2 brand new rechargeable 90 degree VL2020 batteries for your BMW key fob/remote.

What  you should know:

1. To replace the battery, you will have to carefully cut and pry open your old key and de-solder the old battery.

During the installation, make sure you don't accidentally short the pins. 

2. Once you replace the battery, you must re-initialize all your keys. This procedure is a must, otherwise your key will not work. If you need the instructions, please message us.

If you have more than 1 key, you must re-initialize all your other keys at the same time, even if the battery was replaced in only one key.
Re-initialization is also known as synchronization. If you need instructions, just let us know.

If you are not sure if this battery fits your car, please send a message before you purchase it, send the VIN, we will look up the correct battery and ship it to you.

Unlike other batteries, these battery must be soldered.