Battery life - how long?
I've tried to baby the battery in my 535 Touring and wonder how long I should expect it to last?
The wagon was Jan 2008 ED, now with 50k. My commute is about 10 miles each way, mostly highway (often congested in AM - DC beltway for those in the know). I routinely use a battery tender overnight most weekends, so battery is fully charged beginning of most weeks. Posts here suggest 5 years is typical battery life - will routine use of battery tender help extend that?