Note:This is an assembling kit of polar powerbank, NOT a finished one, you need to install it by yourself.This power band must work with 606090/909060/ 7565121polymer battery, battery is not included.Description:This is a DIY kit of portable solar powerbank with 20000mAh large capacity, which allows fast and safe charge for mobilephones. It can effectively convert the solar energy into electric energy and storein battery for all-day use. Over-charge, over-current, and short circuitprotection, fully protects your devices. Perfect for sport, travel, and otheroutdoor activities.Features:20000mAh large capacity, you can easilycharge for your phone anytime and anywhere without worrying about running outof power.Supports solar fast charge, safe and environmentalfriendly, suitable for sport, travel, and other outdoor activities.Provides dual USB ports, you can easilycharge for two devices at the same time, or share this backup power with yourfamilies or friends.Built-in single crystal solar panel,ensures fast speed conversion rate of solar to electric.Power saving, after fully charge for yourdevices, this power bank will automatically stop power output and enter thelow-power state.Safe for charging, fully protect your phonefrom overcharge, over-temperature, over-pressure, overload, and short circuit.Wide Compatibility, fully applicable tomost kinds of smart phones, tablets, for iPads, camera and other digitalproducts power supply by DC 5V.Specifications:Color: Green, Yellow, Orange, Black (Optional)Battery: 606090/ 909060/ 7565121 Polymer Batteries (NOT Included)Battery Capacity: 20000mAhUSB Port Quantity: 2USB Input: 4.2 - 6V/ 900 - 1200mAUSB Output: 5V 2.1A/ 5V 1A.Size: Approx. 161 x 79 x 17mmPackage List:1 x Solar Power Bank Case KitNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.Please note that this product has no waterproof function..