>
>
> Hi Dave(it is Dave, isn't it, just with a new handle?)


Not sure what's up, something tumbled in my gmail config I guess.

Why not just use a relay to connect the batteries whenever the voltage is
> over  some preset voltage? I've seen this method used quite successfully
> in commercial products.


How do you disconnect then?  If both batteries are connected, then the
voltage stays up till both are somewhat discharged.
I was also looking for it to perform regulation, so that my gel cell
wouldn't necessarily be charged by the comparatively rude and crude vehicle
charge system.

I was looking to have the charge shut down at 13V, and resume at say 13.5 on
the input side, and output regulated to the particular gel cells, including
temperature ideally.
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