01-27-2009, 11:30 AM
The weather is cold and I wont be able to drive my car for a few weeks.
I've been told to start it everday and leave it running for 15 minutes, to stop the battery from going flat.
Another person has told me if I do that I'll end up flooding the engine, and that the battery will last.
Other people have told me the battery will only last a week max without the car being run, and if I charge up a completely flat battery I will then run the risk of ruining my alternator.
So as you can see I'm not sure what's true and what isn't, and I don't know what I should do.
01-27-2009, 12:35 PM
If the battery is good to begin with.....sitting for a few weeks won't hurt it. Now if you're in Alaska, I'd recommend bringing the battery in the house.
Actually.....starting the car in really cold weather puts a strain on the battery, and 15 minutes of idling may not charge it back up. But it might foul the plugs, and do other bad stuff. The exhaust system never will heat up properly, the converters don't like that, and the rest of the exhaust will start to rust from the inside.
01-27-2009, 03:44 PM
Dont let it run it can build moisture and not evaporate it the all the way do to the engine not being warm enough. Just let it sit and have a full tank of gas when you do it.
01-27-2009, 03:53 PM
you want to run ur car like once every other week, let it idle for about 20 minutes. this will not build up moisture, your engine should be completely up to temp for about 5 minutes or so, then ur fine. The battery will be fine. I've had my car sit for about 4 weeks in below 0 temps, and never had a problem!
01-27-2009, 04:51 PM
Okay cool, I'll just leave it alone then.
When I did hear that I was supposed to leave it sat there running for 15 minutes everyday, I did that for either 2 days, or 3 days on the run, before hearing that I shouldn't do that. Hopefully I haven't ruined anything.
01-27-2009, 04:57 PM
Just disconnect the battery
01-27-2009, 05:05 PM
Don't run it unless you are going to drive it for more than about a half hour, which also means don't just idle it (it will essentially never get up to operating temp). If the battery is in reasonably good shape you should be able to let it sit for up to about a month. Longer than that........disconnect the ground cable from the battery (ensure that the Ign. switch is OFF when disconnecting/reconnecting the battery). After reconnecting the battery and starting it, let it idle for a few minutes and then drive "reasonably" for a few miles to allow for the "relearn". You'll have to reset your radio presets as well.
01-27-2009, 09:10 PM
You can always use a trickle charger for the battery to keep the charge up.
01-27-2009, 10:17 PM
Im in Ohio and I let mine sit weeks at a time and not start it..The only thing I do is put stabil in the tank