Charging a Battery Bank
I am planning on upgrading my batteries to 4 6v batteries wired in series and parallel to have a 12v system with plenty of Amp Hours. There is a ton of information on how to wire things up but nothing...
Forum Discussion
BFL13 wrote:
I don't need TC for the temperatures I camp in (32-90F) It is more critical for extreme temps. I do adjust my voltages up for cold temps --one of the advantages of the adjustable charger. At 35F, I set 15.2 as equivalent to 14.8 and it does the same charging profile as at 14.8 at 77F so that works right.
Those AGM specs show a range of acceptable voltages, so if your charger is in the middle, that gives you some wiggle room too. TC is getting pretty fussy for RVing. More a thing for stick house solar IMO. YMMV
And yet East Penn makes it clear that temp compensation for any of their AGM batteries is mandatory, not only putting a label to that effect on each battery but also saying on Page 2 in this East Penn VLRA Technical Manual - "The charger must be temperature-compensated to prevent under or overcharging due to ambient temperature changes." Further, on Page 11 is a chart for recommended AGM Charge and Float Voltages at Various Temperature Ranges which shows a considerable variance in the range of temperatures you mentioned. Despite your conviction temp compensation isn't that much of an issue for RVrs I have to believe East Penn knows what they're talking about so if the option to charge with temp compensation is available that certainly seems like the best course to me.
