Battery booster

I know we used to boost 6 volt tractors with 12 volt vehicles years ago. Has anyone ever tried to boost 12 volt systems with 24 volts? I realize this would probably be a bad idea on the new computerized vehicles but how about older 12 volt systems like on tractors? I have a chance to get a battery booster pack that has 12 and 24 volt capability is why I am asking. Carlyle brand from NAPA. 👨‍🌾
 
When you had a 6 volt system that was dead and your only option for today was to boost it with a 12 volt, you figured out how to get the job done as close to safely as you could.

If you are buying a 12/24 volt charger then only a fool would use the 24 volt setting to try to charge/ start a 12 volt setup?

If you had livestock to feed and it was 0 degrees snow storm and your 12 volt tractor was dead and you had a 24 volt industrial loader idling nearby as your only option, you probably would try to figure out a way to best as you could run the 12 volt starter on a 24 volt boost.

In the past old components were built heavy duty and robust and putting 12 volts to a 6 volt starter didn’t cause many problems.

In today’s world things are engineered just good enough to get by, and putting 24 volts to a 12 volt system is quite a bit bigger of a deal, much more stress. Ignoring the more modern electrical systems and computers and displays.

in both cases you are doubling the voltage, but if you look at it as adding 6 more volts verses adding 12 more volts, it’s a much bigger step?

Paul
 
When you had a 6 volt system that was dead and your only option for today was to boost it with a 12 volt, you figured out how to get the job done as close to safely as you could.

If you are buying a 12/24 volt charger then only a fool would use the 24 volt setting to try to charge/ start a 12 volt setup?

If you had livestock to feed and it was 0 degrees snow storm and your 12 volt tractor was dead and you had a 24 volt industrial loader idling nearby as your only option, you probably would try to figure out a way to best as you could run the 12 volt starter on a 24 volt boost.

In the past old components were built heavy duty and robust and putting 12 volts to a 6 volt starter didn’t cause many problems.

In today’s world things are engineered just good enough to get by, and putting 24 volts to a 12 volt system is quite a bit bigger of a deal, much more stress. Ignoring the more modern electrical systems and computers and displays.

in both cases you are doubling the voltage, but if you look at it as adding 6 more volts verses adding 12 more volts, it’s a much bigger step?

Paul
The term I used was boost NOT charge. 👨‍🌾
 
The term I used was boost NOT charge. 👨‍🌾

The term I used was boost NOT charge. 👨‍🌾

I don’t have any electrical problems. I was just asking a question. Sometimes in the winter at zero degrees you can use a little more punch to get a diesel engine to start.
🧑‍🌾
If have to do this winter boost you got problems with your starting system ,suggest a voltage drop test. That will pin point the issue . Put in mfg. winter oil recommendations.
 
Have an old friend that has bad blue colored scars on his face from acid burns caused by an exploding battery. He tried to jump start a 12 volt system using 24 volts.

Think I would look into adding more cranking amps by connecting two batteries parallel to keep the 12 volts but double the CCA.
 
I have a large NOCO brand booster, starts a diesel just fine. Any more than that it's time for a battery or a tow truck. I wouldn't put 24v to a 12v system.
 
I watch will it start videos occasionally. Most of the guys have the 12/24 booster packs. I see them occasionally jump a 12 volt system with 24 volts. They do it with the battery disconnected however. If I was clamping to the battery, I would stick with the setting the system was. The few times I've jumped my 6 volts with 12, I do it directly to the starter. I only do it in a pinch and have been lucky so far.
 
When we used to jump 6 with 12 we never connected to the battery. We just connected the ground to the starter body and applied power to the starter post without engaging the starter switch or relay. That way only the starter got 12 volts while the rest of the system stayed on 6. That was on systems with the starter isolated from anything else like a Farmall M or similar. As long as the relay wasn't energized or the push button was left open there was no connection to anything else.
 
Very easy to jump 12 with 24. Just hook up one battery and make it 12 to 12.
Given the high efficiency of the jump pack when matched to the proper voltage, I don't know why one would need to double the voltage.

Besides all that, with their built -in fail safes, I doubt the pack would even power up if it sensed incorrect voltage.
 
Given the high efficiency of the jump pack when matched to the proper voltage, I don't know why one would need to double the voltage.

Besides all that, with their built -in fail safes, I doubt the pack would even power up if it sensed incorrect voltage.
You are likely right. They sense reverse polarity so it would be reasonable to think they'd sense incorrect voltage.
 
Used to jump a lot of caterpillar 24 volt equipment with the 12v service truck you just do one battery at a time.

Someone got the bright idea to wire the yard wheel loader to jump cables permanently that stuck out the back. They had these large blade connectors which were generally safe.

One side was 24 one was 12 and they were labeled. New yard man connected the 12 v side to a 24 volt D6 and burnt the cable ends off the yard wheel loader(D6 was fully charged by the way it was in for a different reason I flipped the master power on then she lit right up)

Didn’t truly hurt anything except the cable and connector because wiring was the add on stuff but the melted cables were a good reminder to pay attention when you hook your pickup up to the dozer especially in the winter because if you kill your ride home you could have to wait awhile with a dead machine and a dead truck.

I wouldn’t try it with a 12 on a 6 volt especially anything with EI

I would assume 12v on 6v would cause the same phenomenon unless you have 2 6 volt batteries if that was the case I’d just pull a good battery out and boost it with that. A lot of things were like that 4440 and my 4020 are that way it saved on the copper cable wired in series. The 12 volt 2 cylinders would be as well

A specific 24v booster pack would not be worth the investment IMO for almost anyone and the amps required to turn over what you want to turn…we did it but the pack was 2 D8 batteries on a heavy cart (probably around 4000cca?)that was the booster pack it would get charged back up with a normal charger I see a lot of and own a 2000amp booster but boy that’s asking alot out of a lithium battery you can hold in your hand. A quick google search shows your 24volt options are out there but expensive looks like an entry one at 499…that may or may not start your tractor.
 
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back in 1969 we had a 40 below morning and my 58 chevy wouldnt turn over . I jumped it with a 66 gto . It would barely turn over so i hooked a 65 chevy pick up on it . I stood back and attched cable on pickup . My dad hit the starter. She spun over like it was a 70 degree day . We figured we would either start or blow the battery
 
This is the kind of thing that has people asking why their charging system no longer works and/or why batteries don't last longer. If you need to operate in sub-zero weather every day,keep machine indoors where it's dry,hooked to a maintainer and block heater.
 
I know we used to boost 6 volt tractors with 12 volt vehicles years ago. Has anyone ever tried to boost 12 volt systems with 24 volts? I realize this would probably be a bad idea on the new computerized vehicles but how about older 12 volt systems like on tractors? I have a chance to get a battery booster pack that has 12 and 24 volt capability is why I am asking. Carlyle brand from NAPA. 👨‍🌾
Our Napa dealer won't sell us that Carlyle brand, they sold Bailey my son some other brand, they have had lots of warranty work on that brand. GG
 
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