Porsche gotta have the WORST battery in cars. Big and useless. Size is big but the capacity is like that of a AA battery.

4 years, I am on my 4th battery. The damn thing can't even last 2 weeks. Last time I was gone 3 weeks and the battery died. This time I figure I am gone 2 weeks I won't need to plug in the charger, big mistake. Came back and the battery is dead. Again.

What's worse is no one makes a better one, Porsche OE battery is the only choice. The batteries in my BMW all last more than 3 weeks, actually more than a month.

My dealer told me the best selling part IS the battery, Porsche gotta make a ton of money just selling crappy batteries.