Originally Posted by MRV99
Due to both my wife and my "unfavorable driving profile". I put the X5 and the M3 on the BMW battery tender once a week over night and it has done wonders. I use the terminals under the hood. I keep the hood open so I don't forget and drive away with the charger plugger in. You can close the hood and not have an issue.
I do the exact same thing. I use my tender on Sunday nights once a week to the terminals under the hood. Has changed the way my car acts all together. Best $40 I spent.