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Keep your devices powered with the Duracell 6LR61/MX1604 Ultra Power Alkaline 9V PP3 Battery.
Batteries in the Duracell Ultra Power series come with a Powercheck, an integrated tester that lets you know how much power is left in the battery.
The Duracell Ultra Power Alkaline 9V PP3 Battery provides approximately up to 40% more power compared to Duracell Plus batteries.
You can use the Duracell 6LR61/MX1604 Ultra Power Alkaline 9V PP3 Battery in
pocket transistor radios,
and any other devices that take a PP3 9V battery.