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Author Topic: Monster 1100 Evo Battery/Electrical/something else?  (Read 3625 times)
koko64
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« Reply #15 on: July 25, 2020, 07:06:21 PM »

 waytogo

We're glad you're here. It's a great community . chug
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Howie
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« Reply #16 on: July 26, 2020, 03:35:44 AM »

You did not kill a cell in the battery.  I'm also not sure how they came up with that diagnosis unless they actually removed the fill caps to test each individual cell.  The batteries they were selling you at best did not have proper cold cranking amps.  A 35 amp difference is a lot.  If they were previously loaded with acid, particularly at the factory they might have suffered sulfation on top of that.  Some chargers do have desulfation capabilities, but at that point your battery is on the way out and should be replaced.

Don't be concerned with key on voltage in the low 12s.  When you turn the key on you are also turning on the lights and ECU plus priming the fuel pump.

Do check the charging rate at the battery, 13.5-14.5 volts at 3K RPM.  If you are undercharging you will eventually run the battery down.  If you see less than 13.5 we will help you pinpoint the problem. 

If you are using the bike on a regular basis there should be no need to keep it on a tender.

waytogo

We're glad you're here. It's a great community . chug

I'll second that!
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Barney
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when in doubt, pin it


« Reply #17 on: July 26, 2020, 08:28:01 AM »

They had the battery for several hours before they came to that conclusion. I'll do some more testing as soon as I get my hands on a new battery.

Thanks again!
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He Man
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« Reply #18 on: July 27, 2020, 05:28:23 AM »

Missed all this, and I didn't read the whole thread but skimmed it...

I also have a EVO1100 motor and I have been through maybe 8 batteries in the lifetime of owning my Ducati Monster.

Ive bought ebay batteries and autozone/pepboy batteries, I've also bought named branded Yuasa and Motocross batteries (their off label brand). The OEM batteries work, but if you are a daily commuter like me who uses their bike during working hours and hit the starter 20-30 times a day, anything short of OEM Yuasas will die out on you very quickly. The difference between the Yuasa CCA and the offbrand ones is as howie states, somewhere above 200 and somewhere below 200. And the performance is quite drastic.

So atleast I can confirm that you are not crazy!
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2006 Ducati S2R1100 Yea.... stunttin like my daddy CHROMED OUT 1100!!!!


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Barney
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when in doubt, pin it


« Reply #19 on: July 27, 2020, 06:57:31 AM »

Thanks man!  appreciate the insight.
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12 M1100EVO
09 KTM 200XC - sold. I cried.
70 Honda 450 Scrambler
Barney
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when in doubt, pin it


« Reply #20 on: August 06, 2020, 06:59:32 PM »

cautiously optimistic that the new battery has taken care of things, as I haven't run into any issues since putting it in.  A nice bonus is the thing does not hesitate for a moment to fire up - even with the good battery, it was never this easy to start.

Thanks again for the help everyone! i'll follow up if there's anything else to report.   chug
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12 M1100EVO
09 KTM 200XC - sold. I cried.
70 Honda 450 Scrambler
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