12v from 24v Battery Bank ?
With two 12vs in series and the 24v charger on the other two posts, can you draw 12v at the same time as they are being charged at 24v, from the pos and neg of just one of the batts? If so, will th...
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valhalla360 wrote:
What kind of draw are you talking about (amperage and duration)?
If it's a few seconds at a time to run a water pump a few times a day and they are good size deep cycle batteries, probably not a big deal.
If it's running, lights, TV, cable box and a few other things for several hours continously, it's more of a concern.
Trying to draw 12volts off both batteries would take some thought to make sure you aren't accidentally creating a 24V circuit or short circuiting between the batteries.
The DC/DC converter someone suggested is probably both simpler and more foolproof.
Ditto: Simply stated. I too would recommend a DC/DC converter. Readily available and not expensive in the scheme of things. We installed them in aircraft to glean 12 volts for two way radios.
One other issue tapping 12 volts off the batteries. If you tap the first bank nearest the negative lead and then lift the negative lead off the chassis you can get a reverse polarity on your systems.
