Hi,
Consider this snapshot of a 12V lead acid battery during discharge at constant power load of -1502 mW. Learned Status = 6, and was learned using the exact same battery.
Voltage 12600
Remaining Capacity 6300 mAh
Average current -716 mA
Average Time To Empty 528 mins
Available Energy 14918 mWh
Average Power -1502 mW
IT Config: Load Mode =1, Load Select = 3
Despite the Load Mode being constant power, it appears that the Remaining capacity is being calculated using a constant current of 716mA.
(6300/716)*60=528 mins
My load is constant power, so as the voltage drops the current will increase. From experience I know that by the time the voltage drops to 11V the current will be around 830mA. So either Remainig Capacity or Average Time to Empty has to be wrong.
Also Available Energy / Average power gives a very different result for calculating Time To Empty. (14918/1502)*60=595 mins
These figures are a mess and I don't know what to believe. Any Idea why? How is Available Energy calculated?
Thanks.
