From: theise@panix.com
On Fri, 2 Aug 2024 23:13:42 -0400,
bfh wrote:
> Ted Heise wrote:
> > On Fri, 2 Aug 2024 14:07:23 -0400,
> > bfh wrote:
> >> Back in a previous life, we did a lot of flatspotting and got
> >> along fine without a generator, but we didn't have a microwave,
> >> electric coffee pot, or a toaster.
> >
> > The wife and I are spoiled, what can I say. :)
> >
> > But how did you charge the trailer battery?
>
> It charged through the 7-pin when driving, and with the
> built-in charger when we had shore power. I don't remember
> having any battery problems when flatspotting, but we rarely
> stayed in one place longer than 2 days/nights. Plus, we weren't
> spoiled back then, and all we used when parked were 1 - maybe 2
> - lights and the water pump.
Okay, charging from the 7-pin is what I'd expect, but I haven't
seen any evidence of that happening since I put in the new LiFEPO4
battery. Admittedly, it's just been one trip of ~5 days.
I do wonder if the battery has to reach some lower SOC than I've
seen (85%?) for charging from the 7-pin to kick in. Operation of
the Dometic battery monitor is still largely a mystery to me...
https://www.amazon.com/Go-Power-GP-BMK-25-Battery-Monitor/dp/B09NRXD9G8
Is it possible the 7-pin will actually charge the battery if it
gets to a lower SOC? If yes, do the GP-BMK-25 settings make a
difference in this level? I can't tell from the "manual" and mre
broadly havn't been able to get a good unserstanding of how it
works.
Maybe another relevant point is that the new battery shows its
state in good detail via a nifty bluetooth linked app; the info
from the battery makes sense, but diverges at times from what the
Dometic monitor shows (especially as it relates to SOC).
--
Ted Heise West Lafayette, IN, USA
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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