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Dead battery, or?

wissing

Tuned and Synch'ed
GT Contributor
Joined
May 21, 2014
Messages
25
Location
Alexandria, VA
So, Wednesday I came home after short trip back from work. In the garage I cut the engine by putting down the kick-stand but let the key be in the 'on' position. After a few seconds I noticed that the front ligth went off - not a gradual fade but like turned off. I was in hurry and did not think more about it. Untill Saturday when I found the bike to be completely and utterly dead without even light in the dashboard.

Today after 12 hours on the charger the bike could be started, however a little reluctantly. The charger's leds indicated that it was still charging and had not yet reached 80%. Before starting the engine, the dashboard voltage reading was 11.4, when driving it showed 13.9-14.1, and when parked after the drive 12.1.

Now, what s this about? And what should be done?

I don't know if this issue could be related to a visit to my dealer 10 days ago. The visit was for warranty work on cross over pipes and sealing of headlamp. As part of the workshop's routine, the bike was linked up to PAD and the ECU was acting funny, showing an unknown error and showing crazy readings like 3 mio miles on odometer. After consultation with Piaggo, the ECU was exchanged on the spot with an ECU from a mashine in the show room. Until Wednesday everthing apperard normal and during my short ride this afternoon i did not notice anything unusual.

Any help would be much appreciated.

Frank
 
My Tour is 2 years old this month. I just changed my battery as it would not hold a charge over 12.8 and dropped to 12.2 almost immediatly after turning the key on. I charged it every couple weeks over the winter but it still cranked slowly when I first started it and took several tries at the gas station when I filled up. I had already cleaned both ends of the ground cable and hit both cables with DeOx and battery terminal sealer.
 
So, Wednesday I came home after short trip back from work. In the garage I cut the engine by putting down the kick-stand but let the key be in the 'on' position. After a few seconds I noticed that the front ligth went off - not a gradual fade but like turned off. I was in hurry and did not think more about it. Untill Saturday when I found the bike to be completely and utterly dead without even light in the dashboard.

Today after 12 hours on the charger the bike could be started, however a little reluctantly. The charger's leds indicated that it was still charging and had not yet reached 80%. Before starting the engine, the dashboard voltage reading was 11.4, when driving it showed 13.9-14.1, and when parked after the drive 12.1.

Now, what s this about? And what should be done?

I don't know if this issue could be related to a visit to my dealer 10 days ago. The visit was for warranty work on cross over pipes and sealing of headlamp. As part of the workshop's routine, the bike was linked up to PAD and the ECU was acting funny, showing an unknown error and showing crazy readings like 3 mio miles on odometer. After consultation with Piaggo, the ECU was exchanged on the spot with an ECU from a mashine in the show room. Until Wednesday everthing apperard normal and during my short ride this afternoon i did not notice anything unusual.

Any help would be much appreciated.

Frank
According to your post, you didn't turn the key to off. That would kill your battery. It may recover and be fine, then again it may not.
 
Thanks for you replies, Rudy and John. What really puzzles me is that the lights died instantly after a few seconds that Wednesday evening. Can a battery die like that? I would expect a more gradual decline but then again, I don't know much about batteries.
 
Could be the light logic in the ECU. The engine wasn't running, so headlight off. I'm not positive on this, but it is all I could think of.
 
I don't know if it kills the lights but if the battery drops below a certain voltage it will refuse to even attempt to start. I have seen batteries die in strange ways.
 
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