Originally Posted by marcel b
I am surprised a bit people have some issues with the Braille Battery.
I have had a Brailly B2015 in my Z4M coupe for year and had no issues what so ever. It always started, also after 3 weeks of not using, and also in cold temperatures here in Switzerland.
Maybe the differences with the E9X is the amount of electronics in the car...
Yes, different cars is an "apples to oranges" comparison. How many amp-hours is the OEM BMW Z4M battery? The M3 is 90.