January 6, 2024
Description
Simple battery dummy for replacing 4 pieces of LR44 1,5V battery in series. Instead of replacing 4 batteries every few months now I use a standard 5V USB plug-in power supply to power my device or an external 5V powerbank.
It is NOT a "4LR44" adapter (13mm x 25mm) but an 4 x LR44 battery dummy (11,6mm x 22mm)! But it might work as 4LR44 battery dummy as well!
Take care for the polarity! - because it's the opposite of the intuitive usage of AA or AAA batteries. Here positive pole belongs to the spring in the battery box!
Feel free to adjust and use!
Recommended:
2x M2,5 x 8mm Screw
1x 10mm washer
Cable AWG16 or AWG17 ( 1-1,5mm diameter)
Aluminium foil
for best results print it with the "round side" on the plate. No brim nor support needed.
License:
Creative Commons - Attribution - Share Alike
andyg3tin
