So this is the second winter in a row that I verify had to replace my battery multiple times. It's only been a week but again today my car wouldn't start. Also once my car is jumped and running game I'm having problems accelerating. If I need to accelerate quickly my check engine light will come and the car almost stalls. Then sometimes while in drive (usually I notice this when on the highway) sometimes my car will de-accelerate for a couple of seconds and I can hear a high pitched noise. I have no idea what this could be and when my car was just in to have the battery replaced my internal computer showed no other issies. I own a 2011 Ford Explorer with about 70,000 miles on it. I am the second owner and I love in Pennsylvania so our winters can be pretty cold!