The Ford Barn

Badpuppy · 03-20-2020, 09:10 AM

Self exciting one-wire alternators have an internal resistor that helps it to start charging at low RPM. This small load can discharge the battery over several weeks, so it's necessary to disconnect the battery when stored for an extended time. I would also recommend a trickle charger on the battery - connected or not - when parked.

30 Closed Cab PU · 03-20-2020, 09:12 AM

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cederholm · 03-20-2020, 01:30 PM

That is very useful info - thanks all!

~ Carl

1931 flamingo · 03-20-2020, 05:20 PM

After you get it repaired install a battery disconnect switch. This will eliminate the drain from the alt. That's what I did 9 years ago.
Paul in CT

cederholm · 03-21-2020, 06:20 AM

100% agreed!

Quote:

Originally Posted by 1931 flamingo

After you get it repaired install a battery disconnect switch. This will eliminate the drain from the alt. That's what I did 9 years ago.
Paul in CT

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Patrick L. · 03-21-2020, 07:49 AM

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I like the disconnect where you can just reach down and get to it easily.

03-20-2020, 09:10 AM	#21
Badpuppy Senior Member Join Date: Dec 2017 Location: Guthrie, OK Posts: 1,144	Re: 6v charging issue Self exciting one-wire alternators have an internal resistor that helps it to start charging at low RPM. This small load can discharge the battery over several weeks, so it's necessary to disconnect the battery when stored for an extended time. I would also recommend a trickle charger on the battery - connected or not - when parked.

03-20-2020, 09:12 AM	#22
30 Closed Cab PU Senior Member Join Date: Aug 2018 Posts: 2,332	Re: 6v charging issue ------------

03-20-2020, 01:30 PM	#23
cederholm Senior Member Join Date: Jun 2017 Location: Southport CT Posts: 318	Re: 6v charging issue That is very useful info - thanks all! ~ Carl

03-20-2020, 05:20 PM	#24
1931 flamingo Senior Member Join Date: May 2010 Location: new britain,ct 06052 Posts: 9,390	Re: 6v charging issue After you get it repaired install a battery disconnect switch. This will eliminate the drain from the alt. That's what I did 9 years ago. Paul in CT

03-21-2020, 07:49 AM	#26
Patrick L. Senior Member Join Date: May 2010 Location: Largo Florida Posts: 7,225	Re: 6v charging issue Sponsored Links (Register now to hide all advertisements) I like the disconnect where you can just reach down and get to it easily.