LifePo4 Voltage at .5C - .6C Discharge
Our two GC2's (with 100% charge) drop below 12v while under a 100a - 125a load. When they reach 50% (at 100a - 125a), voltage drops into the low 11's while under-load. What kind of under-load volt...
Forum Discussion
Whatever the V/SOC on the almost flat curve, the OP wants to know how low he can go and still run the 100a load before voltage crashes.
We seem to all agree he wants the 100a run to end at about 15% SOC, so when can he start? 100a for 10 minutes is 16.7AH so 15AH +16.7AH is still 31.7AH = 32% SOC.
Somehow or other you have to be able to tell your SOC so you can tell if you are below 32% in this example. If voltage doesn't tell you, then AH counting is needed.
FWC is saying BB's voltage/SOC table is bogus. It looks pretty flat along the mid-range. Whatever.
Note that the inverter alarm and shut-down uses voltage. You need to have some idea what the voltage is per SOC so you can figure what the inverter will see, while you are using SOC.
We seem to all agree he wants the 100a run to end at about 15% SOC, so when can he start? 100a for 10 minutes is 16.7AH so 15AH +16.7AH is still 31.7AH = 32% SOC.
Somehow or other you have to be able to tell your SOC so you can tell if you are below 32% in this example. If voltage doesn't tell you, then AH counting is needed.
FWC is saying BB's voltage/SOC table is bogus. It looks pretty flat along the mid-range. Whatever.
Note that the inverter alarm and shut-down uses voltage. You need to have some idea what the voltage is per SOC so you can figure what the inverter will see, while you are using SOC.
