BFL13 wrote:
Some graphs here of interest. Scroll down. One has the Absorption SOCs for some lower C rates.
These guys seem to have a clue, lots of interesting (IMO) posts on some of the things being discussed here.
https://forum.solar-electric.com/discussion/351996/charging-lfp-lifepo4-batteries-to-90-soc-or-not
Im not sure I like the way they call charging to 100% overcharging, its not. overcharging is when you exceed the voltage that gives you 100% charge.
I just spent the last 10 days on the island and never got below 96% and was back up to 100% before 9am every day. I have no issues going to 100% on my solar charger as I am camping and it is always drawn down that night so in my mind I am not storing it. the last day I turned off my panels and left it at 97% and turned a light on for the entire drive from pender Island to kamloops, was 96% when I got home :R but I'll leave it there till the night before I go camping again and top it off, or if I have a deicent drive I will just leave it and turn the solar on so it charges while I travel. I have my solar charger set to 14.4V charge and 13.6 float and so far I am very impressed with the setup.