gl1100A 1983 Battery Drain?


Information and questions on GL1100 Goldwings (1980-1983)
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RealtyCaffeine
Posts: 8
Joined: Fri May 09, 2014 10:13 pm
Location: Buford, GA
Motorcycle: 1983 GL1100A Aspencade

gl1100A 1983 Battery Drain?

Post by RealtyCaffeine »



I'm troubleshooting a battery drain problem and not having much luck. It's pulling about 8-9 ma when the key is off and it doesn't seem to be affected by pulling the fuses. I know the digital dash will pull some but I'm not sure if 8-9 ma is appropriate. It seems to run the battery down in 3-4 days of just sitting in the garage. Any ideas??


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winguyjo
Posts: 627
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing 8 : 1982 gl1100 standard.

Re: gl1100A 1983 Battery Drain?

Post by winguyjo »

8 - 9 milliamps sounds like what i would expect from radio and/or odometer memory. are you sure the battery is good ?
RealtyCaffeine
Posts: 8
Joined: Fri May 09, 2014 10:13 pm
Location: Buford, GA
Motorcycle: 1983 GL1100A Aspencade

Re: gl1100A 1983 Battery Drain?

Post by RealtyCaffeine »

It's a new battery. I know "new does not equal good" but it seems ok. I bought a lithium battery this time and it checks out ok with the charger I bought with it. I'm going to see how long it lasts without the charger/tender on it as a test but thought I'd ask if anyone had experience with a problem like this.
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OldguyGlen
Posts: 367
Joined: Sat Nov 24, 2018 10:55 am
Location: Mound,MN
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1980 GL1100 STD/Vetters
1966 Honda 90

Re: gl1100A 1983 Battery Drain?

Post by OldguyGlen »

Just juggling the numbers for curiosity...
At 10 ma, and a typical battery having 22 amp-hrs rating, it would take 90 days to fully drain the battery. Assuming the battery would effectively be too low to actually start the motor after about 1/3 discharge, that would still take 30 days. So a failure in 3 days indicates a bigger leakage, or a weaker battery than expected. So, further testing is indicated to shed some light on this. Keep us posted.
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Joneszy
Posts: 183
Joined: Sat Jun 24, 2017 10:27 pm
Location: Manitoba Canada
Motorcycle: 1999 Valkyrie CT
1978 Gl1000 "Trickster"

Re: gl1100A 1983 Battery Drain?

Post by Joneszy »

My 83 had a battery drain when I purchased it. I knew this upfront. After trying several things to solve the issue, noticed that the voltmeter never shut down unless I held my mouth right (pushing down a bit on the key when shutting off if I recall)when turning off the key. As I was stripping the bike and replacing the digital dash pod with an analogue setup from an 82 anyway went ahead and did that swap which requires a different keyed ignition switch, proceeded to make the swap and never had the problem again. Just a suggestion to fiddle with the keyed switch and watch the voltmeter when shutting down, if it does not zero then maybe you have an issue with the switch?
RealtyCaffeine
Posts: 8
Joined: Fri May 09, 2014 10:13 pm
Location: Buford, GA
Motorcycle: 1983 GL1100A Aspencade

Re: gl1100A 1983 Battery Drain?

Post by RealtyCaffeine »

Thanks for the tip! I have been monitoring the battery voltage and it seems to be settled at around 13.18vdc. I'll try your tip and see if I can make it happen.
Devorlast
Posts: 6
Joined: Tue Nov 01, 2022 7:15 pm
Location: United States
Motorcycle: 1983 GL1100 Aspencade

Re: gl1100A 1983 Battery Drain?

Post by Devorlast »

The 83 I bought last year has the same exact problem. I didn't feel like digging through 40 years old wiring so I got a battery disconnect switch, it's like $6 on amazon, and has been working fine since. Only need to turn the switch off when you park it for the day, and since the battery on the GL1100 is so conveniently located it's a breeze. There are more expensive options out there that include a wireless fob relay that goes across your main positive line, I don't know if I'd go that far though for just a little more convenience. One thing to keep in mind though, I am using a Lithium Iron battery that is physically smaller than the stock so I have the space for the switch. The stock battery might need some added hardware to make the switch fit without touching anything.
One day when I have more time on my hands I'll look for the "leak", If you pull all of the fuses and still see it, you might have a pinched wire somewhere. Check resistance between positive and chassis and positive and negative with the battery disconnected and fuses pulled, if it's low or "jumpy" you might have some nicks in the wiring.


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