Re: My Spoiler is staying up
In nearly 19 years on this forum and 19 years of owning 2 Crossfires I have never kept a battery older than 6 years installed in my Crossfire.
These cars are very reliant on proper voltage and a battery more then 6 years old isn't worth having under the hood.
I use battery tenders and maintain the charge as needed but that is still not a reason to expect a battery to last longer than 6 years.
Its the simplest thing to buy and install yourself to eliminate it as a problem for any other troubles you are experiencing
A spoiler not functioning properly has been known to be a result of a failing battery and I have seen this here many times over my many years here