Difference between blue CR2 marked 03-2019 and black CR2 marked 03-2021
Have baugt two diffrent types of CR2 of the make Energizer. The blue marked 3.0V 03-2019 "Energizer Lithium Photo" seems to last about twice as long as the black CR2 marked 3.0V 03-2021 "Energizer". What is the difference between the two models.
I purchase specialty batteries at: Bulk supplier
1 year, 6 months ago