An emotional rollercoaster:
Out riding yesterday and on the way home my power meter started reading 0.
"That's odd," I thought, "I didn't change the battery very long ago."
I went to change the battery and lo, the battery cover had fallen off and disappeared, together with the battery.
This was a significant setback as the manufacturer went out of business and spares are hard to come by.
On the bright side I have just bought a 3D printer, so maybe if I can find a model on the interweb then ... Yes!
So I will be spending part of today printing a new battery cover door, as the final step in commissioning the printer. Cost about 5p. (Ignoring the printer cost )
Now the battery cover also has an O-ring seal behind it. The internet yielded the dimensions and I found some on the interweb for about £5 ... plus £5 p&p. Or I could spend £35 and get free postage.