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
The end of my battery life on my T-1275 was when I couldn't get through a regular 3 minute shower, not a Navy shower, without the water flow decreasing out of the shower head.
I made an arbitrary decision, then and there. Fired up the Honda Generator for every shower after that first water pressure reduction from drop in voltage on the bum cell. End of trip, and at that point, I was in the hunt and looking for replacement, when the Teleco battery posts started popping up here.
End of life for a battery is whatever the owner deems is the end of life, regardless of timing or inconvenience. My daily life doesn't depend, per say, on the health of my battery, others that full time without stick and brick, have different needs and parameters for when things fail.
I will say this: it is a tough battery, just a little fussy to get top charged regularly. Specific gravity per cell, on both of the ones I had, were also all over the place, yet the battery worked fine, for a long, long time. In the end I had a 40 to 50 point spread between the bad cell, and the 5 other good cells. 1.285 sometimes 1.290 on the good cells (non temperature corrected, this was in 100F temps), and 1.250 to 1.240 on the weak sister, when she stopped adequately serving my needs. YMMV, that's what I measured and saw.
They behave well enough if charged up to 14.8V daily, but mine, being tired, seemed to not have the SG sag as much if I got to 15.0V daily, later in their life. Whether I roasted the plated by doing this, or caused faster lead shedding, I do not know, the battery never saw more than 8.5 amps from the solar panel doing the top charging, about a C/18 or so charge rate, not hard on a battery of this size, at all.
I made an arbitrary decision, then and there. Fired up the Honda Generator for every shower after that first water pressure reduction from drop in voltage on the bum cell. End of trip, and at that point, I was in the hunt and looking for replacement, when the Teleco battery posts started popping up here.
End of life for a battery is whatever the owner deems is the end of life, regardless of timing or inconvenience. My daily life doesn't depend, per say, on the health of my battery, others that full time without stick and brick, have different needs and parameters for when things fail.
I will say this: it is a tough battery, just a little fussy to get top charged regularly. Specific gravity per cell, on both of the ones I had, were also all over the place, yet the battery worked fine, for a long, long time. In the end I had a 40 to 50 point spread between the bad cell, and the 5 other good cells. 1.285 sometimes 1.290 on the good cells (non temperature corrected, this was in 100F temps), and 1.250 to 1.240 on the weak sister, when she stopped adequately serving my needs. YMMV, that's what I measured and saw.
They behave well enough if charged up to 14.8V daily, but mine, being tired, seemed to not have the SG sag as much if I got to 15.0V daily, later in their life. Whether I roasted the plated by doing this, or caused faster lead shedding, I do not know, the battery never saw more than 8.5 amps from the solar panel doing the top charging, about a C/18 or so charge rate, not hard on a battery of this size, at all.
