CMOS stands for Complementary Metal Oxide Semiconductor and despite its size, it does much more than you think. Let’s clarify a few things first. A CMOS chip is vastly different than the CMOS battery ...
I would be inclined to say "no" re: crashing, but I'd try to clear CMOS, redo the settings, and see if it helps. Otherwise, no clue ...
I had a co-worker tell me that he had an old computer that the "trickle charger" died on him, thus causing his CMOS to die and screw up his BIOS. I have never heard of anything like a "trickle charger ...