523 Battery Replacement/Adapter

Replacement for the 523 battery used in old cameras and computers

Note: Additional components are required for this print (See below)

I took inspiration from this model (keeping in mind some of the comments that were mentioned on the reddit thread where it was shared)

My main issues were that I didn't have the same sprint, and that the battery was just cut in half and therefore had nothing holding it together. To fix these issues, I :

• Redesigned the holder to use a pen spring (which should be okay for short time, low current applications. Please consider your use case carefully)
• Added a little notch to hold the screw recessed in order to further minimize accidental shorting
• Added a notched ring locking mechanism
• Added incut on the end to make removal in tight spaces easier

I did not cut my spring, so I added an enclosed loop to help keep the contain the spring.

Other Features:

• Because of the spring on the positive side, there is a little bit of play for making a connection
• I made it a bit smaller to fit my specific use case than the original, but it should work fine for all applications (if not I can release the longer version)

Print Settings:

• 0.4mm nozzle
• 0.2mm layer height
• Supports required

Printing Notes:

• Print one of each of the holder and holder cover
• Print two of the rings
• I rotated the cover and the holder to be on their side to improve strength against the push of the spring and to reduce supposrt size

Additional Components:

• Pen spring
• 2x M4x10 screws
• 3x LR44 batteries (or the replacement)

Extra Notes:

• I believe I can come up with a better assembly/locking mechanism, so I will see what I can conjure up
• As mentioned, I can release the slightly longer version if people are having issues with spacing
• Add visual indicator for identifying positive and negative side
  • Positive side is towards the spring
• Other suggestions welcome

• Redesigned for pen spring
• Added locking mechanism
• Added spring retention mechanism
• Reversed negative side screw and added screw head notch to hopefully improve safety
• Added incut on the end to make removal in tight spaces easier