I plan to use a pair 5.5x2.1mm DC Power Jack as shown below to connect a battery pack to a DC motor that will drive an electric tricycle. Occasionally it may rain while the tricycle may be in use and I want to make sure there is no risk of shock.
When plugged in, there is about 2-3mm of the male pin exposed. I will definitely house the battery pack, which are basically two 4x18650 battery holders fixed together, within a plastic container or special case. However, in case water gets in contact with the connection (mostly rainfall and not submerged), will there be a chance of short circuit or shock?
The positive of the male pin will be on the inside and hence the connection does not complete. Also what about the terminals where I screw in the wires? I guess, at least for that I can use electric tape.
It is a DIY, but not a prototype, rather a toy. It will not be stored outdoors, and if it rains when used, should be quickly moved below a shelter or indoors. That said, 99% of the rain falls on four known months of the year. Voltage is 15-16V.
In such an environment, would it suffice if I housed the battery in an inverted plastic container and have the wires run from the bottom? I still need to figure out how to waterproof the motor, but that's another question.