Forum Discussion
brulaz
May 05, 2017Explorer
BFL13 wrote:
What happens when a 12v charger is put on a 24v battery? I have no idea, but it looks like your set up will have 12v from the original converter going to the 24v bank (while running the rig's 12v systems too) at the same time as the solar is on the batteries at 24v.
Does the bank just ignore the 12v, it being the lower voltage?
The 7-pin 12v is the same thing, which is why I said to pull its fuse in the truck (no effect on signal lights etc)
If you isolate the battery bank and run the 12v systems with the 12v converter, then what will be maintaining the 24v battery bank if solar is not happening? (which can happen for long enough in the summer too around here) Which is why IMO you need a 24v converter.
I think you can put a 12v charger on a 12v half of the 24v and do one half at a time (needs confirmation!) but you aren't wired that way with your 12v converter(s)
No. The 24V battery system is completely separate from the 12V non-battery system, other than the common chassis ground. The only pos interface is via the Victron 24/12V converter.
Currently the only charger in the 24V configuration is solar mppt. I have 700W of solar. On rainy days I can harvest maybe 50Ah @12V. With my 12V battery bank I only used the 120VAC charger a few times over the last few years. And even then it wasn't really necessary. The solar has adequately maintained the batts.
We do NOT live on the "wet" coast. I pity those who do.
Nonetheless, with the new 2000W inverter, I suppose our electricity usage will increase, sadly. So a 120VAC-24VDC charger sounds like a good idea. See below.
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