Trojan t-1275 vs Signature series J150 RE
Before winter, I need to get a dedicated flooded house battery, my Northstar AGM-27 has been working hard as both house and engine battery for the last 4 months, and I want to return it to engine star...
Forum Discussion
In support of my suggestion for LY to use a T-1275, some data.
I found my old notes on recovering the T-1275s after getting them from the golf car people in 2013 (they were new in 2011) I will show each battery SG from pos to neg, with the battery numbers 4 and 1 as marked on them.
I deducted 0.005 from all the actual new readings, because they were taken with the fluid below the split rings but above the plates, where the older SGs were with the fluid up higher. Eg, when I got 1.300 this time, I show 1.295.
First set of SGs (A.) is from after recovery ( by late 2013) in March 2014 and second set (B.) is from a few days ago.
Battery 4
A. 1.280, 75, 70, 90, 75, 75
B. 1.295, 80, 75, 95, 95, 95
Battery 1
A. 70, 70, 90, 75, 75, 75
B. 80, 80, 95, 80, 80, 75
(When I first got them, their SGs were stuck in the 1.250-65 range when "full")
So IMO this shows something good about T-1275s, especially the way mine get used.
I have not been able to equalize their SGs. I don't have a charger that can do over 15.7v. Mex says there is a world of difference by going just a little higher to 16v. (the Trojan spec for equalizing T-1275s is 15.5 though.) They may just be too beat up from the golf car days to ever get equal SGs. They load test ok, getting 90% of rated after recovery (270AH achieved of 300AH rated as a pair) Haven't done a load test lately to compare.
I found my old notes on recovering the T-1275s after getting them from the golf car people in 2013 (they were new in 2011) I will show each battery SG from pos to neg, with the battery numbers 4 and 1 as marked on them.
I deducted 0.005 from all the actual new readings, because they were taken with the fluid below the split rings but above the plates, where the older SGs were with the fluid up higher. Eg, when I got 1.300 this time, I show 1.295.
First set of SGs (A.) is from after recovery ( by late 2013) in March 2014 and second set (B.) is from a few days ago.
Battery 4
A. 1.280, 75, 70, 90, 75, 75
B. 1.295, 80, 75, 95, 95, 95
Battery 1
A. 70, 70, 90, 75, 75, 75
B. 80, 80, 95, 80, 80, 75
(When I first got them, their SGs were stuck in the 1.250-65 range when "full")
So IMO this shows something good about T-1275s, especially the way mine get used.
I have not been able to equalize their SGs. I don't have a charger that can do over 15.7v. Mex says there is a world of difference by going just a little higher to 16v. (the Trojan spec for equalizing T-1275s is 15.5 though.) They may just be too beat up from the golf car days to ever get equal SGs. They load test ok, getting 90% of rated after recovery (270AH achieved of 300AH rated as a pair) Haven't done a load test lately to compare.
