ANOTHER Battery Dead |
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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If that happens, I would say the battery was faulty. It's not the norm. A battery that self discharges in two weeks is certainly not right. Yes it is puzzling. The fact that it's not the first to suffer would suggest it's not the battery, but I can't suggest any other cause, the only way is to remove the earth cable from the battery and connect an ammeter between the battery and cable to see if there is any drain.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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el__burro
Senior Member Joined: 04 Aug 2018 Location: London UK Status: Offline Points: 423 |
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I have experienced this draining issue since adding Neutral and Gen idiot light to my dashboard (as per an older post)
Hopefully I will source the parasite element asap. Thanks el__burro
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Steph
Senior Member Joined: 13 Aug 2017 Location: London Status: Offline Points: 135 |
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+1 on parasitic drains.
Happened to me, a faulty regulator/ rectifier was slowly draining the battery and eventually damaged it. Here is how to do the test |
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Cali Stone
LM3 |
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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Then I guarantee it's something to do with that. Try removing both bulbs, or better still, one at a time, see which is causing the problem. Something isn't right in the way they have been wired up.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
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The electromechanical voltage control unit has a mechanical cut out in the form of a set of contact points which when the ignition is turned off open and disconnect the battery from the charging system.If the contact points fail to open the battery will drain but I don't know how quickly this would happen.I believe it would take a few hours.
Edited by Dave P. - 10 Mar 2020 at 10:01 |
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TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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If it leaves the rotor coil live then maybe adding the lamp will have allowed the drain. Without the charge warning light then there would be no drain through the rotor.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
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[URL= ][/URL]http://www.thisoldtractor.com/guzzi007/pdfs/1973_V850_USA.pdf
That appears to be the case Brian.To check the cutout points the regulator cover can be removed and the points inspected. |
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TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
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