4SR44 adapter
thingiverse
Adapter sleeve to install four 357/SR44/PX76 batteries in place of an A544/PX28A. + Contact is a 3mm machine screw with countersink head installed to face the battery, then trimmed to clear just beyond the plastic casing.
Download Model from thingiverse
With this file you will be able to print 4SR44 adapter with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 4SR44 adapter.