Gee whiz, this thread was dead and buried....
My wife and I both use Cobras now. I love using them. Never had a problem myself. HOWEVER, I do know one person who's Cobra computer also passed PDC but went into gauge mode upon water entry and stayed there during a dive (a 20 minute night dive to 18' in a midwest reservoir). Battery removal and replacement got it up and running again, and it's owner reports it came back clean after the LDS sent it in. Said owner also reported not fully appreciating my comments at the time about it being posessed....
FWIW - I suspect the battery life remaining may be a factor in these instances. Not suggesting that rinsing is more or less important - just that all things being equal, electronic devices require lots of clean power to do their thing. And the dive environment is hostile enough to justify a new battery before hitting the final bar on the remaining power index.
Just my .02 psi(g) - dive safe!
My wife and I both use Cobras now. I love using them. Never had a problem myself. HOWEVER, I do know one person who's Cobra computer also passed PDC but went into gauge mode upon water entry and stayed there during a dive (a 20 minute night dive to 18' in a midwest reservoir). Battery removal and replacement got it up and running again, and it's owner reports it came back clean after the LDS sent it in. Said owner also reported not fully appreciating my comments at the time about it being posessed....
FWIW - I suspect the battery life remaining may be a factor in these instances. Not suggesting that rinsing is more or less important - just that all things being equal, electronic devices require lots of clean power to do their thing. And the dive environment is hostile enough to justify a new battery before hitting the final bar on the remaining power index.
Just my .02 psi(g) - dive safe!