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 ...
Forum Discussion
I am just using the Wh to AH conversions where AH x V = Wh
Seems to me if 90AH is used up that should come out the same amount in Wh for a percentage of SOC, but I am asking if I am doing that wrong or what is going on.
I am told all LFPs use this same v/SOC table such as the one here for BB
scroll down to the table--it says 13.6 resting is 100%
https://1t1pye1e13di20waq11old70-wpengine.netdna-ssl.com/wp-content/uploads/2019/01/BB10012-2021-Spec-Sheet.pdf
for a 100AH batt, you run it down at 5 amps and in 20 hrs it is at zero capacity and 10.5v. Mystery how they can measure that way with a batt that is zero at 11.5v.
Seems to me if 90AH is used up that should come out the same amount in Wh for a percentage of SOC, but I am asking if I am doing that wrong or what is going on.
I am told all LFPs use this same v/SOC table such as the one here for BB
scroll down to the table--it says 13.6 resting is 100%
https://1t1pye1e13di20waq11old70-wpengine.netdna-ssl.com/wp-content/uploads/2019/01/BB10012-2021-Spec-Sheet.pdf
for a 100AH batt, you run it down at 5 amps and in 20 hrs it is at zero capacity and 10.5v. Mystery how they can measure that way with a batt that is zero at 11.5v.
