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Power supply connection issue
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drummerdimitri:
I have a CC power supply I use to constantly charge my supercapacitor bank while I weld battery tabs and I'm having difficulty finding the best way to connect the power supply to the supercapacitors.

There are 4 negative and 4 positive screw terminals (M3 or M4 screw) so connecting the 8 AWG cable terminated in a female XT90 plug would not work since I cannot crimp a connector small enough to screw on.

The only option I see is to either connect 4 x 14 AWG cables (equivalent to 8 AWG cable) and create a buss bar where I could then connect the large 6 mm lug and the other 4 cables to.

Problem with that is it will be bulky and I wont be able to heatshrink the entire buss bar and all the connections as it will be too wide and twisting 4 x 14 AWG cables together to then solder those to an XT90 connector would be hellishly difficult.

Does anyone have a better idea? Are there special isolated junctions for such tasks?
drummerdimitri:
BUMP!
langwadt:
picture?
drummerdimitri:

--- Quote from: langwadt on July 02, 2019, 08:28:40 pm ---picture?

--- End quote ---


Here you go. I'm ready to cut the lugs off since they have been crimped the wrong side anyway.

Insulation is paramount as I don't want 50 A of current flowing through the case of some other metal object.


ajb:
Why not get some ~2mm copper sheet, form it into buss bars that hang off of the terminals with a suitable hole for an 8AWG lug, and then use one of those rubber coating products (plastidip or similar) to insulate the exposed part of the plate?  Or, if you shape the plates right, you may be able to just use some large heatshrink over the whole deal.
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