GL1000 Battery Drain?


Information and questions on GL1000 Goldwings (1975-1979)
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skythepig
Posts: 13
Joined: Fri Aug 08, 2014 6:31 pm
Location: Bude Cornwall
Motorcycle: 1975 GL1000 Trike

GL1000 Battery Drain?

Postby skythepig » Mon Jun 15, 2015 9:28 am



Hi I have a 1975 GL1000 based trike. How long should you be able to leave the bike before the battery will not start it?
I had a new battery fitted august 2014 but if I do not use the bike for about 7 days it will not start as battery is too weak and has to be recharged. Surely a battery should be able do sit idle and last longer than a week.
I have done a parasitic leak test and there are no drains to the battery when all off.
I also did a stress test yesterday which I found online and the battery ended at 12.09v?
Today just checked 24 hours later and it reads 12.55v
Cleaned the battery connections as well just to be sure.
Any other ideas on what I should look at would be appreciated.
Oh it's a wet cell battery, are there any benefits over these with the AGM type?
thanks Gary



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WingAdmin
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Re: GL1000 Battery Drain?

Postby WingAdmin » Mon Jun 15, 2015 10:38 am

A healthy, fully-charged battery should be able to sit for weeks and still start that bike with no problem. For it to not start after a week of sitting means a battery that is not capable of holding its charge, or a parasitic draw.

Disconnect the battery from the bike, charge it, then let it sit for a week, reconnect it and see if the same problem occurs. If it does, you know the battery is bad. If not, you've got a parasitic load causing the problem.

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skythepig
Posts: 13
Joined: Fri Aug 08, 2014 6:31 pm
Location: Bude Cornwall
Motorcycle: 1975 GL1000 Trike

Re: GL1000 Battery Drain?

Postby skythepig » Thu Jun 18, 2015 8:29 am

Thanks for advice. Turns out it was a bad battery only 7 months old!!!
Unfortunately the bike shop I bought it from went bust and although the new owners are under no obligation to honour the old owners 12 month warranty they did me a new AGM battery at a substantial discount better than any deals online.
Bike now starts and it passed its MOT so all we need is some nice summer weather to get out for a ride. :D


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