Note: _x000D_ This is an assembling kit of solar power bank, NOT a whole power bank, you need to install it by yourself. _x000D_ This power band must work with 606090/ 706090 polymer battery, battery is not included. _x000D_ Please fully charge this power bank before first using it. _x000D_ _x000D_ _x000D_ Description: _x000D_ This is a DIY kit of portable solar power bank, which allows fast and safe charge for mobile phones. It can effectively convert the solar energy into electric energy and store in battery for all-day use. IP6 waterproof design, fully protects your devices. Equipped with a compass, suitable for sport, travel, and other outdoor activities. _x000D_ _x000D_ Features: _x000D_ Works with 2pcs 606090 or 706090 polymer batteries, 8000mAh or 10000mAh large capacity is easy to obtain, you can easily charge for your phone anytime and anywhere. _x000D_ Supports solar fast charge, safe and environmental friendly, suitable for sport, travel, and other outdoor activities. _x000D_ Provides dual USB ports, you can easily charge for two devices at the same time, or share this backup power with your families or friends. _x000D_ IP6 waterproof protection and printed circuit board assembly, fully protect your devices from water, overload, overcharge, overheat and short-circuit while charging. _x000D_ Environmental friendly and power saving, automatically enter sleep mode and lock the power while not in use. _x000D_ With a mini precise compass, never worry about losing your way. _x000D_ Dual high brightness lights, you can use it for lighting at night. _x000D_ With a metal hook, only need to hang this solar charger on your bag for power storage, release your hands free. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Material: Plastic + Silicone _x000D_ Color: Black + Blue, Black +Green, Black + Black, Black + Orange (Optional) _x000D_ Battery: 2 PCS 606090/ 706090 Polymer Batteries (NOT Included) _x000D_ USB Port Quantity: 2 _x000D_ USB Output: 5V 1A/ 2A _x000D_ Power Capacity: 8000mAh/ 10000mAh _x000D_ Waterproof: IP6 _x000D_ Size: Approx. 138 * 76 * 20mm _x000D_ Package Weight: 80g _x000D_ _x000D_ _x000D_ How to Use:_x000D_ _x000D_ 1. On the circuit board, B- is connected to the negative electrode of the battery, and B+ is the positive electrode of the battery. Pay attention to the difference between the positive and negative electrodes. Generally speaking, the red wire is the positive electrode and the black wire is the negative electrode. Weld the positive electrode to the positive and negative terminals of the battery control board. Connect the negative terminal of the battery control board. Do not connect reversely, it will burn out the board. If the battery is soldered in parallel, when assembling the battery, pay attention to the insulation between the battery and the circuit board. Do not touch the battery lead to the circuit board to avoid short circuit or touch Electricity caused the final loss!_x000D_ 2. S-on the circuit board is connected to the negative pole of the solar panel, and S + is connected to the positive pole of the solar panel. Pay attention to the difference between the positive and negative poles. Generally speaking, the red wire is the positive pole and the black wire is the negative pole. Don't connect it reversely, it will cause the solar panel to not work properly._x000D_ 3. The red wire of the terminal wire is connected to the + pole of the LED light board, and the black wire is connected to the-pole of the LED light board. Pay attention to the difference between positive and negative poles. Don't connect it backward, it will cause the light board not to light up._x000D_ 4. As for the polymer battery, you generally need to manually weld the power cord by yourself. Pay attention to the welding position of the power supply positive and negative poles on the battery control board, and locate the positive and negative poles of the battery. When soldering, it is best to put on an electrostatic wristband before soldering to avoid damaging the electronic components of the battery control board due to induced electricity. After the welding is completed, check the product quality. After confirming that it is correct, you can use a for Phillips screwdriver to cover the mobile power box, tighten the screws, and the assembly is complete._x000D_ _x000D_ Package List: _x000D_ 1 * Solar Power Bank Case Kit1Works with 2pcs 606090 or 706090 polymer batteries, 8000mAh or 10000mAh large capacity is easy to obtain, you can easily charge for your phone anytime and anywhere. 2Supports solar fast charge, safe and environmental friendly, suitable for sport, travel, and other outdoor activities. 3Provides dual USB ports, you can easily charge for two devices at the same time, or share this backup power with your families or friends. 4IP6 waterproof protection and pr