Storeage
Drifting
Joined: Jan 2023
Posts: 1,752
Likes: 1,484
2024 C8 of the Year Winner - Unmodified
It should last 3 weeks without issue(assuming regular use where the car is able to charge up the battery to its programmed 80% level). There is always a draw, but the car does enter sleep mode where the draw is minimal.
Having said that, if able to, hook up a tender. Mine is always on a tender when not driven. They make it easy with the outlet in the frunk, so why not since it isn't my daily.
Having said that, if able to, hook up a tender. Mine is always on a tender when not driven. They make it easy with the outlet in the frunk, so why not since it isn't my daily.
Cruising
Joined: Apr 2026
Posts: 14
Likes: 2
I’m new to corvette and new to having an “extra” car. I’ve ordered the battery tender so I have that covered. When do tires developing flat spots become an issue? Let’s say I plan on parking it all winter. Do I start it once a month and just drive around the block once?
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Drifting
Joined: Jan 2023
Posts: 1,752
Likes: 1,484
2024 C8 of the Year Winner - Unmodified
I’m new to corvette and new to having an “extra” car. I’ve ordered the battery tender so I have that covered. When do tires developing flat spots become an issue? Let’s say I plan on parking it all winter. Do I start it once a month and just drive around the block once?
Flat spots are not much of an issue on modern tires. Even if they develop, the first 3-5 miles of driving should get of them. IF you are still concerned, there are flat spot preventers you can buy that you can park the car on.
Last edited by chevyrules727; May 5, 2026 at 09:43 AM.
Cruising
Joined: Apr 2026
Posts: 14
Likes: 2
Once the car is asleep for the winter, it's best to let it sleep unless you can drive it at least for 30 minutes to an hour to let everything get to operating temperature to burn off fuel and condensation.
Flat spots are not much of an issue on modern tires. Even if they develop, the first 3-5 miles of driving should get it of them. IF you are still concerned, there are flat spot preventers you can buy that you can park the car on.
Flat spots are not much of an issue on modern tires. Even if they develop, the first 3-5 miles of driving should get it of them. IF you are still concerned, there are flat spot preventers you can buy that you can park the car on.
Race Director
Joined: Mar 2007
Posts: 11,232
Likes: 8,374
https://www.corvetteforum.com/forums...e-battery.html
Most of the time the car will start after sitting 3-4 weeks, but that does not mean the battery is strong. GM recommends using the maintainer if not driving for more than a week. Mine is on the charger all the time when parked in the garage.
The battery is maintained at about 80% SOC by the charging system. So it decays from that point. For two reasons. One is the 10 ma draw, which is pretty low. The other is that the lead acid battery does loose charge. After 4 weeks the SOC of the battery will be somewhere below 80%.
Pro
Joined: Feb 2010
Posts: 585
Likes: 465
My summer toys are stored all winter....and my winter toys are stored all summer....I always use a smart charger......as for flat spots on the tires, drive it about 150mph for a few minutes and that should take care of that....