Quote:
Originally Posted by Volt_Ampere
Given the voltage variation with temperature and cycle history, trying to measure SOC by voltage is not very useful with lifepo4 batteries. You need to count electrons.
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Tough to do for sure. Would you say it is more accurate to measure SOC by remaining Ah instead of voltage? It appears to be fairly consistent in my mileage log. Voltage has been all over the place but SOC and Ah are more predictable.
I rode 29.25 miles today and had ending Ah of 28.4. So I used 43.6 Ah which approximates to 1.49 Ah per mile. This has been pretty consistent in 10 logged rides of over 8 miles. 1.42 to 1.60.
Variations may be due to average speed. Faster average speeds seem to have used more Ah per mile. Temperature has been between 65 and 90 however which may throw everything off.