DriveSmarter
Region: US
Friday 26 June 2026 13:15:15 GMT
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jaycool :
I always plug the good battery first then the other clamps to my nipples
2026-06-27 14:41:18
127
Junkyard Garage :
this is not true whatsoever the way I was taught at the shop and it was by ASE certified Master technicians and I. even stated on the ASE exam to always hook it up to a negative on the battery. never to the vehicle's body
2026-06-26 22:29:58
58
Brandon :
my grandfather is being doing it strait on the battery for 70 years never had a issue
2026-07-07 08:23:16
3
Bubba 408 :
I’ve always put positive positive negative to negative for the last 40 years. Never had one problem yet.
2026-06-27 02:40:29
33
JJ :
It’s suppose to be negative first
2026-06-27 17:02:23
8
gen❌stream :
I was taught be a mechanic negative first then positive and never to body
2026-06-27 16:39:40
8
monster3476 :
Nonsense I connect positive and then the negative it charges the cars battery so don't know where you come from
2026-07-07 10:02:28
0
Goblinking :
I connect to both sides of the good battery and then to both sides of the dead battery. always have, always will
2026-06-27 07:38:03
9
Blue Horseshoe :
ground then red, always
2026-06-27 13:26:44
0
Native_Outlaw :
and if the engine bay is either painted over entirely or has a layer of rust
2026-06-26 15:47:30
5
ryanp769 :
Please just buy a jumper box you won’t have to worry about this shit
2026-06-27 14:40:55
0
ghostbronx :
or just connect to the dead battery first and then the fully charged one which doesn't give off any gas 👍
2026-06-28 01:06:10
3
Benjie :
I have never seen an issue in my entire life of auto mechanics where a battery exploded by hooking into two batteries together to jump something off
2026-06-26 16:24:37
2
Skye :
I always do black first and then red
2026-06-27 07:41:56
7
Lmad_kpn :
The way you spoke fast in the end there
2026-07-06 14:18:57
1
BOURI YOUCEF :
doesn't matter i always connect them and nothing ever happens....its only bad if the positive touches the negative or a ground
2026-07-07 09:15:45
0
Marte marty :
part of the reason you connect the last clamp, the negative clamp, to the engine block ( not the car body like in the video ) is because a charging battery will emit hydrogen gas as its charging. So when you Disconnect the clamp, you disconnect the negative clamp from the engine block. Often the engine block has a metal ring thing bolted to it from when they fit the engine, connect to this. But another thing is that the starter motors earth is mostly connected direct to the engine and there's a copper cable between starter-engine-battery negative terminal. By bypassing the cable from the starter-engine-battery, you get power direct to the starter. if part of the problem was a bad earth to the starter, you bypassed it.
2026-07-07 09:22:04
0
forty 6 and two :
dont start the car with 2 cars connected up. may power surge and fry the ecu.
2026-07-07 08:57:36
0
Miguel 🇵🇷 :
Why would positive be first? If the negative is already installed that means you’re already grounded which is what actually causes the spark. The negative doesn’t cause a spark
2026-06-27 18:13:03
4
BrosiahChill69 :
Nope. I tried that and it didn't work until I put both clamps on the battery
2026-06-29 10:12:50
2
plainrock172 :
I do it battery negative because that’s a good ground
2026-07-04 05:49:10
1
Rafael :
what a joke
2026-06-27 22:31:19
2
Just The Facts :
I always put the cables on the dead battery first, red then black, before I put them on the good battery, red then black and have never had an issue in 42 years of driving.
2026-06-28 21:42:02
3
scottyfrick :
Everything is painted underneath the hood
2026-06-27 13:20:58
0
Michael :
Don’t most people have jump packs now?
2026-06-28 02:44:30
4
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