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: 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. instruction * To Charge the battery for Microsoft Lumia 950 , allow the 2 metal pins on the charger to touch the 2nd and the 3rd contacts of battery. * For other batteries, it's not necessarily to be the 2nd 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)High Capacity 3500mAh Rechargeable Li_ion Battery: * Brand: Sporting Persistence . * Battery Type: Lithium Ion. * Battery Capacity: 3500 mAh. * 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) Folding Bracket: * Color: as shown in picture. * Material: durable& lightweight plastic. * Size: 5.2cm x 3.5cm. * Sits your Android Smart phones in a stylish way. * Creative 2-stage stand and adjustable design. * Suitable for your smartphone or tablet upto 8. * Miniature size, convenient to carry.
