[rolandraijmakers]

Originally Posted by plusman

I think I might invest in a better battery charger.

Can anybody confirm if the CTEK MXS5.0 is the same as the BMW approved battery charger? They seem alike aside from the BMW branding?

https://www.amazon.nl/CTEK-MXS-5-0-a...2829730&sr=8-1

I think this article says enough.
https://www.bmwblog.com/2016/01/28/b...ttery-charger/

I’ve borrowed an CTEK MXS 5.0 From a friend. I fully charged my G20 320i within 4 hours with this battery charger. After a full charge the install option was activated. Update took about 20 minutes.

This charger has a special mode for AGM type of battery which is installed.
The battery is in the rear under the cover, and has a capacity of 105A.

Important: The charging should be done from the front, in the engine compartment. There you’ll find two hookup points for the charger. Please read the BMW manual.
Wait until the battery is fully charged, unhook the charger first, shut the hood. Then go inside the car to start the iDrive system.

due to corona I drive less, this drains the battery. Modern cars are packed with electronics, which are active all the time.