Two-way fast charging large capacity mobile power charging bank Data: Battery capacity: 2000mah 5000mah 8000mah 10000mah 20000mah 30,000mA (optional) Input: 5V 2A Output: 5V 2A Power display: 3 4 5 (optional) Service temperature: Charging: 0 45 Discharge: - 10 60 Storage temperature :-20 to 60 degrees Celsius Strong compatibility: smart phones and tablet computer charging, compatible with USB DC-5V input of other digital products charging. Features: 1, multiple protection system, away from over-charge, over-discharge, over-voltage, over-current, short circuit, over-power and other threats. 2, cooling energy saving technology, effective protection of cell safety. 3. Passed FCC, CE, UN38.3, QI and other authoritative certifications. 4. Multi-port output, can be used at the same time, convenient and fast. 5. Logo. Color can be customized Advantage : We have our own factory and another factory cooperating with for many years, no matter your order quantity is large or small, high quality, fast delivery, cumbersome packaging and other production problems, we can timely solve. We look forward to contacting you and letting you experience how good our service really is!