Never jump a truck battery from a car battery?
Just be careful, things and go wrong quick.....
My dad and uncle had a battery explode on them when I was small. Don't know what happened, I was inside the house and heard what sounded like a shotgun blast. Went outside and my dad and uncle were rolling around on the grass with battery acid all over them. My dad got the worst of it and ended up with bits of plastic in his eyes, luckily he recovered. Needless to say, my dad won't jump start any battery, he'll lend you the jumper cables, but from there you're on your own
My dad and uncle had a battery explode on them when I was small. Don't know what happened, I was inside the house and heard what sounded like a shotgun blast. Went outside and my dad and uncle were rolling around on the grass with battery acid all over them. My dad got the worst of it and ended up with bits of plastic in his eyes, luckily he recovered. Needless to say, my dad won't jump start any battery, he'll lend you the jumper cables, but from there you're on your own
What happend to your dad is he tried to jump a frozen battery and it arched which is what caused it to explode. I used to jump our International five ton flatbeds with my pick up all the time. The only thing that you really have to worry about on a computer controlled vehicle is the initial voltage spike. To counter this turn on something that will absorb the spike like the heater or the head lights. If you are not carefull the voltage spike from the running vehicle can do all sorts of weird crap to the pcm and other sensitive electronincs on a newer vehicle. If you really want to be safe buy a booster pack they tend to a little more gentle on sensitive electronics.
Originally Posted by dsq3973
They can arch if you they are not clean and have alot of crap on them. I was driving a golf cart and had one explode while I was sitting on it.

Originally Posted by Galaxy
Lets get passed all this trivial conversation about batteries and crap and get to the root of the real problem here...what was your wife doing "questioning" you in the first place??? 

Originally Posted by BigBadRedLiftedFordMan
I had never heard of this before, but my truck battery died today and I was going to jump the truck off my wife's Infiniti G35. She's extremely protective of her car, and she calls her father, who is a former mechanic, on whether or not she should allow* me to do this.
*- Don't even get me started.
He says absolutely not. The truck's draw from the booster car's alternator will be too strong and will fry the booster car's alternator.
I have never heard of such a thing. I think it does make sense to some degree, but I would think you would have to be constantly cranking the dead car to do such damage to the booster car's alternator.
Thoughts?
PS- I just bought a new battery. My other one was 3 years old anyways and probably needed to replaced.
*- Don't even get me started.
He says absolutely not. The truck's draw from the booster car's alternator will be too strong and will fry the booster car's alternator.
I have never heard of such a thing. I think it does make sense to some degree, but I would think you would have to be constantly cranking the dead car to do such damage to the booster car's alternator.
Thoughts?
PS- I just bought a new battery. My other one was 3 years old anyways and probably needed to replaced.
Wifey needs to hand you the keys for a "protective of her car" beat session on her Infiniti thing. That ought to teach her to call daddy on things as commonly done as jumping a dead battery. C'mon honey, I've jumped high performance cars from those portable jump boxes. Doesn't say much for infiniti if it can't even jump a dead battery
I don't know how many times I had to go boost moms caravan when she went through her leaving the lights on phase. I have an 1150 cranking amps battery and moms is about an 800 and she hasn't had any problems with anything yet.
You father inlaw cant stand you maybe?
Sound like next time the wife car breaks down you shold tell her to call him..
Sound like next time the wife car breaks down you shold tell her to call him..
Originally Posted by BigBadRedLiftedFordMan
I had never heard of this before, but my truck battery died today and I was going to jump the truck off my wife's Infiniti G35. She's extremely protective of her car, and she calls her father, who is a former mechanic, on whether or not she should allow* me to do this.
*- Don't even get me started.
He says absolutely not. The truck's draw from the booster car's alternator will be too strong and will fry the booster car's alternator.
I have never heard of such a thing. I think it does make sense to some degree, but I would think you would have to be constantly cranking the dead car to do such damage to the booster car's alternator.
Thoughts?
PS- I just bought a new battery. My other one was 3 years old anyways and probably needed to replaced.
*- Don't even get me started.
He says absolutely not. The truck's draw from the booster car's alternator will be too strong and will fry the booster car's alternator.
I have never heard of such a thing. I think it does make sense to some degree, but I would think you would have to be constantly cranking the dead car to do such damage to the booster car's alternator.
Thoughts?
PS- I just bought a new battery. My other one was 3 years old anyways and probably needed to replaced.
There is a certain amount of truth to this.
The way to do it with min. risk is to connect the batteries without the helper car running.
Let some of the charge equalize into the dead battery for about 10 minutes.
This reduces the charge the doner car has to put out.
Then start the doner car and let it put some charge into the low battery before trying to crank the truck.
Starting the doner car takes charge out of it's battery as well as seeing the low battery but treats them as one battery for that period of time.
This is an attempt to keep the doner alternator from trying to charge a flat battery with huge currents that could be more than it's designed to output.
.
As a side note, almost all replacment alternators have an instruction sheet that tells you to put a charge into the battery before starting with a helper source so the new alternator is not lost from outputting more than it is designed to handle. Remember that the alternator regulator must key it's output from the charge level of the battery. If the battery is flat or very low, the regulator can run wide open and damage the alternator before the battery charge level rises and begins to taper down...
The way to do it with min. risk is to connect the batteries without the helper car running.
Let some of the charge equalize into the dead battery for about 10 minutes.
This reduces the charge the doner car has to put out.
Then start the doner car and let it put some charge into the low battery before trying to crank the truck.
Starting the doner car takes charge out of it's battery as well as seeing the low battery but treats them as one battery for that period of time.
This is an attempt to keep the doner alternator from trying to charge a flat battery with huge currents that could be more than it's designed to output.
.
As a side note, almost all replacment alternators have an instruction sheet that tells you to put a charge into the battery before starting with a helper source so the new alternator is not lost from outputting more than it is designed to handle. Remember that the alternator regulator must key it's output from the charge level of the battery. If the battery is flat or very low, the regulator can run wide open and damage the alternator before the battery charge level rises and begins to taper down...



i had one explode onetime just by turning the key.