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Re: [St] Hmm... toasty! ...and battery woes
- Subject: Re: [St] Hmm... toasty! ...and battery woes
- From: Gavin Lawrie <gavin.lawrie@xxxxxxxxx>
- Date: Sat, 29 Nov 2008 21:43:09 +0000
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On 29 Nov 2008, at 13:02, Eoin Kirwan wrote:
I'm going to give my bike a weekend trickle charge for the rest of
the winter at least. Unfortunately a long run at the weekend is not
an option
at present :/ Battery is a genuine Yuasa 18 months old, the
electrical system
checks out ok, and the bike is in use every weekday, year round.
I would think you've just got a knackered battery. A couple of years
ago I had similar problems - bike would start OK but battery would run
out of puff quickly - more than once I ended up bump starting it. Put
battery on an Optimate III when it wasn't running, and so on.
Optimate didn't report any problems, and reported battery was 'fully
charged' in the mornings. But turns out battery was the problem, and
when I changed it, all the problems went away. I was a bit surprised
- I thought the whole point of the Optimate was to alert you to this
sort of problem etc, but didn't do so in my case. By look of the
things you are thinking, you potentially could end up spending a lot
of time and money and voltmeters and so on, and then change the
battery... I'm not an expert, but surely a voltmeter would only be
useful when engine is not running - as when it is running all you see
is the voltage provided by regulator (assuming your alternator is
working OK), unless the battery had a dead-short within it, but then
you wouldn't be able to start bike at all. Unless you are completely
over-rating your system with add on stuff (e.g. these lights etc.) -
but you should be able to work out that by comparing peak output of
alternator with total installed load. If voltmeter is only useful
when engine stopped, just borrow a multimeter and put it in a pocket /
pannier to check battery terminal voltage when you are having problems?
Anyhow, good luck - hope you find a cure soon.
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