XT90 plugs to XT60

How-Tos & Esk8 mechanics Esk8 Mechanics
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Hi Community,

About to solder together a adapter to go from VESC6’s XT90 to XT60 for my battery. Below is a photo of how I want to start the connection. I don’t believe it will cause an issue, but I just want to make sure this wouldn’t fry the VESC6. Since I don’t have braided cable or wire with a gauge thick enough, I’m using bullet connectors to join the two positive pins together, and a bullet connector to do the same for the negative pins. Then I’ll solder the XT60’s corresponding pins to the Bullet connectors.
What do you guys think?

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As long as you solder well and your bullets can handle the amps, I see no problem.

Do you not have big enough spare wire laying around?

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Why not just like that?

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Oh Yeahhhh was it you who wrapped a bunch of thin wire around the positive and negative terminals to help with soldering? Maybe @b264?

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Guess not me. If you place the plugs like in the picture above the gap is so small that you can easy fill it with solder and get a solid connection between all 3 plugs.

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I think you’re talking about @Bindings_McGee, I’ve seen him use that technique a few times

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Ah fuck, that guy

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Thanks for the input everyone. I only have 22gauge wire on hand, and I try to avoid cutting wires if I don’t absolutely have to (why I won’t just change the battery or VESC6 connectors). I figured the 4 or 3.5mm Bullet connectors would handle the current since they are Motor connectors. The reason why I’m using them instead of just trying to Solder with a gap is because my Soldering skills aren’t good, AND my Solder’s tip is in shitty condition. With COVID19, I can’t get these parts in a reasonable amount of time, so I’m using my DIY Engineering skills (LOL).

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Wasn’t me, but I remember it. Don’t recall who

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Make sure you plug in a spare XT90 or XT60 each time you solder. Never solder a connector that isn’t plugged in to another connector. While hot, the pins could get off alignment slightly when the plastic is all melty.

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Here’s the finished product. Looks good?

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I will be covering the contact points with electrical tape, just wanted you all to see the solder job before i do it.

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should glue it all before you wrap it

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Didn’t think about that. Thanks. Here’s what i did, but you’re right, in going to Hot Glue it

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Epoxy is much better imo. Hot glue could work though.

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No, cover it in a liquid sealant. NOT tape.

MG Chemicals # 4223 is the best but hot glue or neutral-cure silicone (like GE “Silicone 2+” from paint section of big box hardware store) or JB Weld 8265-S Original Steel also work

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I put the hot glue on them, then put electrical tape around each contact.

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Electrical tape is very poor under heavy vibration, it’s very poor against heat, it’s very poor against abrasion, and it leaves nasty residue everywhere. Really, just leave it out of the esk8 for best results. It’s great for constructing buildings.

If you must use tape, try polyimide tape.

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You could always use silicone (I reccomend ASI 388 because it’s not conductive even when wet)

I would conformal coat like @b264 said too though… Taking the risk makes no sense :thinking:

Better to be safe than sorry as they say

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I keep a bottle of liquid electric tape for weird sealing like this.

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