It would be great if someone could make 3D print of a case that's easy to access. Similar to swapping batteries on a cadence/speed sensor. I'd really like to see LTwoo or Wheeltop explore this option as well. Though I wonder how many patents SRAM has to protect this concept?
That's such a good point. I can't - for the life of me - imagine what stupidity went into the design with NON-REPLACEABLE batteries on something like that. If my $10 PAIR of ant+ speed and cadence sensors can manage to be waterproof, wireless, and have a replaceable battery then surely SRAM can do the same with a critical part of the drivetrain. Actually, it's worse than that. The pair of sensors I have uses the battery cover as a switch - turn the battery cover to the left and it's a speed sensor and turned to the right it's a cadence sensor. Not only does it have a replaceable battery cover, but they innovated a way to make it part of the interface.
Shame on SRAM, for real. Straight to engineer jail.