Proper Jumper Start
Thread Starter
Lexus Champion
Joined: Feb 2002
Posts: 2,172
Likes: 0
From: Ontario
Proper Jumper Start
Hey All,
I know this is a really newbish question but its better safe than sorry. My car is ready to come out of winter storage and the battery is dead. I didn't want to remove the battery to charge it, so last winter I picked up one of those portable battery boost devices.
I have been reading a few websites and there are generally two ways in jumpstarting a car:
1) Attach red to battery, attach black to battery --- start car --- disconnect black then red
2) Attach red to battery, attach black to engine block --- start car --- disconnect black then red
I am caught inbetween. I am leaning towards #1 at the moment.
Any help would be great! Thank you!
I know this is a really newbish question but its better safe than sorry. My car is ready to come out of winter storage and the battery is dead. I didn't want to remove the battery to charge it, so last winter I picked up one of those portable battery boost devices.
I have been reading a few websites and there are generally two ways in jumpstarting a car:
1) Attach red to battery, attach black to battery --- start car --- disconnect black then red
2) Attach red to battery, attach black to engine block --- start car --- disconnect black then red
I am caught inbetween. I am leaning towards #1 at the moment.
Any help would be great! Thank you!
Lexus Fanatic
Joined: Aug 2004
Posts: 6,947
Likes: 4
From: Florida
When jumping car to car, I always try to be standing right by battery to remove ground cable from one as soon as both motors are running. I've been under impresion that two alternators running at once can ruin electronics. 
Lexus Champion
Joined: Dec 2002
Posts: 2,854
Likes: 0
From: IL
#2 is the recommended way. The reason is that you get a spark when you attach that last cable and in theory you want that spark as far away from the battery as possible - just in case it is leaking any gasses and then kaboom. Not sure if it has ever happened to anyone, but why take the chance?
Trending Topics
Lexus Test Driver
Joined: Feb 2002
Posts: 1,106
Likes: 1
From: California
Originally Posted by doug_999
#2 is the recommended way. The reason is that you get a spark when you attach that last cable and in theory you want that spark as far away from the battery as possible - just in case it is leaking any gasses and then kaboom. Not sure if it has ever happened to anyone, but why take the chance?
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Top 10 Lexus & Toyotas to Drive Before You Die!
Joe Kucinski
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation
Joe Kucinski
Lexus LC500 Convertible Auction: A Preview of Rising Values?
Brett Foote
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler
Michael S. Palmer
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)
Joe Kucinski
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!
Brett Foote
Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)
Michael S. Palmer
Top 10 Lexus & Toyota Models of the 1990s RANKED!
Joe Kucinski
10 Great Toyotas That Could Have Been Lexus Models
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
raynforest
ES - 1st to 6th Gen (1990-2018)
8
May 17, 2019 06:54 PM
