BMR1 and BRM2 Di2 External Battery Mount Base Unit A

This is the Shimano BMR1 and BRM2 Di2 External Battery Mount Base Unit A. These Di2 external battery mounts are essential for your bike. All Di2 components on your bike must have the same firmware version to avoid malfunctions. You can use the Di2 system checker at http://e - tubeproject.shimano.com/ to update the component firmware.

Using this Shimano Di2 external battery mount is easy. Just attach it to your bike where it fits best. Remember, all Di2 components on your bike need to have the same firmware version. If they don't, your bike's Di2 system might not work properly. To update the firmware, go to http://e - tubeproject.shimano.com/ and use the Di2 system checker. For maintenance, keep the mount clean and dry. Check it regularly for any signs of wear or damage, and replace it if needed. This will ensure your battery stays securely mounted and your Di2 system works smoothly.