The battery builders club

It is a 11pin connector. So all at once. The balance leads are confusing me. Should the last pin #11 be positive ?

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And #1 cell 0v or 4.2v?

B10 and B+ are the same end, same deal with B0 and B-

Thank you! So just to be 100% sure this is correct. My balance connector reads from right to left 0v-4.2-.8.4 etc and last pin is 42v.
This is how it should be wired right?

Yes, with the negative probe on the negative of b1 and the positive probe on the positive of b10 it should be 42v

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Hey @Skyart what’s the point of the extra wire on this battery:

Appreciate it!

this place

Its there for extra current carrying capacity! So that all the current doesn’t have to squeeze through just the nickel. Keeps things running cooler.

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Pro soldering trick:
If soldering thick wires to bullets or xt90’s, pre tin the wire before taking the insulation off. That way all the tiny strands will fit in the connector ^^
(This is 8AWG)


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Its a nifty trick, but when do you stop tinning if you can’t see it?

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Probably the smallest drop of solder is enough, just on the end of the cable i guess

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I do it just by feeling. So the solder doesn’t wick in the whole wire

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When I do this I actually angle the iron tip and press into the wire where I’m just about to melt the insulation. And then I feed the solder into the wire from the top and sort of press the iron into the wire to create some pressure and sort of jiggle it just a tinny bit, but still pressing the tip in the same spot. This tiny bit of movement allows the solder to feed into the wire nicely and it doesn’t just blob up and sit on top of the wire

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image

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haha, I love this, great pics!
I pre tin nearly all my silicone wire before stripping, keeps the end from fraying also with small stuff. BMS leads are an exception because it’s almost always cheap melty wire.

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You only need a little. Just enough to keep all the strands in check, then you can add all the solder you want after you’ve got them in the bullets.

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I learned something today!

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It’s a great trick, especially with the high strand count stuff that can act like frizzy hair sometimes.

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Any one here useing the Bestech HCX-D823 for charge only?
I’ve reached out to bestech trying to score couple of the D140 but they are obsoleted… was offered this instead.