Originally Posted by
wroomwroomoops
My solution is to put a little bit of lithium grease on the strategic places. Lithium grease is hydro-repellant and very stable. Together with the existing insulation, it will provide nearly 100% security against water infiltrations. Try to avoid getting it on the contacts with the cradle, even though it's not critical.
In the absence of lithium grease, I had used petroleum jelly or Vaseline with great success. I used them on the O-rings on flashlights and cyclocomputers. Besides the low cost, they are easy to obtain from the local drug store.