This kit contains all parts shown to assemble a watertight power cable in either 12V or 24V mode.This will fit both BA-5590 and BB-2590 batteries.
There is a 5/8" grommet that will need to be potted from the inside in order to make the cable exit watertight. Supplynet does offer a watertight Strain Relief as shown on part # SN-406-12-06.
Watertight cap can be ordered without a pre-drilled cable exit through hole.