Range Finders for PCP Rifles? any suggestions?

Nikon Aculon here. Love the range finder, quick, accurate and really clear.

​I don't like the battery. Advice - make sure the battery is available at the local 5 & Dime. 

Mine uses a CR2 battery which isn't the most common power plant on the planet. They aren't cheap either at 2 energizers for $6.65 on Amazon. less expensive per battery in 10 packs, but I don't need 10.

Minor gripe considering how good the finder is, but it's frustrating to be forced to order the batteries for such a basic item.