Battery drain in 77 - CorvetteForum - Chevrolet Corvette Forum Discussion

C3 Tech/Performance
V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette

Battery drain in 77

Thread Tools Search this Thread
Old 10-12-2013, 10:53 AM   #1
Junior Member
Thread Starter
Member Since: Mar 2013
Location: Portage la Prairie Manitoba
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Default Battery drain in 77

Wondering if anyone out there has done any work on the fuse block. My windows stopped working and found a connector had come apart. I put he pink wire back together and ever since my battery drains overnight. It seems like a strange setup as it looks kind of like a jumper, trying to look for a wiring diagram, but so far nothing helpful. Any ideas?
Nomad09 is offline   Reply With Quote
Old 10-13-2013, 05:47 PM   #2
CF Senior Member
Member Since: Apr 2009
Location: Charlotte NC
Posts: 14,991
Thanked 1,345 Times in 1,191 Posts

Your power windows ( if connected correctly) should not drain your battery. The reason being is that circuit is DEAD when the key is out of the ignition.

The only way your battery gets a drain is by a component that is still drawing current when the key is off....which means that usually the circuits causing this are those circuits that stay POWERED UP ...even with the key out of the ignition. SO, interior lights and timer controller, alarm system components, I have encountered a bad alternator once...but this is rare, rear compartment light is still on...due to being a part of the interior light circuit.

They sell a tool that you can connect to your negative battery cable and read the amount of drain in amps. You wan to shoot for no more than 200 milliamps...if possible.

DUB is offline   Reply With Quote
Old 10-13-2013, 09:58 PM   #3
CF Senior Member
gjohnson's Avatar
Member Since: Mar 2008
Location: Denver CO
Posts: 925
Thanked 48 Times in 47 Posts

Until you get it figured out install a battery disconnect at the battery.Mine had a drain and I finally traced it to the factory alarm.Got rid of that POS!
gjohnson is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • Battery drain in 77

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    Battery drain Wayne1964 C1 & C2 Corvettes 9 09-02-2014 02:04 PM
    1969 Parasitic battery drain Robber C3 General 4 08-25-2014 04:11 PM
    1963 327 250hp hard to crank & drains battery black1961 C1 & C2 Corvettes 9 01-02-2011 04:50 PM
    LCD circuit causing battery drain jtferris C4 Tech/Performance 1 05-07-2005 12:19 AM
    Need to disconnect 75 Alarm Paul 75 L82 C3 Tech/Performance 2 09-28-2003 09:12 AM

    Thread Tools Search this Thread
    Search this Thread:

    Click for Advanced Search

    Posting Rules
    You may not post new threads
    You may not post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are Off
    Pingbacks are Off
    Refbacks are Off

    Forum Jump

    All times are GMT -4. The time now is 04:26 PM.

    • Ask a Question
      Get answers from community experts
    Question Title:
    Your question will be posted in: