Inverters with Mix of 6s and 12s
I have posted in various places lately about my attempt to find a good way to run the mixed bank of 6s and 12s. As a sort of update, here is what I have found out so far. (Two beat up T-1275s are ...
Forum Discussion
Right now the solar is on the four 6s, but I can swap it back and forth easily, since the controller array and battery wires are all with alligator clamps. I can go battery direct (no controller) or with controller on any bank.
Putting all six in a single bank was my first attempt, but I am kind of liking this way. I suppose it doesn't matter a lot in the long run, but I just feel better with the 2000w on the 12s and the rest on the 6s. It works better for battery location and inverter wiring etc etc . The solar is awkward.
I should go back to having two solar sets like I had for a while, but
OTOH, I had good luck with that Y I put in the one array to run two controllers. Perhaps a somewhat bigger array, a Y, and one controller on each bank next time out. We'll see next year.
Meanwhile, I forgot to mention Floating at home. The 6s are on the rig's converter, so I have another maintainer- charger that does the 12s. That is just plugged into the trailer which is on shore power from the house, so everybody gets a Float ok.
Actually the two beat up 12s are not quite beat up to the same degree, or at least they have different SGs per cell. One is straight 1.260s while the other is various from 1.250-1.275 but averages 1.260. I am thinking to separate them while floating and give each its own float charger (I have two so no prob)
I am starting to really like these T-1275s. Too bad they cost so much. (no idea why) I keep thinking if this is what they are like when beat- up, what would new ones be like?
Putting all six in a single bank was my first attempt, but I am kind of liking this way. I suppose it doesn't matter a lot in the long run, but I just feel better with the 2000w on the 12s and the rest on the 6s. It works better for battery location and inverter wiring etc etc . The solar is awkward.
I should go back to having two solar sets like I had for a while, but
OTOH, I had good luck with that Y I put in the one array to run two controllers. Perhaps a somewhat bigger array, a Y, and one controller on each bank next time out. We'll see next year.
Meanwhile, I forgot to mention Floating at home. The 6s are on the rig's converter, so I have another maintainer- charger that does the 12s. That is just plugged into the trailer which is on shore power from the house, so everybody gets a Float ok.
Actually the two beat up 12s are not quite beat up to the same degree, or at least they have different SGs per cell. One is straight 1.260s while the other is various from 1.250-1.275 but averages 1.260. I am thinking to separate them while floating and give each its own float charger (I have two so no prob)
I am starting to really like these T-1275s. Too bad they cost so much. (no idea why) I keep thinking if this is what they are like when beat- up, what would new ones be like?
