Designed and printed a 4 x AA NiMH battery tray for the Apple eMate. This lets me change the batteries out quickly because they're not soldered, welded, or wrapped together. The bottom of the tray is open so you can push the batteries out easily. The fit should be snug.

Model available here: printables.com/model/1485849-a

The underside of an Apple eMate with the cover off showing 2x2 white AA batteries in an orange plastic 3D printed tray with wires looping around and connecting to the motherboard.Parts for the eMate battery tray including a cable and copper foil tape.Screenshot of the eMate showing the battery meter fully charged.
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