Battery terminal's very hot

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acudanut

Battery terminal's very hot

Unread post by acudanut » September 2nd, 2021, 8:44 pm

Anyone ever touched their batteries posts. ?? Mine were ready to melt it seems. (fire no good). I wonder if my 60 amp alt. is charging too much. ???

lpcoating
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Re: Battery terminal's very hot

Unread post by lpcoating » September 2nd, 2021, 10:36 pm

TM tells how to check and adjust voltage. Just did the process on my A2.

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rickf
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Re: Battery terminal's very hot

Unread post by rickf » September 3rd, 2021, 9:28 am

Take them off, clean them and reinstall. They are most likely dirty. Also check charging voltage and make sure it is no more than 28 volts.
1964 M151A1
1984 M1008
1967 M416
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acudanut

Re: Battery terminal's very hot

Unread post by acudanut » September 3rd, 2021, 2:31 pm

Will do, the terminals were not tight at the battery's. I wonder if this was the issue... I will test the 60 amp Generator and see the output. Thanks Guys. I love this site for us die hard m-151 fans. Cheers.
I wonder if folks don't ever touch the Battery Terminals often...Me ? I always take the the wires off, after I am done playing. Only because it might me a few month before I start it again.

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D Pizzoferrato
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Re: Battery terminal's very hot

Unread post by D Pizzoferrato » September 7th, 2021, 3:11 pm

An inexpensive battery disconnect switch will save you a lot of work and headaches.

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Re: Battery terminal's very hot

Unread post by m3a1 » September 7th, 2021, 10:56 pm

Loose, or corroded battery terminals = resistance.
Resistance creates heat.

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svramselaar
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Re: Battery terminal's very hot

Unread post by svramselaar » September 8th, 2021, 8:26 am

hi
if you use the switch from the picture
look if the small termanals get open if the switch gets open
if so
take a dubbel wire from it to the alternator
put it between the connecter thin wire 568 alternator
this proteckt the alternator regulator if the switch is opend wen the engine runs
now the alternator stops working if open ( engine shut down also ) :D

george

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rickf
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Re: Battery terminal's very hot

Unread post by rickf » September 8th, 2021, 9:10 am

Glad you pointed that out George. I did not see that and have never seen that on a disconnect switch. i HAVE seen many fried alternators due to disconnect switches being shut off during running, same as pulling a battery terminal off to 'See if the alternator is good, it will keep running if it is". Yep it will, as it cooks the diodes and ruins the alternator. You always hear that line from old guys who used to do that with generators. Yes you can do it with a generator but NOT with an alternator.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

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svramselaar
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Re: Battery terminal's very hot

Unread post by svramselaar » September 9th, 2021, 6:47 am

hi
rickf
i use the one below for years now

https://races-shop.com/toggle-switches/ ... h-fia.html

normaly if the kilswitch is acsedently opend the engine runs with power from the alternator now it stops
there are two small switches one opens and the other closes if the switch is used

george

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Re: Battery terminal's very hot

Unread post by Mark » September 9th, 2021, 6:57 am

My disconnect switch is connected to the battery ground cable(which is a dozer on/off switch).right by the front of the passenger seat.I suppose a faulty/shorted ground switch would still complete the circuit to energize the circuits?
mark


1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416

acudanut

Re: Battery terminal's very hot

Unread post by acudanut » September 10th, 2021, 11:05 am

My Terminals are hot to the touch when the jeep is running.

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rickf
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Re: Battery terminal's very hot

Unread post by rickf » September 10th, 2021, 1:08 pm

Have you checked the charging voltage? And what is the condition of the batteries? Does the vehicle start normally without a jump?
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

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svramselaar
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Re: Battery terminal's very hot

Unread post by svramselaar » September 10th, 2021, 4:31 pm

hi

heat is alwais a resistance at a terminal
clean them no problems
it is the amps from starting
the law from Ohm U voltage = I amps x R resistance
W watt = U X I
736 Watt = 1 Hp
1,163 Watt [W] = 1 kcal/h

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Re: Battery terminal's very hot

Unread post by Cobra5 » September 11th, 2021, 10:20 am

acudanut wrote:
September 10th, 2021, 11:05 am
My Terminals are hot to the touch when the jeep is running.
Are you still having this issue? If your running lead acid batteries, there could be a short in one of your battery plates. I just went through this yesterday on a battery in my car. All cells were charged and the car ran fine until I shut it off at the gas station and it wouldn't start. Had to have the wife bring my jump pack. She also told me I didn't have any turn signals on the way home. This is the 4th battery on 4 different vehicles in the past 3 years. One battery was only 6 months old so even new batteries can have this issue. If you have a load tester check each battery.

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Re: Battery terminal's very hot

Unread post by Mark » September 11th, 2021, 1:21 pm

They don't make anything like they used to(made to last a life time!!)Yes I had a battery short out in the plates
Last edited by Mark on September 11th, 2021, 6:43 pm, edited 1 time in total.
mark


1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416

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