Odd....3 yrs and both of my FOBs are fine. But I rarely use the FOB buttons so that probably extends the battery life vs. activating buttons all the time.Anyone having problems with their key fob batteries? We are replacing ours every 1-2 weeks! Volvo says nothing is wrong. 2015.5 V60 R-design PS. Help! Can’t keep buying expensive batteries. Each fob takes 2 of the cr2430.