Battery current drain
Thread Starter
Burning Brakes
Joined: Jan 2005
Posts: 1,216
Likes: 1
From: westminster California
Battery current drain
How much current should my c5 electrical system drain from the battery for the first 30 minutes or so after the ignition and all accesories and lights are turned off. I was reading 1.87 amps then it cuts back. Is this correct?
Melting Slicks
Joined: Oct 2007
Posts: 2,383
Likes: 13
From: Kinston North Carolina
Good read!!!!!!
------------------------------------------------
http://forums.corvetteforum.com/c5-t...oing-dead.html
------------------------------------------------
http://forums.corvetteforum.com/c5-t...oing-dead.html
Tech Contributor
Joined: Jan 2007
Posts: 19,453
Likes: 1,158
From: Dyer, IN
Seems a little high. It should be 20ma or less from what Bill Curlee has posted in his Electrical stickey.. Have you tried pulling fuses and relays after the BCM goes into sleep mode (usually about 15 minutes)? Do you have any aftermarket stuff that might be adding a drain? ie GPS or IPOD or such that is wired before the ignition switch?
Tech Contributor
Joined: Jan 2007
Posts: 19,453
Likes: 1,158
From: Dyer, IN
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
When you first connect the amp meter you may see 8 amps. Thats because the head light motors can jog and reapply tension to the down position. That only last for a quick second. Then it falls to around 2 amps and quickly drops to less than 1 amp. It takes mine around 7-8 mins to drop down to sleep mode .02 amps.. Thats what GM designed. Some models may see a slight bit more or less but,,,that the average. If your seeing a lot more,,,something isn't dropping off line like it should.
There are tons of post on this very topic. Ive answered at least 20 and listed 5-6 things to check.
BC
There are tons of post on this very topic. Ive answered at least 20 and listed 5-6 things to check.
BC
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
