I replaced the battery as described above in my crank and it worked fine for a couple of months.
then suddenly at the end of the ride it went dead.
No power, no zero offset, no cadence.
I thought it might be wiring unit, so I got a new one. Still didn't work.
The PCV was due a new battery and I didn't fancy fiddling with that one so got it done by the SRM agent. Still didn't work.
I carefully took the white cover off to check the battery contact wires hadn't come lose.. Looked fine.
So, I guess I'm looking at sendin it back to SRM which could be costly. It's an old second hand unit so not sure if it's worth the money it'll cost to get it fixed.
