It is inconvenient to take your battery charger along with you every day. Don’t worry， with this Backup Battery for Samsung Galaxy S4， you can charge your cell phone at anytime anywhere. This high capacity universal battery is small enough to fit in the palm of your hand， yet provides effective power. It is ideal for long flights and business trips. Super convenient built-in micro-USB charging plug frees you from carrying any extra cables when you’re on the go; Supply instant power to charge your device anytime， anywhere!                                    Features            Supply instant power to charge your device anytime， anywhereMatching Samsung GalaxyS4 style design， thin and coolSlim and stylish design， portable to carryWith back clip design， it brings you much convenienceLED indicates charge level                                                            Specifications             Dimensions     5.75 x 2.87 x 0.59" / 14.6 x 7.3 x 1.5 cm (L x W x H)    <br> Weight     3.84 oz / 109 g    <br> Color     White    <br> Capacity     3200mA    <br> Output Voltage     5V    <br> Output Current     0.5A    <br> Input Voltage     5V    <br> Input Current     0.5A    <br> Charging Time     About 5 hours    <br> Compatible with     Samsung Galaxy S4     <br>                                                             Package Includes            1 x Backup Battery<br>