Mixing Batteries on Float-- Mex Test Update 2
UPDATE 1 on 23 Dec post UPDATE 2 on 25 Dec post ---------- Mex is driving me crazy! He said do not mix my used 12s (Scrubber batteries, he calls them--humph! They are respectable golf car batte...
Forum Discussion
BFL13 wrote:
I have done some 10 hr capacity load tests on these T-1275s using their 20hr rate. Last time it took 9 hours to get down from full to 50% (as measured after the test using voltage and SG) and AH capacity came to 270ish out of 300 (by Trimetric) rated on the pair (150 each) so that would be 270/300 = 90%. (matches the 9hrs out of 10 too) 2.5 year old batteries.
Looks like I can float them and by that suffer antimony poisoning or else not float them and get sulfation setting in from their voltage dropping too fast (when SG catches up falling). The only way out of this is to do neither and just go camping and never come back! :)
Assuming your T1275's were 2 years old when you got them, and had what 400-600 or more charge cycles on them on golf carts, how much life can be expected at 90% or 80% capacity, in terms of recharge cycle from 40-90% with occaisional top off to full 100% float cycles?
From my perspective, if the T1275 I am to receive has 90%, that's still 135 AH and if 85% 127.5 Amp hours, still more than the group 24 75AH that's a year old now.
Does daily solar charging while camping mask or hide a lot of the losses between cells when you have one bad cell?
