Memory/battery tender question - CorvetteForum - Chevrolet Corvette Forum Discussion

Register FAQ Search Today's Posts Mark Forums Read Vendor Directory

C6 Tech/Performance
LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace Sponsored by
21st Century Muscle Cars

Memory/battery tender question

Reply
 
 
 
Thread Tools Search this Thread
Old 05-21-2012, 04:16 PM   #1
Mchapman
CF Member
Thread Starter
 
Mchapman's Avatar
 
Member Since: Sep 2011
Location: Canton Georgia
Posts: 79
Thanks: 0
Thanked 0 Times in 0 Posts
Default Memory/battery tender question

I have a 2011 A6 GS with a GM battery tender (CTEK 3300 except it only has the cigarette lighter connection).

The dealer at delivery left a device on the battery that is for emergency starts if you have a dead battery (push a button for a one time shot at starting the car). Evidently they put these on cars that sit on the lot.....

Anyway the thing is cheap and flimsey and I want to remove it. Will all memory be lost if I disconnect the battery for a few minutes to remove the "device"?

Second question according to the "Motorweek" show on Velocity you can plug in the battery tender through the cigarette lighter and then remove the batter connection and the memory systems on the car will be preserved.

Is this true? Is it safe?

I appreciate any help offered.
Mchapman is offline   Reply With Quote
Old 05-21-2012, 09:27 PM   #2
Gearhead Jim
CF Senior Member
Support Corvetteforum!
St. Jude Donor '13
 
Gearhead Jim's Avatar
 
Member Since: Sep 2000
Location: Chicago area
Posts: 18,215
Thanks: 0
Thanked 77 Times in 62 Posts
Default

You will lose the window indexing if you disconnect the battery, so leave door open or lower your windows an inch before doing that. The re-indexing procedure is in your manual, very easy to do.

Often, the TPMS will show 0 psi on your tires after battery disconnect, just drive for a few minutes and it comes back on.

Using a battery charger with the battery disconnected is said to possibly over-voltage the system and cause damage, so I would avoid it. A battery tender might not have that problem, but still...

The only things you normally lose are the window indexing and TPMS, very easy to "fix" so I don't mess with anything else.

Enjoy that car!
Gearhead Jim is offline   Reply With Quote
Old 05-22-2012, 07:41 AM   #3
Mchapman
CF Member
Thread Starter
 
Mchapman's Avatar
 
Member Since: Sep 2011
Location: Canton Georgia
Posts: 79
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Thanks for the help. I had just never heard of using the battery tender that way. Re-indexing the windows is not hard. Resetting all the personal preferences is a pain but it sounds like they may stay.

Thanks again.
Mchapman is offline   Reply With Quote
Old 05-22-2012, 12:46 PM   #4
ELP_JC
CF Senior Member
 
Member Since: Dec 2006
Posts: 2,512
Thanks: 0
Thanked 2 Times in 2 Posts
Default

Quote:
Originally Posted by Mchapman View Post
I had just never heard of using the battery tender that way.
I'm pretty sure the tender will disconnect itself like if you had pulled the 12V plug, since it won't detect a battery anymore. But you can try and let us know . Good luck.
ELP_JC is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • Memory/battery tender question
  •  
     
    Reply

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    Battery and Battery Tender Question MKenM C6 Corvette General Discussion 1 08-10-2014 09:39 PM
    Battery Tender -- Direct to the battery or via Cigarette Lighter? bgergely1 C6 Corvette General Discussion 9 08-08-2009 04:10 PM
    Battery Tender - Hookup to Cigarette Lighter Mordi C3 General 1 06-17-2008 08:52 PM
    Battery Tender - Hookup to Battery Mordi C5 General 3 06-17-2008 08:25 PM
    Battery Tender Question DCF C5 Tech 8 02-14-2005 02:37 PM


    Tags
    battery, corvette, forum, tender

    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 04:45 AM.