Vette Nut

This is second time it happened to me, the battery going dead after sitting for 2 weeks. I know i need to drive it more but i have never had this problem with other Corvettes. Its a 2010 Grand Sport Manual trans car with 3900 miles. I guess its off to the dealer to have it checked

timd38

Do you have anything plugged into the lighter plug?

R&L's C6

There's a reason you can buy a battery tender as an option on these cars.

Get a tender and all will be fine.

Dronski47

Ctek 3300!!! its a must have with these cars. Its aggravating to say the least.

ncvette_1FUNRIDE

Yes, no need for the dealer. Just buy a CTEK 3300 and keep it charged when you're not going to drive it for a while.

I learned my lesson after it happened to me twice as well.

Mad*Max

mine dies in two weeks as well, can go a week max with the current battery

Vette Nut

I have one and use it during the winter. I also have a Mild 2 Wild kit on it but i make sure its off so that does not drain.

ncvette_1FUNRIDE

Well, now you know. If it's going to be setting for a week or more, plug it up.

timd38

I plug my car in, but I have let it sit for a couple months and it still started with no problem.

capevettes

1st: get rid of the battery and replace it with a new AC/Delco Professional Series. If it's been run dead twice, it's not worth keeping. Then hook up your CTEK 3300 and your battery woes are over

Jawnathin

Has anyone heard of leaving it in reverse instead of a forward gear to not drain the battery on the car when parked? I typically put my car in 1st or 3rd when parked, but the previous owner of my car explicitly said to leave the car in the reverse gear, which will not drain the battery.

R&L's C6

Only applied to the 05 model year.

Kwagnerhvac

Why are you letting it sit for two weeks? I have trouble letting mine set for two days!

Kevin_NYC

Get the ctek with cigarette lighter adapter

Lot sof guys talk a big game about tenders, then leave in cubby, get lazy or dont want to hook up clamps or eyelets with their suit, sunday, or date clothes on or when they get back late.

With cig adpater, you just push it in and she is happy

Nice Ride

I am careful where I drive my C6 and I don't drive it in the rain or on wet roads. Just what I choose to do with my Corvette so it sits in the garage for weeks at a time. That pattern isn't going to change especially with winter on the way. When I know the car is going to sit for more than a few days I put it on the Battery Tender. Keeps the battery fully charged. You don't want your battery to go dead in the C6 as you will loose settings and have a re-boot hassel. There is a lot of good information on the forum about Battery Tenders and how to use them. They are safe when used correctly and can prolong battery life. Chevy included a battery maintainer as a Battery Protection Option in 2011 so they know many of these cars sit for extended periods in garages and there is battery drain over time. I have used a Battery Tender for years and it works fine. Others have recommended CTEK and other brands. It is what it is.

Gary '09 C6

the M2W even when "off" will slowly drain the battery in 2 or 3 weeks
(not a couple of months as their instructions claim).

There is a "no drain" installation procedure, but it is more complicated. I read one post here
on the CF not too long ago by someone who did this, and it still killed the battery eventually.

OP, as others have said, just get a tender and use it all the time.

TKgs2010

I've got a 2010 Grand Sport manual trans myself, just about the same mileage on mine, if I'm not driving it for more than 3 days or so, I plug it in. I have the CTEK 3300, I use the cig lighter plug, run the cord out the rain slot in the bottom of the passenger door, put the cover on and plug it into an outlet in my garage right beside the car. Problem solved, I've had zero issues so far, it wasn't started from late October last year until I put the plates back on in early April, started right up, no problem. Check out the CTEK 3300, a lot of guys on here use it, good product, worth the money spent.

foremaw

You can take it to the dealer but I doubt they can help you. All modern cars with a heavy assortment of computer packages have some parasitic drain, Corvettes included. For'Vettes, the normal drain time appears to be 2-3 weeks, but it it varies some depending on battery state at the time it was parked. The manual used to say disconnect the neg terminal or put it on a tender if parked more than 25 days, now it just says do it if its not going to be driven for a period. Its hardly noticed on most cars because few people let cars sit for weeks at a time. If you don't drive it regularly and do not get a bettery tender you will be in this situation again and again.

Jawnathin

Thank you sir! By any chance, do you know why?

CO Lightfoot

Same issue for Ferrari, Porsche, etc.