jrnymn7 wrote:
That 11.9x volts; is that with or without loads, i.e; is that taking the peukert effect into account? And if so, how exactly does one determine how much peukert effect to account for, when it is an ever changing variable, based on actual soc?
That is with low loads, but I don't care if the actual intrinsic settled terminal voltage is 11.91 volts or 12.05 volts ... it's around/about/approximately time to charge with readings anywhere in that neighborhood - so I do it.
Remember, I've been doing this with these batteries for over eight years so subtle stuff like Peukert, over the long haul, is getting averaged out enough so as to be of no concern.
The most important thing I'm doing and didn't mention is that always - when in storage in our back yard - the batteries are kept on float except for very hot days. For long battery life it is of course very, very important that they be kept fully charged as much as possible. I can do this without solar in the RV because I'm not a long term no-generator drycamper so I travel with a couple of charging generators for varying situations, and have fast charging batteries (AGM, with low internal resistance) so that they also get brought up to full charge nicely by the alternator between campsites.
