The conversion efficiency of mobile power supply is defined as the ratio of actual output energy to rated energy of battery core, and the algorithm is as follows:

Conversion efficiency = (output voltage * output capacity)/(battery rated voltage * battery rated capacity)

2. According to SGS test data, the conversion efficiency of 5200mAh millet mobile power supply is as follows.

Conversion efficiency = (output actual voltage * output actual capacity)/(battery rated voltage * battery rated capacity)

Input rated voltage: 3.6V

Input rated capacity: 5200mAh.

Actual output voltage: 5.1v.

Actual output capacity: 3206mAh

Then the conversion efficiency is: (5.1* 3206)/(3.6 * 5200) = 87.3%.

The output current under the test condition is 600 mA.

3. According to the test data, when the constant current output is 1.5A, the conversion efficiency exceeds 83%.