HI Support team
My customer is asking the following question Can you help answer this :
The z100 data sheet includes the following descriptions of AvailableEnergy and AveragePower:
7.3.2.5 AvailableEnergy(): 0x24/0x25
This read-only command pair returns an unsigned integer value of the predicted charge or energy remaining in
the battery. The value is reported in units of mWh.
7.3.2.6 AveragePower(): 0x26/0x27
This read-word command pair returns an unsigned integer value of the average power of the current discharge.
A value of 0 indicates that the battery is not being discharged. The value is reported in units of mW.
When I log z100 data, Available Energy is not simply the reported Remaining Capacity in mAh times the reported voltage. It does not appear to be referenced to a single cell either. It is something different. For example this is z100 data taken from a 7S battery. One data set during Charge and one during Discharge::
Rem Cap (mAh) Voltage (mV) Current (mA) AvailableEnergy (mWh) (Voltage/7)*Rem Cap AveragePower (mW)
8646 29365 829 31786 36269 (Not 31786) 3478
2980 24934 -3407 9853 10615 (Not 9853) -12136
I want to get an understanding of how AvailableEnergy is calculated so I can use it properly in a system.
Many thanks
Jeff