Mauledriver(at)nc.rr.com
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 Posted: Thu Sep 08, 2011 3:22 am Post subject: Initial experience with dual Odyssey PC680s powering RV |
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So going back throught the archives, it seems like my charging setup
would serve as a good ground power unit if the charger were upgraded
from a 2 amp "maintainer" type to a 10 amp "smart" charger like the X10
Schumacher I recently picked up from Walmart. It would power all or
most of my panel setup and practice work, prevent the batteries from
getting deep discharged, and bring them up to full charge pretty quickly
once the load was removed.
Assuming that's right, the problem I'm having right now is that the
Schumacher doesn't seem to like to be connected to both batteries
simultaneously. It goes into some kind of blinking fault mode. Any
thought?
(I'm going to check the model number again but recall "X10")
Bill
On 9/8/2011 6:09 AM, Robert L. Nuckolls, III wrote:
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<nuckolls.bob(at)aeroelectric.com>
At 08:49 PM 9/7/2011, you wrote:
> That's exactly what I was trying to say. From what I'm beginning to
> understand, it's bad for the batteries. I'm not using any kind of
> power supply other than the 2 batteries hooked to a 'trickle'
> charger. Bad stuff.
Yeah . . . while the little charger/maintainer will eventually
top-off the battery it's connected to, using that battery to
'run things' puts what we call a deep cycle on it. You can
buy batteries optimized for deep-cycle service like trolling
motors, mobility carts, etc. But the Odyssey is not well disposed
to living this kind of life.
Even in our cars, the battery is taxed only a few seconds each
start-run cycle to get an engine started whereupon it's quickly
recharged. All batteries are good for hundreds to thousands
of such cycles where each discharge event uses a few percent
off the top.
But taking a battery down below 75% or so is a deep cycle
that has an effect on service life. If you've been using
the batteries like this for some time, it would account for
their relatively soggy condition.
When your choice of batteries comes with a premium price,
it seems practical to consider some sort of ac mains driven
ground power device for extended ground ops.
Bob . . .
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