[RE-wrenches] Aging Batteries

[Jerry Shafer]

Wrenches, Will
This is a hack trick but it can work as long as you don't have failed
cells, bring the static voltage up to 26 by adding just one battery, this
might be easier on the logistics issue. By doing this you will in the end
sacrifice the additional Battery but increasing the static voltage will
also increase it under load and reduce the run time of the genny, you will
also want to increase the charge voltage settings to accommodate the higher
voltage. Yes it's a hack but can help get you through the winter.
Fun times

On Fri, Oct 27, 2023, 8:03 AM White, Will via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Hello Wrenches,
>
>
>
> I installed my off-grid system in 2008. It’s 24 V using 2 V industrial FLA
> batteries. As you can imagine after 15 years the capacity of my battery
> bank is significantly less than it used to be.
>
>
>
> For logistic reasons, I won’t be able to replace them till around June of
> next year, but it’s not even into winter yet and my generator is already
> running every day.
>
>
>
> Does anyone have any tips on how to get through the winter on these
> batteries while minimizing generator run time? I’ve got two FM80’s with 3.8
> kW of PV, two VFX3524 inverters, and a Kohler RES12 generator. I haven’t
> changed any settings since I installed the system.
>
>
> Thanks,
>
> Will
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