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Garden Tractors Discussion Forum

battery draining

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Dakota Wilson

02-09-2019 16:00:20

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So I have a 1968 raider 12 wheel horse tractor has a brand new battery has been running great now all of a sudden my battery seems dead Everytime I got to start it I have to put it on the charger then it will start and run great what could be causing my battery to drain?

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02-10-2019 13:13:04

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 Re: battery draining in reply to Dakota Wilson, 02-09-2019 16:00:20  
Depending on how the machine is wired the likely causes are the ignition switch or the Rectifier/Regulator. does it charge when running? If the voltage running is not higher than battery at rest, it's likely them RR. Could be that even if it charges, but more likely if not.

A meter in series between the battery post and ground will tell you if it is a parasitic drain. Repeat between the Reg's + lead and ground, then ignition switch and ground to isolate.

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Dakota Wilson

02-10-2019 17:33:32

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 Re: battery draining in reply to kencombs, 02-10-2019 13:13:04  
Once I get it on the charger it's runs fine I did notice my lights Dem down when it's running but other than that it runs fine hasn't died on me when I get it running yet

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02-12-2019 07:01:15

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 Re: battery draining in reply to Dakota Wilson, 02-10-2019 17:33:32  
Dimming lights may indicate that it's not charging. YOu really need to check the voltage, at rest and running.

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02-09-2019 18:25:25

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 Re: battery draining in reply to Dakota Wilson, 02-09-2019 16:00:20  
Does that Raider 12 have a starter/generator on the engine?

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Dakota Wilson

02-10-2019 07:12:17

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 Re: battery draining in reply to t.r.k., 02-09-2019 18:25:25  
It just has a small starter on it

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02-09-2019 16:26:50

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 Re: battery draining in reply to Dakota Wilson, 02-09-2019 16:00:20  
Conductive corrosion and debris in the ignition switch is a common cause of battery draining as is a failed rectifier/voltage regulator.

NOT sure if this is the exact wiring for you machine, but FWIW...

As to testing the rectifier/regulator, you can download the official engine manual for FREE at the link below...

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