Quote:
Originally Posted by oldtexasdog
What's considered too short of a drive?
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Not sure if anyone will be able to answer that, but I can tell you that last winter I ran my 2020 M550 for at least 15 minutes a week to exercise the alternator, oil, etc. She was in lockdown for about 4.5 months. I did not have a trickle charger on it and it was fine, but our cars also power up the batteries during regenerative braking. When I first put the CTEK MXS 5.0 on it, the batteries were only 60% charged. Overnight, they were up to 100%.
Go grab one. It's under $100 and is complete peace of mind. BMW rebranded the exact same model and sells it. It also powers up small stuff. Great product. BMW even thought to notch out a piece of the weatherstripping to run the wiring!!