Panasonic’s EVOLTA 6LR61EGE alkaline 9 volt battery will keep you going for longer.
Panasonic EVOLTA is the world's longest lasting alkaline battery, according to the Guinness World Records

Panasonic Evolta 9V Alkaline Battery Features:

• Replaces: 1604, 1604A, 1604AC, 4022, 522, 6AM6, 6F22, 6LR61, 9V, 9VOLT, A1604, BLOC, CLR6, K9V, KA9, LR22, MN1604, ND65V, PP3
• Battery Chemistry: Alkaline
• Voltage: 9 (Volts)
• Ideal for use with low-drain applications such as; Radios, Clocks, Remotes,etc.