DYMO LetraTag USB-C Adapter - Battery Replacement
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Adapter to power a DYMO Letra Tag label printer via a PowerDelivery or QuickCharge compatible USB-C charger
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Model information
- Source
- Printables
- Category
- Office
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
You just wanted to print a quick label—but the kids have “borrowed” the printer’s batteries (again)?
No worries: here’s a simple adapter that sits in the DYMO LetraTag’s battery compartment and powers it from USB-C, so you can run it from a charger instead of feeding it 6!!! AA batteries.
Material
1× USB-C Power Delivery / Quick Charge Trigger Module (23 mm × 11.6 mm)
2× Flexible stranded wires, 0.25 mm²
2× M4×10 button head screws (ISO 7380-1)
2× M3×16 socket head cap screws (ISO 4762)
The printed adapter (base and cover)
USB-C charger supporting Power Delivery or Quick Charge capable of supplying 9 V
Tools
Soldering iron
Wire cutter/stripper
Screwdriver or Allen wrench
Multimeter (optional)
Printing
I used PLA with a 0.2 mm layer height and 15% infill.
Compatibility
My device is from around 2000, so I can’t guarantee this adapter fits newer models—but it’s worth a try. On the adapter, (−) goes to the upper-left button head screw and (+) to the lower-right socket head screw. Double-check your printer before plugging in.
Assembly
The label printer normally uses six 1.5 V batteries (totaling 9 V).
Start by soldering the 9 V jumper on the USB-C trigger module. If you have a multimeter, connect the module to a charger that supports Power Delivery or Quick Charge and check the output—it should read around 9 V.
Solder the two wires to the + and – pads on the module.
Strip 10 mm of insulation from the end of the negative wire and 3 mm from the positive wire.
Insert the negative wire into the left hole on the left side of the rectangular gap.
The internal trace routes it to the upper-left screw hole. Ensure the wire is fully inserted—you should see the end through the hole.
Insert and tighten the two M4×10 button head screws.
Insert the end of the positive wire into the hole on the right side of the module.
Insert and tighten the two M3×16 socket head screws.
Place the cover on the adapter and insert it into the label printer’s battery compartment.
Connect the adapter to a USB-C charger that supports Power Delivery or Quick Charge and can output 9 V.
Print your labels!
If you like, you can cut a section of the original lid so the printer can be closed while using the adapter. The lid can still be attached as usual.
