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Old May 2, 2012 | 04:42 PM
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Default Battery Tender
I have a Drag Specialties Battery Tender Junior, which I plug in whenever the bike sits at home. The battery is always fully charged when I begin a ride, but upon returning, when I plug in the tender, the red light comes on (less than 80%), after fifteen minutes or so, the light starts blinking green (80% charged) and it's fully charged within thirty minutes.

My question is this: does this indicate my charging system is less than optimal?
 
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Old May 2, 2012 | 04:47 PM
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Mine does the same thing.
 
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Old May 2, 2012 | 04:48 PM
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Test the voltage on the battery with a volt meter and load tester. That will rule out the battery going bad. Then with the bike running, take a voltage reading from idle to about 2-3k rpm. This will at least let you know for sure.
 
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Old May 2, 2012 | 04:53 PM
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Default I agree
Check voltage when you get back.
 
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Old May 2, 2012 | 04:55 PM
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Put a volt meter on the battery with engine runnin'... think it shud read over 14 vdc.
 
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Old May 2, 2012 | 07:03 PM
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Mine does the same thing, sounds about normal.
 
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Old May 2, 2012 | 07:21 PM
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My Battery Tender Jr. will go red for a couple (2-3) of minutes, then turn green.
 
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Old May 2, 2012 | 07:28 PM
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All four of my battery tenders do that. If mine is green and fully charged and I turn on the bike radio, it will go to red while the radio is on, then stay red a short while after turning the radio off.

Your battery is probably fine.
 
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Old May 3, 2012 | 03:00 PM
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my HD charger does the exact same thing
 
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