Has anyone thought of running with a second battery?


Information and questions on GL1000 Goldwings (1975-1979)
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1979wing
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Joined: Mon Aug 12, 2013 10:25 pm
Location: Winnipeg, MB Canada
Motorcycle: 1979 GL1000K
1979 CBX-Z
1972 750-4
2003 SilverWing
2004 BWS 50

Has anyone thought of running with a second battery?

Postby 1979wing » Sun May 01, 2016 8:55 am



I've done some stereo work to my 79 wing, Alpine deck, 4 speakers in my Windjammer, and a Kenwood under seat sub in my Vetter trunk. The sound is awesome, bike going strong, but worried about the strain on the electrical. Was considering a motorcycle gel battery in the trunk to supplement power during short rides. Sub has a volume control, and I can switch off. Would this help?



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WingAdmin
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Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Has anyone thought of running with a second battery?

Postby WingAdmin » Sun May 01, 2016 9:54 am

1979wing wrote:I've done some stereo work to my 79 wing, Alpine deck, 4 speakers in my Windjammer, and a Kenwood under seat sub in my Vetter trunk. The sound is awesome, bike going strong, but worried about the strain on the electrical. Was considering a motorcycle gel battery in the trunk to supplement power during short rides. Sub has a volume control, and I can switch off. Would this help?


Batteries can only store what is being put into them. In a car and motorcycle, the battery's main reason for being is to start the bike. Once running, everything electrical on the bike is running from the stator/alternator - including the battery charging circuitry.

If your charging system isn't capable of handling the additional load of your stereo, then adding a second battery will only prolong the problems you have - in addition, it will cause additional load on the charging system trying to charge that second battery as well, which will leave you LESS power available for your stereo.

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1979wing
Posts: 16
Joined: Mon Aug 12, 2013 10:25 pm
Location: Winnipeg, MB Canada
Motorcycle: 1979 GL1000K
1979 CBX-Z
1972 750-4
2003 SilverWing
2004 BWS 50

Re: Has anyone thought of running with a second battery?

Postby 1979wing » Sun May 01, 2016 10:44 am

How about a more powerful stator? Are those available?

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WingAdmin
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Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Has anyone thought of running with a second battery?

Postby WingAdmin » Sun May 01, 2016 10:47 am

1979wing wrote:How about a more powerful stator? Are those available?


The stator is limited by available space in the motor. There are some larger ones that have a slight bump in power, but if you're looking for a real solution, you're probably wanting to investigate an external alternator conversion like a Poorboy conversion.

SnoBrdr
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Motorcycle: 1978 GL 1000

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Re: Has anyone thought of running with a second battery?

Postby SnoBrdr » Sun May 01, 2016 5:01 pm

WingAdmin wrote:
1979wing wrote:How about a more powerful stator? Are those available?


The stator is limited by available space in the motor. There are some larger ones that have a slight bump in power, but if you're looking for a real solution, you're probably wanting to investigate an external alternator conversion like a Poorboy conversion.


I shudder everytime someone mentions changing a stator.

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1979wing
Posts: 16
Joined: Mon Aug 12, 2013 10:25 pm
Location: Winnipeg, MB Canada
Motorcycle: 1979 GL1000K
1979 CBX-Z
1972 750-4
2003 SilverWing
2004 BWS 50

Re: Has anyone thought of running with a second battery?

Postby 1979wing » Mon May 02, 2016 6:59 am

I was set on having the full Craig Vetter 79 Wing, with all the chrome I could find, and the stereo I couldn't afford in 79, even though I was working as an auto stereo installer in Vancouver. So, my bike is a dream bike, AND a survivor, with 7500 orig. Kms on it, and no major work done.

I was hoping having a second battery in the trunk just for the sub would move it off the grid, and I would use it during a ride, and then charge the battery between rides. I think I'm going to stick with that, as the sub is a bit of a gimmick, kind of like a Dixie air horn, and no, I'm not installing one of those.....

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1979wing
Posts: 16
Joined: Mon Aug 12, 2013 10:25 pm
Location: Winnipeg, MB Canada
Motorcycle: 1979 GL1000K
1979 CBX-Z
1972 750-4
2003 SilverWing
2004 BWS 50

Re: Has anyone thought of running with a second battery?

Postby 1979wing » Mon May 02, 2016 7:00 am

And that will also mean that I leave the electrical system unmolested.




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