Aug 25 2013, 02:10 PM
QUOTE
As you know, VXI= Power
Under 5ohm load, 4.93VX0.94A=4.6342Wh
Because of the measuring time is quite long, i take measurement on every half hour.
Total discharging time is 7 hours 20 minutes.
From calculation, i can get a total power dissipation of 34.13Wh,
the rated power is 41.44Wh ( 3.7V x 11200mAh)
34.13/41.44x100%= 82.36% is the real capacity
Under 5ohm load, 4.93VX0.94A=4.6342Wh
Because of the measuring time is quite long, i take measurement on every half hour.
Total discharging time is 7 hours 20 minutes.
From calculation, i can get a total power dissipation of 34.13Wh,
the rated power is 41.44Wh ( 3.7V x 11200mAh)
34.13/41.44x100%= 82.36% is the real capacity
i think u got it wrong with ur calculation,...
4.93VX0.94A=4.6342Watt , not watt hours,... = power
4.6342Watt x 7.33 hours = 34 watt hours...= actual energy used
rated energy suppose to be:
5V x 11200mAh = 56 watt hours (how come u use 3.7V when the actual output is 5V ??)
so the efficiency shud be only 34/56= 60.71 % instead of 82%
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