SiO2 batteries - opinions?
I’m looking to replace my bank of 4 Trojan T-125’s this spring, and was researching various solutions. I was verging towards AGM (FullRiver DC215-12) 12v units to a total of roughly 600 ah (300 usable...
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I still don't have a price for T-1275s but I do note that while 600AH for four T-1275s weighs 328lbs, 600AH of my 100AH 27 size AGMs at 64lbs each weighs 384lbs for six of them.
Another thing to consider is footprint real estate. Six 27s vs four T-1275s. The T-1275s must be outside and are tall too, But (some of) the AGMs could go inside, so that is an advantage for finding room for them all.
Then you have the problem of making up a bank with six 27s that is "balanced". Needs lots of fat wire. Now you might look at my method of having the big inverter on its own bank, and having the rest of the 12v rig on its own bank. Makes wiring each bank (two and four?) balanced easier.
But now you need two converters and two solar sets (which I have from left-over equipment from previous rigs)
I can see looking at the new options when it comes time to replace the old battery bank. Been doing that myself. However, if what you have works, the temptation must be to just replace it as is if everything gets too complicated.
Another thing to consider is footprint real estate. Six 27s vs four T-1275s. The T-1275s must be outside and are tall too, But (some of) the AGMs could go inside, so that is an advantage for finding room for them all.
Then you have the problem of making up a bank with six 27s that is "balanced". Needs lots of fat wire. Now you might look at my method of having the big inverter on its own bank, and having the rest of the 12v rig on its own bank. Makes wiring each bank (two and four?) balanced easier.
But now you need two converters and two solar sets (which I have from left-over equipment from previous rigs)
I can see looking at the new options when it comes time to replace the old battery bank. Been doing that myself. However, if what you have works, the temptation must be to just replace it as is if everything gets too complicated.
