I've replaced a few in my Volvo remotes just to make sure I'd fixed an intermittent operation problem, but I'd guess that battery power hasn't been any part of the issues. Removing the battery, cleaning it and the contacts, and making sure the contact spring pressure is good should be enough. A quality battery should last 4-5 years at a minimum.
BTW, I've had good luck with battery packs from places like the Dollar Store for 2016, 2032 and 357 batteries - so they last only a year, at 10-20 cents each it's a no-brainer. I got tired of buying $3-4-5 batteries for things that ate them up.