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ACRO E-mail Archive Thread: [Acro] Re: Decathlon battery/starter

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ACRO E-mail Archive Thread: [Acro] Re: Decathlon battery/starter


Thread: [Acro] Re: Decathlon battery/starter

Message: [Acro] Re: Decathlon battery/starter

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From: Gil & Phyl Tellier <giltel at>

Date: Sun, 28 Apr 2002 06:37:12 UTC


I get 3 years on a B&C 17 AH sealed lead acid battery, alternator and starter
in a Pitts S-1S with 180 hp engine. On third battery I just recently changed
to their new 16 AH battery that has improved cranking current and because the
prop turnover was slowing slightly on current  battery that was approaching 4
years old. Voltage during cranking reads ~10 vdc. I use dedicated #4 ground
and positive lines to the starter and insure that all connections are clean
and bright copper color. A gel cell battery must be charged at the correct
voltage and discharge to low voltage should be avoided. I use an
electronically controlled battery charger that shuts down at the correct
charging voltage and can be left attached indefinitely. If cranking voltage
to the starter is low but remains high at the battery your starting relay may
need replacing.
Gil Tellier, IAC Ch. 49

Kathy Lankford wrote:

> Seems like I just bought that new Concord gel cell and it's already
> pretty dead.  The last one didn't last long either - maybe two years if I
> eke the very last out of it.   For the last six months, even with a full
> charge, I have to bump the prop against the compression stroke three or
> four times before it finally goes all the way over.  I can get it over
> compression twice, and if the engine hasn't caught by then, it has to be
> pushed back to the hangar for charging.
> I've seen a battery that's older than dirt starting a Piper Archer.  Is
> there some reason to expect such a short life on a Decathlon battery?
> Has anyone tried switching to a light weight starter, and does it help?
> Kathy
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