Trojan T-105 versus T-1275
I'm considering using a pair of T-1275 instead of T-105 to gain some additional amp-hour capacity. Should I expect either of these choices to last for about the same number of 50% discharge/charge cyc...
Forum Discussion
landyacht318 wrote:
Niner, was not your t-1275 used and abused before you got it?
Perhaps a t-1275 recharged properly from new, would not require the extra voltage and duration at that extra voltage.
I was going to get a t-1275, but then my Northstar AGM -27 proved it alone could meet my needs, and next month will have been flying solo for 3 years.
My T-1275's came out of a golf cart. Went on the charger every night. They lasted about 2.5 years. I pampered them, I recharged them at 14.8V, I equalize recharged them when they got home from a trip. The oddest thing about them was the cells never really all got in synch with the specific gravities all being the same., the variance between cells was quite high. They were a bugger to desulphate if I went 10 to 14 days between an equalization recharge. Very time consuming.
I knew they were done when I fully recharged them the day before on a 7 day trip, both generator and solar panels, at 14.8V, hardly ran anything all night and took a 5 or 6 minute shower the next morning to drain the fresh water tank before doing a dump, and the water pump was fading fast to a trickle from the showerhead while washing my hair to get all the camp dirt out of it, the 2nd time around. Time for something new for my battery needs, pronto. Good thing it was at the end of a trip.
The best thing I did (though it won't help the OP, he wants 1000w) was replace them with a single 157 AH lightly used DEKA thick plated surplus TELECOM bank battery with very very thick lead plates, in AGM.
It's slow to recharge, won't take much over 20 amps, but it's a breeze to fully recharge, and it doesn't lose much voltage in storage, during the winter. For my usage, it's perfect.
