Battery Rating vs Capacity Monitoring
Some things: Shipping batteries in the US requires the Watt-Hour rating to be marked on the battery, and the rule is to use the "nominal" voltage. So LFP uses their 12.8v figure for that 100AH x ...
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You still seem to be assuming that the voltage is fixed - it is not. The battery monitor is measuring both the voltage and the current every second (or what ever its update rate is but let's assume 1s). Each update it calculates that you used 5A for 1s = 5/3600 Ah, which it subtracts from the Ah total. It also calculates that you used 5A at 13.6V = 68W (which it will display) and it subtracts 68/3600 Wh from the Wh countre. . It keeps doing this every second. After a few minutes it will be reading 5A at 13.3v = 66.5W in that second.
It is not calculating Wh from Ah, and it is not calculating W from SOC. It is measuring Amps and Volts and from this calculating Watts, Wh, Ah. It then arbitrarily displays this as SOC based on numbers you fed into the monitor at setup. I am not sure how else I can explain this.
It is not calculating Wh from Ah, and it is not calculating W from SOC. It is measuring Amps and Volts and from this calculating Watts, Wh, Ah. It then arbitrarily displays this as SOC based on numbers you fed into the monitor at setup. I am not sure how else I can explain this.
