Ultra Power is Duracell's most powerful alkaline battery
Ideal for Toys Games and stereos
Comes with PowerCheck, an integrated tester that lets you know how much power is left in your battery
Up to 40% more power in high drain devices (vs. Duracell Plus AA, results vary by device)
Duracell's DURALOCK technology means these batteries are guaranteed to stay powered for up to 5 years* when not being used.
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