This blew my mind! Kirkland batteries from Costco are higher capacity than Energizer Max and just a little lower than Duracell Quantum. You'd be foolish to buy over-priced, over-advertised name brand batteries. I know I was. Tested: Ikea, Walmart, Costco, Duracell, Energizer Long term projects here: http://www.Patreon.com/AvE