I bought a 96R Kirkland battery from Costco for a 2012 Escape back in September 2021. I’ve only been driving the car about once a week recently, and I noticed the battery has been dying on me suddenly. I took it for a 3h drive yesterday on the highway and checked the voltage of it today and noticed it has a resting voltage of only 12.43V.

Is it time for a new battery? I could get a new one for free under Costco’s generous battery warranty program. I feel like taking it for a long drive on the highway for 3h should have charged it a little more than that. I do live in a colder climate in Canada too. As soon as the temperature dropped recently it seems to be struggling a bit more as is expected.