Floureon External Power Case Battery for iPad Mini 7.9" tablet 3.7V 10000mAh 37Wh Li-Polymer Black Charge your iPad Mini preferentially when USB DC input wire connected to the 5V power source for charging. After the iPad Mini being full charged, changing to recharge itself automatically. Choosing the priority to charge itself, iPad Mini or your cell phone by pressing the button. Unique two function in one model design! Portable high capacity battery charger for your iPad Mini and the high quality case protects it well. Meanwhile, it can charge for your any cell phone, iphone, GPS and so on. Multi Protective Function: Over charge and over discharge protection, over load, over current and short circuit protection. Power Off automatically. Battery Type: Li-ploymer battery Band: Floureon