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Farmall & IHC Tractors Discussion Forum
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battery killer

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mike randolph

10-11-2003 03:49:17




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I have a 574 diesel. It runs well and starts well for a while. If someone leaves the key on for any length of time after killing it you cannot recharge the battery. The batteries may be new, all electrical equipment and connections check out fine. But if the battery ever goes down it must be replaced. Any suggestions as to what is happening?




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Mark A. McCall

10-11-2003 19:46:38




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 Re: battery killer in reply to mike randolph, 10-11-2003 03:49:17  
I have a '51 Super C Farmall, which I converted from an original 6 volt to a 12 volt system, using a Delco generator from a '55 Chevy, a ballast resister (to keep the points from burning out) and a 12 volt voltage regulator. One day, I had a battery drain, and I mean DRAIN! Turns out, the voltage regulator was stuck - one of the little arms inside would keep a circuit closed after the switch was turned off. A 574 SHOULD have an alternator, and might (or might not) have an external voltage regulator. (Some tractors have the voltage regulators built into the alternators - I do not know about your tractor.) If you pull the battery cable off, after the switch is off, and you detect a palpable "snap" when the battery cable is removed from the post, you probably have a short circuit somewhere, or perhaps you have a circuit that is shorting out intermittently.

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James Williams

10-11-2003 17:52:53




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 Re: battery killer in reply to mike randolph, 10-11-2003 03:49:17  
Mike a lot of times if a battery is completly dead(I mean dead)a large battery charger will not detect the battery,you need to use a triklecharger to add a couple of volts to your battery than a regular charger will charge it.sounds like something is pulling all the voltage out of your battery



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49 Cubber!

10-11-2003 16:19:10




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 Re: battery killer in reply to mike randolph, 10-11-2003 03:49:17  
The obviuous answer would be to not leave the switch on right?However,I agree wilth Bill.Even a new battery,unless it is damaged or bad to start with,can be recharged.



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JB

10-11-2003 14:06:44




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 Re: battery killer in reply to mike randolph, 10-11-2003 03:49:17  
Hi, we have a 454D which is the same tractor but 3 cyl instead of 4. Since it is a Diesel when you leave the key on the only electrical load is the guages on the dash. Does your still have a generator ? If it does maybe the voltage regulator is not shutting off when the engine is stopped.

JB



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Bill Smith

10-11-2003 11:13:02




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 Re: battery killer in reply to mike randolph, 10-11-2003 03:49:17  
A good battery that is run down should be able to be recharged back to normal. A bad battery will either not charge up or if it does, it won't function properly when fully charged. I have had trouble re-charging a good battery when it is completely dead. It seems as if a battery needs a little bit of juice to except a charge. Sometimes I will use a pair of jumper cables and hook a completely dead battery up to a fully charged good battery, and then at the same time hook up the battery charger to the dead battery. This seems to somewhat prime the charge to the dead battery, and after a descent charge has been established you can unhook the jumper cables and the fully charged battery and then continue to recharge the low battery. If your deisel has dual battery's and both are fully dead but good battery's, I would disconnect them from tractor and individually charge each one. Also, a dead battery can be freeze damaged in below freezing weather. Most stores that carry battery's will have a battery tester that can test both the charge and load capability of a battery. Everybody claims that trickle charge is better on the battery than the maximum charge, but I believe I would use the maximum charge if trying to prime a charge using another battery. The trickel charge will take a real lenghthy time to fully charge a dead battery (like 24 hours). Just my 2 cents worth.

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Brad L

10-11-2003 19:47:56




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 Re: Re: battery killer in reply to Bill Smith, 10-11-2003 11:13:02  
The reason that a trickle charge will bring back a dead battery (sometimes)is that it is a constant current type charger so if there is any current flow possibilty the charger is able to force a charge back in. The automatic chargeres are a constant voltage type and if they don't if the battery is too dead they won't be able to force a charge to start.Once the trickle charger gets them started charging then either type of charge will work. Don't use a high constant current type of charger on a battery without a timer of some sorts or it will fry the battery. Also if you over discharge a battery you can actually reverse its polarity and then even if you do get it to recharge you will have really limited its useful life. Brad

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