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
One more comment on the Paramode. I don't like that the Volts are capped at 14.4. I believe that is what you see in your(in)famous hand drawn chart, even when you dipped the sensor in ice cream. A proper TC charger would have made the adjustment above 15V. You are correct in using 15+Vabs to manually adjust for battery temperature.
RobWNY;
Here again is a situation where I rely on a solar controller with a battery temperature sensor(BTS) to finish the job. In Nov 2015 I awoke to 6F outdoors. With the TT parked in the driveway, the solar controller reached a high of 15.45Vabs. Even with the WFCO plugged in overnight, the controller goes ahead and cycles through its charge stages.
HTH;
John
