Upgraded Caliper Battery
June 2025
This is an upgraded digital caliper. I have always been annoyed about changing the LR44 battery from these digital calipers. It also dies quickly and then lives in the low battery state which causes the calipers to constantly blink.
I originally looked into a LiPo battery solution so it could just be rechargeable. This would need a single cell and a step down regulator to just supply 1.5V. I ended up instead creating a battery holder for a AAA cell as this fit nicely and would have ~10x the capacity. It’s also a very common battery so it would be less of a headache to change.
This is a clean and functional concept as the battery backpack should not get in the way of the actual use.