Ten thousand mah charging treasure, full of a charge needs about 0.05 degrees of electricity, and the current electricity charge is 0.55\/ degree, which means that it needs about 3 cents.
< br >
10,000 mah charging bank, charging voltage 5 volts, full 5 hours, voltage * current = power, charging power: 5V*2A=10W; Charge for 5 hours: 10W*5 hours =0.05 KWH =0.05 KWH
About 1.5 KWH in total.
< br >
10400mah is 10400 MA =10.4 amps, if the charging rated voltage is 24 volts. The charging energy can be 10.4 ampere-hours ×24 volts =249.6 volt-ampere hours =0.2496 KWH =0.2496 degrees of electricity. That is, 10400mah can charge 0.2496 degrees of electricity.