Today I was washing my lawn mower and took my watch off and laid it out to dry. I assumed that my watch died as the battery was already low. I went to charge it several hours later and it wouldn't charge at all. I cleaned the terminal connections and plugged it into the wall and it came back on and reads that it's 100%. However when I unplug it it automatically dies. I have tried the soft reset, repairing, cleaned terminals with rubbing alcohol and nothing makes it stay on aside from being plugged in. I've had it for about 18 months also. Is that the average life expectation for your products? If so thats very disappointing.