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
BFL13 wrote:
(They don't want you to adjust for temp when doing the actual charging to get the batts up in SOC though. Stay at 14.6 or less whatever they say for Vabs, since colder temp comp would make that higher in voltage--14.6 is 15.2 or whatever near freezing, and that temp comp would put you over the max of 14.6 right there.
So no temp comp when using 14.x. Temp comp should be ok with 13.x ? Don't know, but to play it safe IMO stick to about 13.5v no matter what and you should be good.
thats right, the only temp comp you should use is a cutoff and if you want to get fancy a amp limiter, but it has to remain constant voltage.
that way you could set a max charge rate at colder temps and charge all the way down to -20. it would be painfully slow and dont know if it would be worth it, but you could do it.
Steve
