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...
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Resting or open circuit voltage provides a very reasonable estimate of SOC for lead-acid batteries, as the SOC vs Voltage curve is quite steep and fairly linear. Most every lead-acid battery manufacturer provides this data. This is not the case with lithium chemistries, and BB is the only company that I have seen provide a similar table, probably because folks coming from lead acid want to see this (even if it is not useful). For LiFePO4 the change in voltage with SOC is so small that it is often eclipsed by changes due to temperature.
I have been using LiFePO4 batteries in a series of campers since 2010 or so, and various lithium (and lead-acid) chemistries in various instrumentation professionally.
I have been using LiFePO4 batteries in a series of campers since 2010 or so, and various lithium (and lead-acid) chemistries in various instrumentation professionally.
