Battery Jump Procedure
#1
#2
Join Date: Oct 2007
Location: PHX some of the time
Posts: 117,603
Received 6,332 Likes
on
5,517 Posts
The following 5 users liked this post by Norri:
jaguar51 (12-07-2017),
JimmyL (12-09-2017),
Johnken (12-07-2017),
Orthodixie (12-08-2017),
StuG (12-07-2017)
#4
It's all about minimizing Risk. Risk of accidental short circuit. Batteries produce hydrogen gas, risk of explosion from spark negative terminal while connecting.
These unlikely possibilities are the only reasons I can think of. I almost commented on how " highly" unlikely these are, then I remembered that one time a car I was working on almost rolled off the jack while I was changing a flat. It woke me up fast. Some things are just not worth taking a chance with.
Anyone else got any other reasons I missed?
John
These unlikely possibilities are the only reasons I can think of. I almost commented on how " highly" unlikely these are, then I remembered that one time a car I was working on almost rolled off the jack while I was changing a flat. It woke me up fast. Some things are just not worth taking a chance with.
Anyone else got any other reasons I missed?
John
The following users liked this post:
CorStevens (12-09-2017)
#5
In a word, sparks. When making -- and even more so, breaking -- the last of the four jumper connections you're likely to get some. With traditional batteries, hydrogen is being burped out during charging and hydrogen + sparks = trouble. So we want that last connection made at a spot not near a battery.
Not so much of an issue with AGM batteries, but better to follow the safest procedure.
Last edited by Dennis07; 12-08-2017 at 08:54 AM.
The following users liked this post:
Johnken (12-08-2017)
#6
Direct battery jumping connections can result in battery explosion and put you at extreme risk. The car being jumped should always have it's ground jumper wire attached to a grounding point somewhere on the vehicle frame/grounded bracket other then the negative battery post of that vehicle. The starter car battery cables are simply connected to the terminals, red positive to positive post / black to negative post but not the vehicle being jumped.
#8
very important, the explosion risk is bad enough in an enclosed area. the worse part is that caustic chemicals and debris can be propelled into delicate areas of your body such as the eyes. usually you are performing the jump start away from necessities such as water to flush the acid away. always keep a pair of protective glasses in the boot kit and use them when doing things such as this.
The following users liked this post:
Johnken (12-09-2017)
#9
Thread
Thread Starter
Forum
Replies
Last Post
Graham
XK8 / XKR ( X100 )
29
05-19-2016 12:18 PM
SunnyDay
S-Type / S type R Supercharged V8 ( X200 )
7
10-06-2015 02:40 PM
vincent661983
XJ XJ8 / XJR ( X308 )
9
01-20-2014 09:58 AM
Graham
XJ XJ8 / XJR ( X308 )
5
01-22-2012 03:40 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)