The calculation is (Whr*1000)/V=mAhrs. Therefore, based on the voltage you are drawing from the battery, you will get a different mAhrs value. Since there are different output voltages on this unit, EnerPlex cannot list it as mAhrs. Using this calculation, and the expected voltage draw of the phone (5V), you get 18,800 mAhrs. Divide by 2800 mAhrs, results in about 6.7 charges of your phone battery from this unit.
Date published: 2016-04-29