SolarSkin Solar Battery Case iPhone 6 & 6s with Detachable Battery and Solar Panel One of a Kind  The SolarSkin is the only battery case that has a detachable battery and integrated solar panel. Flexible and Functional  Detach the battery and charge it separately while youre on-the-go. The SolarSkin is a fully functioning case while the battery is detached, so you can charge your external battery for later without sacrificing protection. Charge Your Way  With 2 micro USB inputs and a solar panel charger, you can charge your phone while the battery takes in sunlight, or charge both the phone and external battery separately, no problems. Long Lasting Power  With 1500 mAh of extra battery capacity built in, you can nearly double your phones battery life. Quality Convenience  The case alone is made with TPU and polycarbonate, married to offer industry-standard protection. The battery has LED indicators to know when youre charging and how much battery power remains.