Lithium batteries and new solar charger
I am replacing my 4 6V batteries I think 2 lithium, have never been impressed by the 30A PWM charger for my 600W solar, probably my fault for using 8 avg wire on a 9m run. Thinking if I get a Victron ...
Forum Discussion
1) 14.4-14.5 not sure, check your LFP specs. Full LFP would be ~13.5V. No, floating 13.8 is not needed, charging should stop when you hit whatever it says for 100% charge on LFP specs. You may set Float below what your LFP "full" voltage if your controller allows.
2) Yes, charge 100% "often", for balancing. The jury is still out on how often it should be. You don't want to shorten its life by overheating but you also don't want to leave cells unbalanced. Do 95% if you can.
3) Voltage at rear 7-pin plug? 13-something, doesn't matter because you shouldn't use this for charging LFP directly. You should install DC-DC charger between alternator and LFP.
2) Yes, charge 100% "often", for balancing. The jury is still out on how often it should be. You don't want to shorten its life by overheating but you also don't want to leave cells unbalanced. Do 95% if you can.
3) Voltage at rear 7-pin plug? 13-something, doesn't matter because you shouldn't use this for charging LFP directly. You should install DC-DC charger between alternator and LFP.
