How to weatherproof bullet connectors?

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Timelord   10 W

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How to weatherproof bullet connectors?

Post by Timelord » May 06 2020 11:50pm

Total noob question, but any suggestions on how to weatherproof these if they'll never need to be disconnected? I'm thinking a little dielectric grease then heat shrink tubing. Or should I skip the grease?

Hillhater   100 GW

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Re: How to weatherproof bullet connectors?

Post by Hillhater » May 07 2020 2:59am

If Its never going to be disconnected, skip using bullet connectors.
Crimp or splice solder the wires, then liquid insulator or hot melt .
You can buy commercial waterproof connectors for splicing wires.
Bullets + shrink wrap are not waterproof.
This forum owes its existence to Justin of ebikes.ca

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spinningmagnets   100 GW

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Re: How to weatherproof bullet connectors?

Post by spinningmagnets » May 07 2020 7:20am

For a very small price increase, make sure to get "Marine" heat shrink. Its designed for boats, and it has an internal coating of a heat-activated glue, which seals away the connection from any moisture or oxidation.

Timelord   10 W

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Re: How to weatherproof bullet connectors?

Post by Timelord » May 08 2020 8:55pm

Hillhater wrote:
May 07 2020 2:59am
If Its never going to be disconnected, skip using bullet connectors.
Crimp or splice solder the wires, then liquid insulator or hot melt .
You can buy commercial waterproof connectors for splicing wires.
Bullets + shrink wrap are not waterproof.
That's how the wires come. I don't want to spend time and effort cutting them off and re-splicing.

markz   100 GW

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Re: How to weatherproof bullet connectors?

Post by markz » May 08 2020 9:07pm

Timelord wrote:
May 08 2020 8:55pm
That's how the wires come. I don't want to spend time and effort cutting them off and re-splicing.
You are busy busy busy, dont have the time.

john61ct   100 GW

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Re: How to weatherproof bullet connectors?

Post by john61ct » May 09 2020 11:15am

spinningmagnets wrote:For a very small price increase, make sure to get "Marine" heat shrink. Its designed for boats, and it has an internal coating of a heat-activated glue, which seals away the connection from any moisture or oxidation.
relevant, sourcing the good stuff

viewtopic.php?t=106086

dustNbone   10 kW

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Re: How to weatherproof bullet connectors?

Post by dustNbone » May 09 2020 11:43am

Timelord wrote:
May 08 2020 8:55pm
That's how the wires come. I don't want to spend time and effort cutting them off and re-splicing.
Well, at least you'll know where to start looking when things mysteriously stop working on you in future. That should also save you some time :)

Timelord   10 W

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Re: How to weatherproof bullet connectors?

Post by Timelord » May 09 2020 10:20pm

Yeah, I guess the companies like EM3EV and Tongsheng who put out wiring harnesses using these connectors are a bunch of idiots, unlike the geniuses here.

When did Endless Sphere become infested with useless cynics? It used to be a helpful forum. At least there are still users like spinningmagnets and john61ct who try to help rather than just loving seeing their own words on the screen.
Last edited by Timelord on May 10 2020 7:20am, edited 1 time in total.

bww129   100 mW

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Re: How to weatherproof bullet connectors?

Post by bww129 » May 09 2020 10:36pm

Molex Permaseal butt splices are a good option. You'll have to cut off the bullet connectors though.

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DogDipstick   10 kW

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Re: How to weatherproof bullet connectors?

Post by DogDipstick » May 09 2020 10:37pm

83.1v of Ironhorse XC.. :) :bolt: by Chevy :bolt: :D Broke 10 horsies :twisted: (..about 80% healed..).. :? Waddyamean? You cant tell me how many amperes/Ft.^2 of the plate ?!?!? WTF. :x :| (gottenymoem4115thangs?Yall?) :confused: Fabricator @ BSECo. Inc.

Hillhater   100 GW

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Re: How to weatherproof bullet connectors?

Post by Hillhater » May 09 2020 11:58pm

Timelord wrote:
May 09 2020 10:20pm
Yeah, I guess the companies like EM3EV and Tongsheng who put out wiring harnesses using these connectors are a bunch of idiots, unlike the geniuses here.
Maybe , unlike you, they expect customers will want to disconnect the harness at some time in the future ?
But it doesnt take a genius to consider that possibility !
This forum owes its existence to Justin of ebikes.ca

john61ct   100 GW

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Re: How to weatherproof bullet connectors?

Post by john61ct » May 10 2020 6:27am


DogDipstick wrote:best stuff evr.
> penetrox
Better than

NO-OX-ID "A Special"

?




Timelord   10 W

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Re: How to weatherproof bullet connectors?

Post by Timelord » May 10 2020 7:17am

Hillhater wrote:
May 09 2020 11:58pm
Maybe , unlike you, they expect customers will want to disconnect the harness at some time in the future ?
But it doesnt take a genius to consider that possibility !
Maybe there's another connector in the line that's supposed to be connected and disconnected while the bullet connectors are only there to connect the pigtails. But it doesn't take a genius to know that.

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