Capacity test and comparison of AA alkaline batteries. Which of those single use (non-rechargeable) batteries lasts the longest? I compared brands like Duracell, GP, Varta, Energizer and also a cheap K-Classic battery from Kaufland supermarket. None of the batteries says anything about its mAh capacity, it's always just "super long lasting", so I made a test using my battery analyzer. The result was quite surprising!
This is my homemade battery analyzer:
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