I got my Focus ST about 4 months ago and around the time I got it I also got the battery tested at Oreilly's and they said it was in its last quarter. I haven't really had an issue with the car besides it takes a second to start up. If I were to just get the battery changed now without the car alerting me on the dash that the battery is bad, would I need to do a BMS or would it be good to just change it and everything would be fine electronic-wise? Also, I'm thinking about getting one of these batteries. Which would be the best option?
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