Duracell Ultra AA alkaline batteries with high performance cathode technology. Duracell Ultra Power provides up to 40% more power vs Duracell Plus Duracell Ultra Power batteries have POWERCHECK, an integrated tester that always let’s you know how much power is left in your battery. Duracell’s DURALOCK technology means these batteries are guaranteed to stay powered for up to 5 years when not being used. This huge leap forward in battery technology has been made possible by improvements in the purity of ingre

Product Features

• Duracell Ultra Power alkaline batteries use unique Powercheck technology
• Our #1 longest-lasting battery enabled with high density core (Duracell’s longest-lasting AA alkaline battery on average across 2015 IEC standard tests)
• Our best battery, suited for everyday devices with extra performance for high drain devices
• Superior Nylon top closure helps preventing our batteries from leakage
• Duracell’s Duralock keeps unused batteries powered for up to 10 years in ambient storage
• Available in AA, AAA, C, D and 9V sizes

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