Digital Voltage Meter for Milwaukee Battery Charger
by backspace721 in Workshop > Tools
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Digital Voltage Meter for Milwaukee Battery Charger
Supplies
Razor blade
Wire strippers/crimpers
Red wire and ground wire
Wire connectors
Heat shrink
Rotary tool (careful not to slip)
Scissors
Button switch (I reused one from a Harbor Freight blue freebie flashlight)
T10 bit
Carbon fiber sticker (optional)
Old school standard plastic pen body
Foil tape
Hot glue gun (don’t judge me)
Solder and soldering iron (also no judging my soldering skills)
The Start
LED Tubes
Cutting and Fitting
Selection Button
I used a push button I got from a Harbor Freight flashlight but there is a lot of options out there for switches and buttons. Also mounting location may vary depending on what you have. I cut out one vent slot and some of the body between the two docks with the rotary tool. Go slow here as to not slip. The bit I used had the tendency to grip causing more material that wanted to be cut. After some cleaning up and test fits. I used JB Weld to hold it in place.
Electrical
Finishing
After verifying all the connections, reassemble the charger and test it out. With the charger unplugged, the volt meter should read the the voltage of a battery when connected to the charger. If I was going to do this project again, I would have picked a different volt meter. Definitely something shorter, and probably one with a USB output due to the fact that the current is not reading.