I want to use my old Phantom 3 chargers on my Phantom 4 Batteries. The chargers are exactly the same except for how they plug into the Battery . Since I have both Phantom 3 and Phantom 4 batteries , there should be away to make a plug in adapter. I know it works because I made one with the female end of a 3 battery charger adapter I paid $5 from china and cut the female port off and soldered it to a Phantom 4 Charger lead $4 each from china. But there should be a even cheaper way to do this but I can't find a socket like what is used on a P3 battery. Anyone one else tried this? I need the same socket as that of a P3 battery to make more of these. I designed it so you can only pug it in one way so as not to reverse polarity. I have several P3 chargers but only 1 for the P4
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