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New Battery

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Old Jul 21, 2012 | 10:27 PM
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Default New Battery
Installed new battery in my 09 LowRider 2 days ago. Went for a 40 mi ride today (mostly highway), after she cooled down I hooked up the battery tender. Checked it 1/2 hour later, in charge mode (constant yellow light). Gave it another 1/2 hour still in charge mode, have never had a tender in charge mode this long! Another 15 min and it's still charging, plus tender is very warm so I unplugged it. So my question is why since it's a new battery did it charge for so long? And second when I checked it with a volt meter why is it reading 13.03v instead of 12.7v. Appreciate any input.
 
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Old Jul 21, 2012 | 11:41 PM
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It is working correctly. Go to the Battery Tender website and read how it works. Also read the FAQs.
 
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Old Jul 22, 2012 | 06:54 AM
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When the battery is almost charged the charger is giving minimal charge, don't worry.
 
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Old Jul 22, 2012 | 07:28 AM
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Run a meter on your battery - should be @ ~+12.7V when full...
 
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Old Jul 22, 2012 | 08:58 AM
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According to the Harley-Davidson SM:

12.8v=100% charged
12.6v=75% "
12.3v=50% "
12.0v=25% "
 
Last edited by Austin Dave; Jul 22, 2012 at 11:37 AM.
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Old Jul 22, 2012 | 09:03 AM
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On my battery tender the red light is the charge mode,the yellow light(steady on) is the float mode,sounds like your battery is fully charged to me.
 
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Old Jul 22, 2012 | 10:12 AM
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Old Jul 22, 2012 | 11:15 AM
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The battery tender will cycle on and off as needed. If you have a Jr., which is what I'm sure most people use, it's not going to charge very quickly even if the battery is low. I wouldn't worry about it too much, it is a float charger after all. When in doubt check it with a meter.
 
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Old Jul 22, 2012 | 11:29 AM
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Originally Posted by Iceman24
Run a meter on your battery - should be @ ~+12.7V when full...
A fully charged 12 volt battery will measure 12.9 volts!
At 12.7 volts the battery is 25% discharged!

AND good lord! - Don't use a bike mounted gauge to get your volt reading!
 
Last edited by jeffreydsilver; Jul 22, 2012 at 11:31 AM.
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Old Jul 22, 2012 | 11:36 AM
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Originally Posted by jeffreydsilver
A fully charged 12 volt battery will measure 12.9 volts!
At 12.7 volts the battery is 25% discharged!

AND good lord! - Don't use a bike mounted gauge to get your volt reading!
+1
 
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