I somehow ripped off and lost the female power plug on my Kingkong tiny 6. Does anyone know what the plug's called and where I could buy a replacement? Also, how would I know which side of the plug to plug the red/black cables into?
A picture of what you have so we can see what exactly is missing would help but...
From what I can see it is a JST-PH1.25 connector, there are 2 sizes for these, the 1.25mm version (sometimes called a Whoop connector) and the 2.0mm version (called a Power Whoop connector, but I think this is the smaller one that is a little harder to find now. Here is a link to them on EBay.
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The red wire needs to go to the +V input and the black goes to the Ground or -V input. You may want to check a battery with a voltmeter to see which side is which. Again, a picture would help us to know what you actually have and what is missing.