As i was preparing for my teams next competition i decided we should make another make-shift Battery tester and figured that other teams may have extra old controllers hanging around and may want an easy way to check batteries so here is my guide to make your own “make shift battery tester”
Materials Needed:
one old controller
one Phillips screwdriver
one pair of wire cutters
one roll of electrical tape
the board should now be free
cut every wire connected to the board EXCEPT the two larger wires on the left of the board i drew blue circles around
remove the board completely
now remove the screw keeping the wires clamped
once that is done you have to cut the plastic holding the connector in on the other side
i used wire cutters they worked fine
if your trying to save money it would make more sense to keep the screen in the controller because chances are that the chip is going to break and now you out of a controller and you still have to go buy a DVOM. You can just order this one http://www.harborfreight.com/7-function-digital-multimeter-90899.html and its on sale for only 4 dollars and it will work fine for you. I have plenty of these in my auto shop class and they work just fine.
We just did this with one of ours, and the biggest advantage is that that annoying beeping sound is gone. Actually, the advantage is that it’s small, but the beeping thing is still nice.
In order to protect the LCD display, I removed the plastic shield from the controller housing and glued it to the LCD. I feel a lot safer tossing it into the box with all the other electrical stuff when the screen is protected.