LEGO Mindstorms RCX, NXT, EV3 fake battery

by brm, published

LEGO Mindstorms RCX, NXT, EV3 fake battery by brm Jul 24, 2013


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10502Views 1328Downloads Found in Robotics


are you bilding LEGO Mindstorms robots? are your batteries always empty? don't have a battery at hand?
build your own PMB (poor man's battery) ... print out this fake battery to power up your Mindstorms RCX, NXT or EV3 from a power supply!


STL files tested on a Dimension 768 BST printer with support material ... OK!
STL files tested on a Ultimaker printer without support material ... OK!

  • print out all 4 parts ...
  • organize M3 and M5 allen screws and nuts ...
  • organize LED and resistor for 9V, some wire and a jack ...
  • I would suggest a 9V DC power supply with at least 2000mA current ...
  • solder ... play ... have fun!

Do not try to build this adapter if you don't know what you are doing!
I shall not be held responsible if you burn your RCX, NXT or EV3 with incorrect voltage or bad polarity!

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