Battery Question
Hi, I have a bunch of questions about batteries, invertors, charging, solar panels, etc. So I'll start off with batteries... My TC came equipped with 2 Interstate Marine/RV Deep Cycle SRM-27 b...
Forum Discussion
FWC wrote:
There is no physical reason that LiFePO4 batteries can't be discharged below -20C. I don't pre-warm them in any way, just use them. They are generally rated for -20, because they only test to -20C because 99.9% of their customers don't care about performance below -20C. However, some manufacturers do test down to lower temperatures and while they loose capacity at low temperatures, it is not nearly as bad as many battery chemistries:
interesting, at -30 they have more capacity available than SIO2 (80% Vs 60%) first time I have seen a chart that shows preformance below -20.
is there a corasponding chart that shows if there is a impact on cycle life when used at these temps or if the amprage (flow) is impared?
Nevermind, I just saw that was at a 9 amp discharge. more than enough to run a furnace.......
Steve
