I ordered 25 CR123A 3 volt lithium batteries. Good price, fast delivery. 3.2 to 3.3 volts on every one (I checked them all because I misread the expiration date on the batteries). Two bucks per battery (shipping included) vs $4.50 to $5.00 locally. Expiration date March 2019. These should last me a year or so, but when I need more, it's Battery Junction.