Question Electrical connectors for underwater

[Tom_Ivan]

Looking to modify a dive torch to have an external battery and need a suitable connector that can keep the water out under pressure.

Any suggestions please?

 

[rjack321]

Looking to modify a dive torch to have an external battery and need a suitable connector that can keep the water out under pressure.

Any suggestions please?

What kind of light? The EO is a worldwide standard even if a bit primitive and they don't last especially long.

 

[Tom_Ivan]

Just this cheap light from China. Been using it for ages now for sump diving. Works fine but battery runs out after about 4 hours and I'd like to get that up to 12. It doesn't have to be wet pluggable. Its actual time underwater on any given trip would be no more than 1 hour and usually no deeper than 15-20m

IPX8 Wasserdicht 21700 Tauchlampe Licht L2 Tauchscheinwerfer Unterwasser 50 m Scheinwerfer LED Scuba Head Taschenlampe - AliExpress 39

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www.aliexpress.com

By EO do you mean this?

EO Wet Pluggable – Novasub

www.novasub.com

 

[happy-diver]

more like this

E/O Cable, Wet E/O - SmartTex Heated Clothing

9.5mm thick waterproof cable, length 1m, 16AWG = 2x1.34mm. Cable terminated with male-female plug for underwater use

smart-tex.pl

 

[lucca brassi]

a little bit better one https://www.scubasupport.nl/us/thor-offshore-engineering-thor-e-o-cord-125cm-tc-1.htmle or thinner WAM cords

 

[PietroT]

I’m using bulgin px0410/0411 connectors for my heating system, after having replaced few broken EO cords.
If you do not plan to plug/unplug underwater, they work flawlessly, are cheap and easy to replace, without the need of replacing the complete cable.
I have tested them up to 90m so far.

 

[Tom_Ivan]

@PietroT Thanks very much! Those connectors are available locally here and pretty inexpensive. I've give them a go.

 

[grantmac]

I’m using bulgin px0410/0411 connectors for my heating system, after having replaced few broken EO cords.
If you do not plan to plug/unplug underwater, they work flawlessly, are cheap and easy to replace, without the need of replacing the complete cable.
I have tested them up to 90m so far.

Can you unplug them underwater?

 

[rjack321]

Can you unplug them underwater?

Negative.

The water will (nearly) instantly wick/penetrate back through the cabling and flood your light head and battery canister. You can seal the cable ends with potting epoxy or potting silicon which *may* prevent the lighthead or battery canister from leaking in from the cable.

 

[lucca brassi]

I have look on many connectors and I don't like E/O too much and they are also expensive , but I take them just because compatibility with other systems .