Has anyone kept track or even noticed the lifespan of a fob battery? I bought my 09 in Feb of 2010 as an unsold leftover. I use one fob and the other I put away in the safe with other valuables. I changed the fob battery for the first time about 4 months ago and then got the warning again yesterday. I changed it out this morning and checking voltage, the one giving me the LOW warning was at 2.76 volts and the new Energizer was at 3.22. Apparently it doesnt take much of a drop to trigger the warning.
