2x 2980mAh Battery+Universal Charger+Winder for Samsung Galaxy Ace 2 Battery * Quantity: 2 * Brand: Sporting Persistence   Excellent quality battery For Samsung Galaxy Ace 2 * This battery has an integrated that   prevents overcharging and lengthens   battery life. * Cell type: Lithium Ion. * Capacity : 2980mAh * The battery operation time depends depends on conditions suchas:Transmitting   power level, Signal (distance between the   phone and the base station),Network   parameters base the operator. Universal Charger * Quantity: 1 * To Charge battery for Samsung Galaxy Ace 2   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. * Now you could plug in the charger with   the battery into a power socket. * The LED Light will turn Red when charging   the battery, turn blue to indicate the battery is   fully charged. Fish Bone Winder Silicon * Quantity: 1 * Flexible and washable if need . * Unique cable Silicon for organizing your   earphone cord * Compatible with Headphone Cable, Telephone.Cable, Mouse Cable,etc * Size: 6.4 cm x 2.8 cm Material: Silicone * Color:as shown in pictures.     Instructions: * This is an universal charger , which can charge virtually all   smartphone li-on batteries in the market. * 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. * You only need 2 pins to charge a battery.     Package Content:   * 2980mAh Battery x 2 * Universal Charger x 1 * Fish Bone Winder Silicon x 1 * ( Earphone not included ) Compatible with: Samsung Galaxy Ace 2 GT-I8160         *  This battery has the same dimension as your stock battery,    you do not need  a special back cover to use it