LFP battery absorption and float - report
Bought this 120AH LiFePO4 a while ago https://www.lynaclithium.com/wp-content/uploads/2022/03/12.8V-100Ah-True-Series-Quick-Sheet-USA.pdf. 120AH marketed as 100AH. Don't see this now but on the old...
Forum Discussion
time2roll wrote:Almot wrote:OK so I would expect the re-bulk to start about 30 minutes earlier each day if the state of charge was dropping each day.
Victron MPPT won't start Bulk charging again until it can't sustain 13.2 Float anymore - which is usually the last few minutes before sunset - doesn't make much difference.
As a result the battery was getting lower every day, with plenty of sun.
Didn't notice, not saying yes or no. With my very low draw any sun, even minutes before sunset, results in keeping the battery above 13.2. It has to drop below Float for at least a minute for Victron to start re-Bulk.
What I did notice was progressively lower pre-dawn voltage day after day, as witnessed both by checking voltage on the app before dawn, and Victron records of "minimum voltage" for each day.
