What did you do to your Hellcat today?

[Unholy707]

To desulfate a battery takes a while. You may want to leave the maintainer on there for several weeks, preferably longer.

If you do need a new battery, I've taken a liking to Weize batteries. They're less when buying direct than from Amazon, by the way.

My factory one finally took a crap after 8 years. Have had a Walmart battery in there and the voltage has been better than ever. Don’t start the car for weeks never have it on maintainer. Never had old one on maintainer ever either. Really not needed unless you drive it once a year and live in the arctic like some guys here lol