Do you rinse them thoroughly? I’ve had the same remote for 5 years and it hasn’t failed. But I submerge it fully in freshwater after every use and rise it thoroughly.
There are two versions of how the waterproofing was done on these:
Early ones used a softer RTV potting compound, water leaks up the interface between the RTV and the battery wires and eats the PCBA.
Newer ones use a rigid black potting epoxy which is better.
When I bought my replacement (with a 50% off coupon for the failed one) I immediately took it apart and painted the innards with epoxy. Anywhere the black potting looked thin, or around any wires, I added more epoxy.
My replacement has been running solidly for a year. Mix of fresh and salt water, mostly fresh.
I wonder with these fully potted remotes if you could submerge them in oil/ corrosion X in a vacuum pot, and then vacuum them release to get the oil into any cracks or crevasses. If you did that every few months it would probably last for ever.
Of course, I dipped in fresh water after each session
I don’t know what the failure was, but when I opened one of the remotes to measure battery voltage, it was normal.
So something in the inner circle
Unfortunately I won’t continue with all these solutions of adding epoxy or dipping in corossion
It doesn’t make sense, I’ll switch to Mayatech
What is most disappointing is the poor support of Flipsky