... 3) Built-in 20000mAh high capacity rechargeable Li-Polymer battery .4) 20000mAh capability, powerful with long operation time.5) be ... efficiency of power conversion.8) Electricity-saving function.9) With 4 LED power indicator.10) Partable, practical and long cycle ... -Polymer2) Input Voltage: DC 5.0V3) Input Current: 1000mA (Max)4) Duo USB output, charge 2 devices simultaneously5) Output Voltage (Port ...