Acaia Lunar USB Port Kit — Replacement

If your Acaia Lunar isn’t charging or the USB connector has become loose or corroded, the Acaia Lunar USB Charging Port Kit is the straightforward repair part that gets the scale back in service. This spare is the same style of port used in Lunar production units (for older Lunar revisions that use a micro-USB connector), and is supplied as a replacement assembly intended for technicians or confident home users comfortable with a small repair. Using the correct replacement part keeps the scale’s charging functionality safe and reliable — a much cheaper option than full replacement.

Installation is intended to be a minor service operation: the kit includes the port assembly, and it replaces the worn connector mounted on the Lunar’s PCB or chassis. If you’re familiar with basic electronic repairs — removing the Lunar’s base plate, disconnecting the battery cable to avoid shorting, and swapping the connector — this kit will restore a solid charge connection and the battery charging indicator behaviour described in Acaia’s manuals. If you prefer not to open the scale, Acaia’s support and authorised service channels can perform the swap for you.

Note: Acaia updated newer Lunar models to a USB Type-C charging port (with PD support) to improve charging protection and battery life; confirm your model before ordering to ensure you get the correct port type. The USB Port Kit listed as a spare part is most often used for the original Lunar revisions or units still fitted with a Micro-B connector. Double-check the port shape on your scale or consult the Lunar manual before purchase — choosing the wrong kit will require a different replacement.

Buying the official replacement part reduces the risk of compatibility issues and maintains the scale’s water-resistance and charging safeguards when reassembled correctly. For cafés and home baristas who depend on the Lunar for timed, repeatable extractions, a healthy charging port means fewer interruptions during service and less chance of misbehaviour caused by intermittent charging.