Actually you don’t need to use it for the full warranty period. At least pop each one in as you get them just to make sure they weren’t damaged in shipping. Using it for at least a few days will also help eliminate they likelihood of an early failure do to any defects. It would suck even worse to have a spare that didn’t even work out of the box and not to find it out until you not only needed it but the warranty period had also expired.

3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1