Keeping water out?

[ib456]

Hi,

I have just about finished an electric Jet sprint hull as attached.
Now the problem is that the battery or batterys need to be against the transom to drop the rear of the hull low enough so that the jet unit is in the water..
The trouble is that there is no cover for the opening, and I dont really want to have one due to heat issues with the motor and the problem with making something to fit, which at this stage isnt water cooled. I have waterproofed the steering servo and the reciver and esc are in a waterproof radiobox.

But what is the best way to stop or at least limit water shorting the battery connectors if they get splashed? I have filled the back of the connectors(tamiya style) with silicone as well as where the wires go into the battery pack.. but what would be the best way of sealing the join when the battery is connected to the esc? just Tape? or is there a better more effective way of doing this?

thanks

stuart

[ReddyWatts]

Can anyone help this new member?

[Ctonez]

maybe silicone tubing...it may be tight, but with large ID tubing you can probably work it over the connection...actually that won't work for tamiya-style...that's an easy fix for bullet style connectors, not so easy for deans/tamiya.
Hockey tape is probably your best bet with deans/tamiya.

You could just change your connectors to bullets...then they'd be much easier to make watertight.

[Doby]

I've run Deans and (previously) Tamiya connectors and never had them short out, even when submerged. On my 1/12th llumar the battery, speed control are not sealed, just under the cowling they are always wet and never have shorted.

I'm don't think you need to worry about that at all.

[ib456]

Thanks guys, I have sealed the bullet connectors with silicone and left the tamiya connectors. Seemed to work well enough.
Took it out no more than 10 minutes ago and without a radio box lid... went well no shorting even tho there was a little salt water in it when i had to wade out to retrive it... The ESC is a 25 amp plane one i had lying about. It cuts out when it gets too much draw on it. With a 7.2v it went well but a bit slow.... once i tidy it up and put the 9.6 in i hope it goes a bit quicker.

have a 110amp one on order... as well as a cooling kit..

thanks for the help

[Avanti]

invest in some corrosion x spray if you are running in salt water (you can get it here on OSE)