The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

Mini-lathe DRO Battery Lifetime

It seems 390/389 alkaline button cells can power the mini-lathe’s DROs for about a year:

Mini-lathe DRO battery replacement - 11 months
Mini-lathe DRO battery replacement – 11 months

Given that the replacement cells all come from the same batch, they’re aging on the shelf as well as in the DROs.

Once again, I replaced both of them.