8 Volt Battery

Lokel Yokel · Jul 3, 2015

I'm sure everybody knows this.

You can buy an 8 volt battery at Napa. They work great in our tractors.

Dell (WA) · Jul 3, 2015

Lokel Yokel.........here we go again. Yer 6-volt genny will NOT charge the 8-volt batter. You end up havin' a discharged 8-volt battery. When was the LAST time you saw an 8-volt battery charger??? Gittchur 6-volt ignition system fixed ...or... convert to 12-volts where at least you kenn charge yer battery with 12-volt alternator. ......respectfully, Dell, a 12-volt advocate fer the right reasons. That said, I haven't found the right reason fer my eazy starting 6-volt 52-8N

Bruce (VA) · Jul 4, 2015

Your 6 volt generator puts out 7.5 volts.
It takes 9.5 volts to charge an 8 volt
battery. How are you charging an 8v
battery?

HCooke · Jul 4, 2015

I bought an 8N once that had a new 8 volt battery in it. Worked great for a couple of months. By that time the battery was discharged and
would not start the tractor anymore. Replaced it with a 6 volt battery and that was ten years ago. Still startin and runnin. The other are
right. there is no way the generator on an 8N can charge an 8 volt battery.

RET-N-IA · Jul 4, 2015

I also bought my last 8N with an 8V battery in it. I realized quickly it was to compensate for the trashed front bearing in the starter.I had the unit repaired by a local motor repair guy for 60 bucks. He went thru the whole thing and all else was good. I kept the batt. in it cause it never caused any problems and the lights were nice and bright too. I went out to check just now before my response to you guys and found at idle my batt. voltage is 8.5. At one third throttle it's at 9.0 volts.If the generator isn't charging why the 9V.I was kind of curious when I first got this tractor if anything was modified to use the 8V batt. but couldn't see anything unusual in there. My question,could there have been a resistor wired in somewhere? I wonder what it would read at WOT.I think I'll check later. Oh and also it only gets a charger plugged in in the winter time.Doesn't need it the rest of the year. It gets charged using an 8 VOLT deltran battery tender.They come in just about any rated voltage output you need for various batteries. I was too curious to wait and checked voltage at 3/4 throttle and it was 9.2. Well I'm confused.

Dean · Jul 4, 2015

It is possible to adjust the voltage regulator such that the generator will properly charge an 8V battery but this is largely a lost art.

Perhaps someone adjusted yours before you bought it.

Dean

RET-N-IA · Jul 4, 2015

Yea Dean,that's kinda what I was thinking. The guy I bought it from was the fleet mechanic for the local Pepsi distributor. He was pretty sharp. A UTI graduate.I wonder why he just didn't fix the starter. Go figure. HAH!

Tom New Jersey · Jul 4, 2015

I just replaced the 6V battery in my 801 it has been weak for a year or 2, needed to be charged every couple of months. It was honestly an 04 battery, I could not believe it. It was a Deka, if that is the correct spelling made in USA.

kylemorley · Jul 4, 2015

But what about the cut-out equipped 9n and the 2n which, best I can recall, don't have any voltage control at all? They as a result should be quite happy fully charging an 8V battery.

Actually I suspect there is enough slop in the system to of a typical 8n to allow an 8V battery to work on an 8n, but not necessarily any 8n, and not necessarily to full voltage. That would explain why some people love and others hate 8V batteries.

Tom N MS · Jul 4, 2015

Deka are suppose to be good ones-just had a $7000 one installed in an electric paper clamp lift at work..Folks on the forum have recommended and sang their praises before..

Dell (WA) · Jul 4, 2015

.......NO Kyle, that ain't how it works. On the 9N-2N's YOU are the voltage regulator. YOU adjust the 3rd brush on the back of the 11-amp genny so you see about 3-5 amps CHARGE (+) at 1/3-throttle on yer dashboard AMP-meter. TOO many AMPS will BOIL the water outta yer 6-volt battery. Wanna guess what DRY battery cells do??? They WARP and SHORT out. Generally speaking, the 2-terminal cutout on the 9N/2N has to be "polarized" everytime you replace the battery. WHY? 'cuz shadetree mechanic wanna-bees will install the 6-volt battery NEGATIVE (-) ground just like their BelchFire-V8's. As I said, the 2-terminal roundcan cut-out needs to be re-polarized everytime you replace the battery. Surprizingly enuff, the 6-volt genny will charge NEGATIVE (-) ground when correctly polarized with the 2-terminal round can cut-out. ENGINE OFF. Me? I use a pair of pliers handles, you can use bailin' warr iff'n you want. .......HTH, electrical Dell

Lokel Yokel · Jul 7, 2015

Ive been offline. I've been using an 8 volt battery for years and it seems like it works better than a 6 volt did.

I was the first person to put one in my tractor so I don't think any adjustments had been made to the generator.

8 Volt Battery

Lokel Yokel

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Dell (WA)

Well-known Member

Bruce (VA)

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HCooke

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RET-N-IA

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Dean

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RET-N-IA

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Tom New Jersey

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kylemorley

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Tom N MS

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Dell (WA)

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Lokel Yokel

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