Glen, You didn't say what the ammeter was indicating. Assuming that after you got it started the ammeter showed no charge or low charge, it could be: (1) Bad regulator (2) High resistance connections (3) High resistance (worn-out) circuit-breaker/switch (4) Worn out generator brushes (5) Shorted windings in the generator
The generator and regulator can be tested by an
auto-electric shop. On-plane testing of the regulator can be
done by REMOVING the FIELD lead from the regulator and
connecting it to the aircraft airframe with a clip lead --
the ammeter should show a high charge under this condition.
It's safer to charge the battery outside the aircraft, but
you can jump-start. Don't try it by yourself. Also,
experimenting with the charging circuitry is dangerous.
Don't do it if you don't understand how it works. You need a
good voltmeter and a hydrometer at a minimum to troubleshoot
as well as the understanding of how it all works.
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Alon A-2 () ()
s/n A35
N6359V
based at RHV - San Jose, CA chief pilot: David Smoler
> Glen Ward wrote:
>
> Hello,
> I was wondering what would cause one to have a very weak
> charge? My battery has gone dead twice and I haven't even
> flown! It is an almost new battery, but it just seems to
> be charging little, if at all. Turning on the nav lights
> will discharge it. I drove it around for about 30 minutes
> with navs and strobes going, and it is dead. Can you jump
> start these things from a car? It went dead while they
> were ferrying it here with the lights turned on, and they
> had to get it jumped then too. It is a little expensive.
> 67H is actually in good shape, I just am getting to think
> the previous owner put things off as much as he could,
> then sold it!
> Thanks,
> Glen Ward
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