learned something useful in chem class
03-15-2002, 09:15 PM
#1
learned something useful in chem class
OT
my chemistry professor said something the other
day about jump starting a car. he said ure suppose
to only clamp the positive on the bad battery and put
the other clamp on the metal part of the car....and
clamp the other end of the cable to
both + and - on the good battery...i never knew this
well he said something about if u clamp both + and -
on the bad battery (like how most ppl do) there's a
risk of a lil explosion....i'm not too good in chem
so i dont really understand wat he said but it's something
with the sparks and the hydrogen that can cause an
esplosion
my chemistry professor said something the other
day about jump starting a car. he said ure suppose
to only clamp the positive on the bad battery and put
the other clamp on the metal part of the car....and
clamp the other end of the cable to
both + and - on the good battery...i never knew this
well he said something about if u clamp both + and -
on the bad battery (like how most ppl do) there's a
risk of a lil explosion....i'm not too good in chem
so i dont really understand wat he said but it's something
with the sparks and the hydrogen that can cause an
esplosion
03-15-2002, 09:18 PM
#2
Senior Member
Join Date: Dec 2001
Posts: 814
Re: learned something useful in chem class
Originally posted by MaximaPower
OT
my chemistry professor said something the other
day about jump starting a car. he said ure suppose
to only clamp the positive on the bad battery and put
the other clamp on the metal part of the car....and
clamp the other end of the cable to
both + and - on the good battery...i never knew this
well he said something about if u clamp both + and -
on the bad battery (like how most ppl do) there's a
risk of a lil explosion....i'm not too good in chem
so i dont really understand wat he said but it's something
with the sparks and the hydrogen that can cause an
esplosion
OT
my chemistry professor said something the other
day about jump starting a car. he said ure suppose
to only clamp the positive on the bad battery and put
the other clamp on the metal part of the car....and
clamp the other end of the cable to
both + and - on the good battery...i never knew this
well he said something about if u clamp both + and -
on the bad battery (like how most ppl do) there's a
risk of a lil explosion....i'm not too good in chem
so i dont really understand wat he said but it's something
with the sparks and the hydrogen that can cause an
esplosion
03-15-2002, 09:24 PM
#3
Re: Re: learned something useful in chem class
i feel like a big idiot for not knowing that...i never
had to jumpstart my car b4 and i'm glad i haven't cus i woulda
jus clamped both of them like a foool
had to jumpstart my car b4 and i'm glad i haven't cus i woulda
jus clamped both of them like a foool
Originally posted by 97BlackMax
yeah, that is correct...you're supposed to clamp the negative end that would go to the bad battery onto a metal part to ground the system...there's been cases of exploding batteries when people did not follow that process...not exactly fun
yeah, that is correct...you're supposed to clamp the negative end that would go to the bad battery onto a metal part to ground the system...there's been cases of exploding batteries when people did not follow that process...not exactly fun
03-15-2002, 10:45 PM
#5
Senior Member
Join Date: Dec 2000
Posts: 613
Re: Re: Re: learned something useful in chem class
Originally posted by MaximaPower
i feel like a big idiot for not knowing that...i never
had to jumpstart my car b4 and i'm glad i haven't cus i woulda
jus clamped both of them like a foool
i feel like a big idiot for not knowing that...i never
had to jumpstart my car b4 and i'm glad i haven't cus i woulda
jus clamped both of them like a foool
03-15-2002, 11:57 PM
#8
Senior Member
Join Date: Feb 2001
Posts: 468
My belief is that as long as the last connection is NOT on battery negative terminal BUT on some metal part away from battery, it should be fine. That is, you can connect jump cable onto both bad battery's terminals first. Remember that only the last connection will make the circuit complete therefore the last contact will have some spark to cause potential explosion. It doesn't matter which battery to connect first.
03-16-2002, 07:28 AM
#9
Did this on my old Sentra, but that had a carb.
Don't know if you can do this with the new fuel inj. engines, anyone?
Don't know if you can do this with the new fuel inj. engines, anyone?
Originally posted by StrongIsleMax
I remember in my uncle's old Hyundai Excel 4-speed, I would help him push start it because the battery would always die. Is this possible with newer manual tranny Maxima's? ...just in case my battery ever dies.
I remember in my uncle's old Hyundai Excel 4-speed, I would help him push start it because the battery would always die. Is this possible with newer manual tranny Maxima's? ...just in case my battery ever dies.
03-16-2002, 07:47 AM
#11
Senior Member
Join Date: Oct 2000
Posts: 866
Yes, you can push start a Maxima. My starter died on me last year. Lucky for me, I was parked on an incline, facing uphill. I put the car in reverse, turned the ignition switch to the ON position, let off the brake, and started rolling backwards. When I had a little momentum going, I quickly released the clutch. The car came to life immediately. I did not touch the gas pedal until the car started...
You can't do that on an automagic.
You can't do that on an automagic.
03-16-2002, 09:42 AM
#12
Originally posted by StrongIsleMax
I remember in my uncle's old Hyundai Excel 4-speed, I would help him push start it because the battery would always die. Is this possible with newer manual tranny Maxima's? ...just in case my battery ever dies.
I remember in my uncle's old Hyundai Excel 4-speed, I would help him push start it because the battery would always die. Is this possible with newer manual tranny Maxima's? ...just in case my battery ever dies.
03-16-2002, 10:10 AM
#13
Originally posted by dmbmaxima88
i jumped cars many time, including my 95 a couple times and i always do it the wrong way, i'm living on the edge, you can help yourself from falling.
i jumped cars many time, including my 95 a couple times and i always do it the wrong way, i'm living on the edge, you can help yourself from falling.
03-16-2002, 10:16 AM
#14
Senior Member
Join Date: Dec 2001
Posts: 814
Originally posted by Newman96SE
i tried to do it the "right" way the first time i ever tried to jump a car and it didnt work. so i just connected both terminals of both cars and it worked. so now i just do it the wrong way everytime.
i tried to do it the "right" way the first time i ever tried to jump a car and it didnt work. so i just connected both terminals of both cars and it worked. so now i just do it the wrong way everytime.
...i've never had to jump my own car yet (*knock on wood*)...but i've jumped a couple of my friends cars, and the "right way" has never failed me...this is how i do it:1-connect positive clamp to good battery's positive terminal
2-connect other positive clamp to bad battery's positive terminal
3-connect negative clamp to good battery's negative terminal
4-clamp other negative clamp to metal piece on car of dead battery to ground
never failed me yet
03-16-2002, 10:00 PM
#15
Donating Maxima.org Member
Join Date: Jan 2002
Posts: 245
If I'm not mistaken the reason you connect the ground cable to a location other than the dead batteries negative terminal is to avoid creating a spark immediately overtop the battery that could cause an explosion.
White96MaxSE
White96MaxSE
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