"... also of note, use a trickle charger ($70) when storing car or not driving for even a few days. batteries are only covered by BMWNA warranty if the car has a failed battery & the car has at least 100 miles for every month in service. example if a 01 car comes in with 2k miles on it & has a dead battery a customer will have to pay for replacement rather than it being under warranty. just a few recent issues we've had with cars."

Here's one link to order a BMW Battery Maintainer See ROADSTER SOLUTIONS This is also available at BAVARIAN AUTOSPORT.

1/10/05. I did receive an email from our own Andy Maddux at LeatherZ, They also carry a lower cost trickle charger called the "Battery Tender Junior" Sels for $36.00.