8V battery upgrade on tractor, 14V on race car?

Knocky · 06-18-2011, 09:06 AM

I can't find much discussion on the 14 volt batteries (XS makes a couple) Looks like most racers upgrade to the 16v systems from 12v.
Do ya'll think the 14 volt is a good upgrade/compromise ?

Alternator is an East Coast mini. Engine mgt syst is Mopar (AEM) computer and they recommend up to 14.8 volts.

We were putting a battery on our 1938 Allis Chambers 6v tractor, I found out it is (was) common for farmers to use an extra cell 8v upgrade(I had never heard of) and that's what we used-works great!

Thanks, MWNorris

Dragsinger · 06-18-2011, 08:50 PM

I have no experience with 14 volts but it seems reasonable that it would be a good upgrade. My question is about charging a 14 volt battery; How is that accomplished?

Bob Pagano · 06-18-2011, 10:14 PM

Dont most 100amp 12 volt alts put out 14.2 volts

Knocky · 06-18-2011, 11:02 PM

Yes Bob, that is my thinking. The alt should keep it up at the track & there is a 14V charger available...On the other hand it does not have as many cranking amps as a heavy duty wet cell 12v...

Mark

Dragsinger · 06-18-2011, 11:21 PM

here is my concern; to charge a 12 volt battery requires about 14.5 volts. To charge a 16 volt battery requires about 18.5 volts. So, it is reasonable to estimate it will take about 16.5 volts to charge a 14 volt battery. Thus a dedicated alternator and charger will be required.

Knocky · 06-19-2011, 12:08 AM

Yes, I see Larry, for full charging of the 14v. The 14v is the gell cell type and will drop off quick if gets low from what i understand. I'm leaning toward starting off with a proven heavy duty , high amp 12v battery w/ the mini alternator and keep the battery fully charged before heading to track!

06-18-2011, 09:06 AM	#1
Knocky Junior Member Join Date: Sep 2010 Posts: 32 Likes: 0 Liked 0 Times in 0 Posts	8V battery upgrade on tractor, 14V on race car? I can't find much discussion on the 14 volt batteries (XS makes a couple) Looks like most racers upgrade to the 16v systems from 12v. Do ya'll think the 14 volt is a good upgrade/compromise ? Alternator is an East Coast mini. Engine mgt syst is Mopar (AEM) computer and they recommend up to 14.8 volts. We were putting a battery on our 1938 Allis Chambers 6v tractor, I found out it is (was) common for farmers to use an extra cell 8v upgrade(I had never heard of) and that's what we used-works great! Thanks, MWNorris

06-18-2011, 08:50 PM	#2
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,759 Likes: 5 Liked 99 Times in 60 Posts	Re: 8V battery upgrade on tractor, 14V on race car? I have no experience with 14 volts but it seems reasonable that it would be a good upgrade. My question is about charging a 14 volt battery; How is that accomplished? __________________ Larry Woodfin 471W

06-18-2011, 10:14 PM	#3
Bob Pagano VIP Member Join Date: Jun 2002 Location: New Holland, PA Mooresville,NC Posts: 1,163 Likes: 212 Liked 16 Times in 11 Posts	Re: 8V battery upgrade on tractor, 14V on race car? Dont most 100amp 12 volt alts put out 14.2 volts __________________ Bob Pagano A/SA

06-18-2011, 11:02 PM	#4
Knocky Junior Member Join Date: Sep 2010 Posts: 32 Likes: 0 Liked 0 Times in 0 Posts	Re: 8V battery upgrade on tractor, 14V on race car? Yes Bob, that is my thinking. The alt should keep it up at the track & there is a 14V charger available...On the other hand it does not have as many cranking amps as a heavy duty wet cell 12v... Mark

06-18-2011, 11:21 PM	#5
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,759 Likes: 5 Liked 99 Times in 60 Posts	Re: 8V battery upgrade on tractor, 14V on race car? here is my concern; to charge a 12 volt battery requires about 14.5 volts. To charge a 16 volt battery requires about 18.5 volts. So, it is reasonable to estimate it will take about 16.5 volts to charge a 14 volt battery. Thus a dedicated alternator and charger will be required. __________________ Larry Woodfin 471W

06-19-2011, 12:08 AM	#6
Knocky Junior Member Join Date: Sep 2010 Posts: 32 Likes: 0 Liked 0 Times in 0 Posts	Re: 8V battery upgrade on tractor, 14V on race car? Yes, I see Larry, for full charging of the 14v. The 14v is the gell cell type and will drop off quick if gets low from what i understand. I'm leaning toward starting off with a proven heavy duty , high amp 12v battery w/ the mini alternator and keep the battery fully charged before heading to track!