General Maxima DiscussionThis a general area for Maxima discussions for all years. For more specific questions, visit one of the generation-specific forums.
Welcome to Maxima.org!
Welcome to Maxima.org,
You are currently viewing our forum as a guest, which gives you limited access
to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join Maxima.org today!
Batteries produce a small amount of hydrogen gas as the liquid inside of them evaporates. Theoretically, if the battery has been sitting there dead for a while then the hydrogen could be dense enough to explode. Since the negative or ground on the dead car is the last to be connected, there is going to be a spark. You don't want that spark to come in contact with hydrogen and go boom.
Before any hydrogen is produced the battery has to have been setting long enough for the liquid inside it to start evaporating. Were talking weeks if not months and not over-night or a weekend. I have always just put it on the negative post of the dead car without thinking. But its a good practice not to because of the possibility of the BOOM.
Actually when the battery recharges hydrogen gas is created. If you've ever had a battery charger fail and stay on.... holy ****! Shop smelled like rotten eggs for a whole day.
Yes, he's right, it's for not wanting the spark to happen near the battery, they tought us this at school as well.
__________________
Gatorade on my keyboard FTL.
5th & 5.5 gen VLSD Auto transmissions for sale, PM me.
i was watching motor week and they had a skit on jumping a car
on the good battery
attach the red cable to the pos and the black to the neg
on the dead battery
attach the red cable to the pos and the black to the frame or block BUT NEVER the the neg
they didnt say why but i always have done pos to pos and neg to neg
anyone ever hear of that?
The main reason is because the engine block provides a MUCH better ground than the negative terminal. the body is usually a dumb place to put it because it is typically aluminum.
__________________
Quote:
Originally Posted by G4nismo
i heard search is pretty good...
2002 Maxima SE - 6spd, CAI, 08 Maxima wheels, more on the way 1997 Maxima GLE - Stock and sold
1991 Sentra SE-R 18" Konig Toxxin's, HKS Short ram air, HKS muffler, short shifter, interior redone with red crushed velvet, and Alpine security. SOLD
1996 Maxima GXE - 5spd, A33 wheels, CAI, Y-Pipe - Sold
1975 CB550F Supersport -sold
1981 GS550T - Sold
1981 GS850L - Love every minute
198o GS750EX 16V - in the process
The main reason is because the engine block provides a MUCH better ground than the negative terminal. the body is usually a dumb place to put it because it is typically aluminum.
The body is aluminum?
__________________ Chumps try to imitate but can never duplicate
377hp 338tq
The main reason is because the engine block provides a MUCH better ground than the negative terminal. the body is usually a dumb place to put it because it is typically aluminum.
how would the block provide a better ground then the actual ground?
aluminum?
i think ill take the answer : Actually when the battery recharges hydrogen gas is created.
2002 Maxima SE - 6spd, CAI, 08 Maxima wheels, more on the way 1997 Maxima GLE - Stock and sold
1991 Sentra SE-R 18" Konig Toxxin's, HKS Short ram air, HKS muffler, short shifter, interior redone with red crushed velvet, and Alpine security. SOLD
1996 Maxima GXE - 5spd, A33 wheels, CAI, Y-Pipe - Sold
1975 CB550F Supersport -sold
1981 GS550T - Sold
1981 GS850L - Love every minute
198o GS750EX 16V - in the process
I'm fairly certain the last two times I jumped a car (my car was the live battery, red top FTW!) I did the opposite of this and connected the black to my block.
What you are saying here is i've been doing it backwards?
Worked both times btw. The explanation I received was to prevent computer damage.... Guess there was a better reason.
__________________
Heated black leather | I30 headrests | I30 auto dimming mirror | I30 door handles | LED interior | OEM fogs | OEM wood trim | Custom Sirius | SE wheels | 99 Headlights | Clear corners | Red Rear Turn signals | Optima Battery | Roof Rack | OEM FTW!
I always go pos to pos, neg to neg, hooking up the good battery last. I was taught this at the technical college i went to.
A dead battery could have boiled off enough electrolyte and left hydrogen gas behind that an internal spark would cause the battery to explode. You don't want to stand over a dead battery while making the final connection regardless of whether its on the terminal or block.
My instructor claims to have seen this, and I believe him.
Rapidly discharging batteries make hydrogen as well as charging batteries.
, Smoked Red/Clears, AE'd Headlights, Yellow Fogs, Ebay FSTB, Ionic front Lip, Intrax Springs, 17in G35 Coupes.....EManage Ultimate!
Linear Mode
