Why doesn’t my appliance work as long as it did with the batteries that came together with the appliance?

There are several possibilities why this can happen. There are different types of batteries, for instance Zinc Carbon and alkaline. If the previous battery was an alkaline, and the new ones are Zinc carbon, it is possible that the capacity and thus lifespan is less. Please use batteries as described in the manual of the appliance. Also, there are different grades in Alkaline batteries. It is well possible that a higher grade will last longer than an older.

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