T238 Speed Loader Battery Storage
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March 27, 2026
3D‑Print Extension for T238 Speedloader
Looking for a way to use bigger batteries in your T238 Speedloader?
Same here. What really annoyed me was that I couldn’t use batteries from my other AEGs because they were simply too big for the Speedloader. So I decided to fix that myself and designed this extension.
The battery extension gives you a lot more space in the battery compartment. On top of that, it also has room to store the other adapters, so everything stays in one place instead of floating around.
I also designed a protective cover, which is especially useful during transport:
protects the display and buttons
keeps the fill lid closed so no BBs can spill out
includes a plug for the feed tube, so BBs inside won’t fall out either
Installation
Bottom / Battery Extension
Remove the 4 screws from the bottom and take off the original battery compartment
Mount the extension using the original screws
Tip: Glue the 2× M3 nuts in place with super glue so they don’t get pushed out by accident
Cover
Feed the bungee cord from the outside to the inside through one of the holes
Tie a knot on the back
Measure the needed length and tie another knot on the back
Done
Additional Hardware Required (not included)
Bottom
2× M3 nuts
2× M3×14 mm countersunk screws
Cover
approx. 30 cm bungee cord (2.5 mm or 3 mm)
Discussion in the ATmosphere