Battery / Charging questions. - Kawasaki Vulcan Forum : Vulcan Forums
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post #1 of 43 (permalink) Old 01-02-2019, 04:23 PM Thread Starter
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Battery / Charging questions.

2006 900 Classic
Replaced stator 2 years ago.
New battery last year.
I put in on the charger and it shows it was fully charged, used a DMM and battery voltage reads 12.83 with key off, then drops to 12.45 with key on.
Now here's the rub when I try to start it it gives me the old click click that the battery is dead.

Any idea where I should start troubleshooting this issue?

TIA!

2006 Vulcan 900 Classic
Galaxy Silver
12 inch ape hangers
Hard-Krome 2.5 Inch Strippers
Saddleman Explorer 2up seat
Kuraykn Iso Grips
Cobra Short Backrest
Jafrum Leather Saddle Bags
12v Power Point
114 Blue Leds
One Fat Ride!
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post #2 of 43 (permalink) Old 01-02-2019, 05:02 PM
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first eliminate the issue with the battery, use another battery that you know is working good and booster start the bike with that one, if the bike still goes click/click then you can eliminate the battery as the problem
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post #3 of 43 (permalink) Old 01-02-2019, 05:04 PM Thread Starter
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I don't have another battery to try, what if I disconnect the battery and just connected it to my truck with jumper cables to simulate another battery?

2006 Vulcan 900 Classic
Galaxy Silver
12 inch ape hangers
Hard-Krome 2.5 Inch Strippers
Saddleman Explorer 2up seat
Kuraykn Iso Grips
Cobra Short Backrest
Jafrum Leather Saddle Bags
12v Power Point
114 Blue Leds
One Fat Ride!
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post #4 of 43 (permalink) Old 01-02-2019, 05:47 PM
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Quote:
Originally Posted by Rtsitler View Post
I don't have another battery to try, what if I disconnect the battery and just connected it to my truck with jumper cables to simulate another battery?
12 volts is 12 volts, so sure -- but even easier would be to load test the battery. Hook up your voltmeter again and hit the starter. If the battery drops significantly -- like, low 10's or lower -- it's toast. If not, it's something else.

Motorcycle batteries are tiny compared to auto batteries, and they age fast if not kept on a tender. As soon as a battery's internal voltage drops below about 10.8 volts (can't remember the exact number, but it's close to that), it's aging very rapidly, and the lower it goes, the faster it dies. In other words, "new battery last year" is meaningless in this context, annoying though that may be.

"Don't force it. Get a bigger hammer."
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post #5 of 43 (permalink) Old 01-02-2019, 06:48 PM
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Trainermb is right on. You need to test the battery under load. You didn't say if it was a lead/acid battery, but if it is you should check the fluid level of the cells. You could always jump it with a car battery. But DO NOT have the car running like you would if you were jumping a car.

Another thing to check is your starter switch. My 500 would intermittently do the "click-click" when I tried to start it. I took the starter button apart and cleaned up the contacts. There's a spring inside of the assembly so be careful not to lose it if you go that route.

Last edited by AZRider; 01-02-2019 at 06:51 PM.
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post #6 of 43 (permalink) Old 01-02-2019, 10:39 PM Thread Starter
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I believe the battery is a Gel battery and I will load test it tomorrow after I get up.
Thanks again for the quick and detailed response!

2006 Vulcan 900 Classic
Galaxy Silver
12 inch ape hangers
Hard-Krome 2.5 Inch Strippers
Saddleman Explorer 2up seat
Kuraykn Iso Grips
Cobra Short Backrest
Jafrum Leather Saddle Bags
12v Power Point
114 Blue Leds
One Fat Ride!
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post #7 of 43 (permalink) Old 01-03-2019, 07:03 AM
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Just for more info -
Even IF the voltage reading is OK, above 12.5 volts, doesn't mean the battery has the power (cranking amps) to turn the motor over and start it.
This is true even if you just charged the battery.
Volts and amps are not the same.


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post #8 of 43 (permalink) Old 01-03-2019, 02:08 PM Thread Starter
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Put the DMM on the battery and cranked the bike and the volts dropped to 7.55.... So it's safe to assume my battery is toast. I then removed the battery and connected jumper cables to the bike and it clicked like a dead battery a few times then started, not sure why it did that. I'm going to get a new battery and see if this helps my situation.
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2006 Vulcan 900 Classic
Galaxy Silver
12 inch ape hangers
Hard-Krome 2.5 Inch Strippers
Saddleman Explorer 2up seat
Kuraykn Iso Grips
Cobra Short Backrest
Jafrum Leather Saddle Bags
12v Power Point
114 Blue Leds
One Fat Ride!
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post #9 of 43 (permalink) Old 01-03-2019, 07:58 PM
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It might be handy to know why the "new last year" battery is toast now.

How long was it sitting? What is the temperature of the storage location?

Did you have a trickle charger on it (like a battery tender)?

How was the bike acting before you parked it for the winter - any starting issues? Anything weird happen then?

It could be that your "new last year" battery was just crap to start with...what brand is it? Do you trust the retailer who sold it to you...ie: could it have been "old stock" when you received it?
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post #10 of 43 (permalink) Old 01-04-2019, 12:24 AM Thread Starter
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Quote:
Originally Posted by Shadow01 View Post
It might be handy to know why the "new last year" battery is toast now.

How long was it sitting? What is the temperature of the storage location?

Did you have a trickle charger on it (like a battery tender)?

How was the bike acting before you parked it for the winter - any starting issues? Anything weird happen then?

It could be that your "new last year" battery was just crap to start with...what brand is it? Do you trust the retailer who sold it to you...ie: could it have been "old stock" when you received it?
I was mistaken battery was older than last year, it is about 3 years old according to the sticker in it. Bike was fine last time I rode, I live in NC so it doesn't get put away for winter. Coldest it's been here is the high 30's but that was only 1 or 2 days.
I didn't have the battery on a trickle but I will make that happen going forward once I get a new battery.
The battery is a Advance Auto house brand so I do trust that it was a decent battery.

2006 Vulcan 900 Classic
Galaxy Silver
12 inch ape hangers
Hard-Krome 2.5 Inch Strippers
Saddleman Explorer 2up seat
Kuraykn Iso Grips
Cobra Short Backrest
Jafrum Leather Saddle Bags
12v Power Point
114 Blue Leds
One Fat Ride!
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