 2550mAh . * Voltage: 3.8V. * The best spare battery for your phone. * Our battery is sent out with little or no power, so please charge it for about 6 - 12 hours before using. * Keep an extra battery on hand for extend standby and talk times. * Integrated microchip prevents overcharging and lengthens battery life. * This Battery could also be charged in the phone directly thru the cell phone charger. 3)USB Data Sync Charging Cable(1M / 3 Feet ): * New generic 2 in 1 Data/Charging USB Cable. * Charging your Cell phone by connecting this charging cable to our Wall charger. * Provides data transfer, syncing functions in between your cell phone and your PC or laptop via USB port. 4)Screen Touch Pen: * suitable for drawing,jotting notes,playing games and navigating on your .