BFL13 wrote:
These refurb 27s act the same as my 27s did back when I had new ones. Same exact problem. Very hard to get the SG back up after a discharge to 50%.
I don't think it has to do with being new or used. However, a large number of RVers have 27s, so it makes me wonder how they ever get theirs charged back up---if they ever do.
Perhaps I am just not doing it right. Maybe what works so well with 6s and T-1275s does not work with 27s? So what does work?
I think the biggest thing is that they sit plugged into shore power between uses. Regular 27 dual purpose cant really be compared to 6's which are deep cycle. I was joking but in fairness you'd need something like real Trojan gp 27 deep cycle to compare to GC2 6's. Apples to apples.
I have four regular dual purpose 27's that are 2008, 20012, 2015 and 2016 but they dont get used the way you were testing them. They operate in the upper level and never discharged that low.