[RE-wrenches] AGMs - Maintenance Cycling

[James Jarvis]

Is there a specific problem you are trying to resolve? If the loads are
shut off when in storage, I don't see any issue with not messing with any
charging what-so-ever for some months of storage.

-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
http://www.aprsworld.com/


On Mon, Dec 1, 2025 at 10:47 AM Mark Frye via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Folks,
>
>
>
> I have some AGMs that are PV charged during normal use and can be line
> charged when in storage (IOTA).
>
>
>
> The batteries will generally see 10-20% daily DOD and will generally
> complete the absorb cycle and see a fair amount of float each day.
>
>
>
> They may be deployed in this mode for many months.
>
>
>
> After that, they will go into storage for several months.
>
>
>
> Storage will include float charging at the IOTAs regular voltage.
>
>
>
> I have the LVD set at 46V.
>
>
>
> Would it make sense to occasionally turn on the load, turn off the line
> charger, let the bank run down to LVD, turn off the load, turn on the
> charger with the increased voltage jumper installed, charge overnight,
> remove jumper and resume normal float charging?
>
>
>
> Thanks,
>
>
>
> Mark
>
>
>
>
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