PRECISION Maintenance Kit

Good point: I received the maintenance kit earlier than expected.
Concerning point: I found the reason why I need it is the stractural weakness of the battery cap (same as maintenance kit) and the body of Precision power meter.
When I try to change the battery, the groove structure of the cap and the power meter body has bent and could not fully closed.

PRECISION Maintenance Kit

I haven't received my package ... and it's quite expensive for a small plastic cap

The shipping was so fast only a week.

I received my parts as ordered. The issue is that due to the distance to ship, I could not use my bike for nearly two weeks. This is not a negative review of the product but a warning about loosing the cap off your 4iiii power meter could leave you without a bike for some time. I would have gladly paid for expedited shipping but it was not offered.