Bang, Buck, Batteries
Getting ready to repower a coach- 6 of them for 750 amp hours at 12 volts.
Forum Discussion
The Lifeline GPL-30ht is the ~2 inch taller slightly longer group31 with 150AH capacity.
It weighs 22 more Lbs than the gpl-31xt, has 25 more AH and 50 more cca which to me says thicker plates than the gpl-31xt.
The 30ht will be the heart of a friend's system soon on my recommendation, by way of Mex.
My Northstar group 27 AGM still impresses me, but it needs the high amp recharge every so many deep cycles, or performance( voltage under load for AH removed) tanks after about 4 or 5 low and slow solar recharges to full, or near full.
Charge to 0.5% of capacity at manufacturer recommended absorption voltage. Trust no blinking green light.
I've seen the taper to 0.5% of capacity take 3 hours at Absorption voltage, I've seen it take 10 hours to taper to that level too.
No automatic egg timer based algorithm is going to satisfy that 10 hour absorption requirement, when it is required, which it will be, if PSOC'd often.
Don't have an Ammeter? Well revel in your blindness, and put your faith in blinking green lights, and your head in the sand.
It weighs 22 more Lbs than the gpl-31xt, has 25 more AH and 50 more cca which to me says thicker plates than the gpl-31xt.
The 30ht will be the heart of a friend's system soon on my recommendation, by way of Mex.
My Northstar group 27 AGM still impresses me, but it needs the high amp recharge every so many deep cycles, or performance( voltage under load for AH removed) tanks after about 4 or 5 low and slow solar recharges to full, or near full.
Charge to 0.5% of capacity at manufacturer recommended absorption voltage. Trust no blinking green light.
I've seen the taper to 0.5% of capacity take 3 hours at Absorption voltage, I've seen it take 10 hours to taper to that level too.
No automatic egg timer based algorithm is going to satisfy that 10 hour absorption requirement, when it is required, which it will be, if PSOC'd often.
Don't have an Ammeter? Well revel in your blindness, and put your faith in blinking green lights, and your head in the sand.
