Energizer A23 12 volt alkaline

They’ve held up perfectly in my key fob for over six months now, which is way longer than the last ones I tried. The high power-to-weight ratio really seems to make a difference in how consistently it works.

These little batteries pack a real punch for their size. I put one in my car key fob and it’s been working flawlessly for months now with no drop in range.

My old garage door remote was acting up, but these little A23s gave it a new lease on life. The 12 volt output is spot on, and the battery seems to hold its charge well in the remote.