LifePo4 Charge Performance
Thinking seriously about replacing our two GC2's with a pair of 100ah LifePo4's. Hearing a lot of chatter about how lithiums accept a charge much quicker than lead cells. Very familiar with how ou...
Forum Discussion
pianotuna wrote:
Hi Steve,
The SiO2 specification is zero volts and over six hundred cycles to 80% of OEM capacity. Whether that is "puffery" or a real honest to goodness number, I do not know.
I don't know which site I found it on, unfortunately.
Soneil specs say you will get 620 cycles with 100% DOD, 1500 with 80% DOD etc.
Resting voltage at 100% DOD is 11.1v.
When I ran my test with 65 amps draw on the 100AH batt with inverter doing the MW in the TC (small MW with MSW inverter so amps not so many as with PSW) the inverter eventually alarmed at 11v, then the battery bounced back to 11.7v, which is 20% SOC/80% DOD.
I am not sure how the discharge table works, but seems to say that a 62 amp draw should take an hour to run the battery down and the "end-voltage per cell" would be 1.6v so x 6 = 9.6v I didn't run the battery down that far. ( ISTR I got over 30 min of MW run time before it alarmed, but don't have my notes on that)
So "end-voltage" is not the resting voltage for 100% DOD? You would get bounce back from the end-voltage to go up to the resting voltage?
That's way better on one 100AH batt than with regular AGMs, and why I got the battery. LFPs can do that too or even more so, but I had no need to spend twice as much for an LFP, and I was nervous about the low temp issue for our scenarios.
