LARGE CAPACITY. Built in Eco-friendly 20000mAh Li-Polymer battery, work with all iPhone/iPad/Tablets, other cell phones and electronic devices. Automatically adjust the output power to deliver the optimal charging current, to prevent your devices from overcharging, and short circuiting. Ideal choice for day-to-day duties, hiking, camping trips or other outdoor activities.
Portable & User-Friendly. Handy compact solar charger, similar to a smart phone. You can put it in backpack or even your pocket while charging your phone.