Hi, I have the Garmin Rally XC power meters on both sides. on one side I lost the cap that covers the battery making the power meter on that side useless; where to get a replacement as I do not see it in the shop? It's a loose part, so I expect it to have a part number and that the whole pedal doesn't need to go back for a repair.
See the image and the part marked in the red box that I highlighted. 
