Good jumper pack

[Oliverguy-NE Ohio]

I have an Oliver 77 that is still 6v and it just can't get it started in the winter. I am going to 12v convert it in spring when it gets warmer (don't have a heated building) but I still use it in winter. For the rest of winter I plan on just jump starting by grounding and putting it directly to the starter since you can't jump 12v to 6v. Is there any major issues with this? Also is 1500 amps enough or should I get a 3000 amp one? Do you have any recommendations on a certain brand or kind of jump starter I should get? Like I said before this is just to get me through the winter so it's just temporary. Thanks for any ideas!

 

[wore out]

I have an Oliver 77 that is still 6v and it just can't get it started in the winter. I am going to 12v convert it in spring when it gets warmer (don't have a heated building) but I still use it in winter. For the rest of winter I plan on just jump starting by grounding and putting it directly to the starter since you can't jump 12v to 6v. Is there any major issues with this? Also is 1500 amps enough or should I get a 3000 amp one? Do you have any recommendations on a certain brand or kind of jump starter I should get? Like I said before this is just to get me through the winter so it's just temporary. Thanks for any ideas!

There was a thread about this very topic down on TT just a few days ago.

https://forums.yesterdaystractors.com/threads/jump-box-recommendation.1773602/

 

[BarnyardEngineering]

For this application, those lightweight handheld lithium boosters will NOT work. They have a protection circuit built in that prevents them from working if the voltage from the "dead" battery is too low.

It appears that the 77 has a newer style solenoid type starter, with the starter on the solenoid. So hooking the booster pack to the starter will be no different than hooking the 12V booster pack directly to the 6V battery.

If you have a way to keep a battery charger/maintainer on the tractor's battery, you could do a partial conversion right now by simply replacing the 6V battery with a 12V, and adding a ballast resistor to the power wire going to the coil. It won't charge, and the lights will pop if you turn them on, but at least it will wheel over and fire better. The battery will have plenty of power to start the tractor several times and run it for days on end without a charge if all that it's powering is the coil.

 

[Oliverguy-NE Ohio]

Ok thanks will do that

 

[Mark-Ia]

If your tractor is 6v, make sure the battery cables are 00 size. The small automotive cables won't work well.

 

[Oliverguy-NE Ohio]

I got the biggest ones at tractor supply

 

[Janicholson]

I will add that if you have a waggon or hand truck/dolly, buying a 12v battery of 650CCA right now will work, and save spending on a jump pack.
The 12v jump to the starter must go to the starter side of the solenoid to prevent the 12v from getting into the existing 6v system. that momentary contact at that terminal should be fine if you need to give 12v to the S terminal on the solenoid that is OK. Jim