I looked back at some of the key fob searches, an some members tried double stacking the #2016 battery to see if it would extend the range of all the key fobs functions. Some improved a little, others saw no improvement. Never heard that trying that technique ever caused any damage to the key fob. Several also elected to add wire length to the existing short antenna on the RCDLR for the same purpose. They did this by routing the wire up the C pillar to various locations above the head liner. Some stated it increased it very little, where others say they gained a ton of distance. Probably best to just replace the #2032 battery for now. Several devices use this battery P/N (like garage door openers). You can buy a 1 or 2 battery blister pack for an extremely inflated price, or buy in bulk (like 10 to 25) dirt cheap, That's what I did since I have 5 key fobs as well as helping others that might need one).