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Grumps[_6_] Grumps[_6_] is offline
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Default Car battery charge via towbar 12S connector

"Chris J Dixon" wrote in message
...

Grumps wrote:

As per subject really. Is this at all possible/recommended?
According to the 12S pinout, pins 4 and 3 are constant power and ground.
Difficult to imagine as I would think that the local chavs would've put a
paper clip in there by now.


The permanent feed should be fused. I'm not sure that miscreants
have any great knowledge of, or interest in, such matters. The
results of their attempt would not be particularly spectacular,
indeed they probably couldn't tell if it had worked.


I'm not sure what the fuse rating is. Say it's 10A (maybe 16A) and the
charger can only do 6A. Then the fuse can't blow can it?

Is your question, "Is it possible to charge a car battery via the
12S connector, instead of directly connecting to the battery
terminals?"


Yes.

Personally, on the odd occasion it has been necessary, running a
mains extension to the car, and putting the charger under the
bonnet has worked fine.


That's what I'm doing now.

Your proposal would increase the length of DC cable, both
internal to the car, and possibly also externally, which is less
than ideal, though not a job-stopper.


Why does the idea appeal to you?


It appeals as it is easier to plug something into an exposed socket than to
keep lifting the bonnet.
It's the cold mornings that cause the starting troubles. Both battery and
charging have been tested and are ok. There may of course be a permanent
drain elsewhere.