For their price they work well. Haven't had them long enough to give longevity ratings. The only negative at the moment is that I noticed it when I put them in the charger. They are a bit longer than other AAA batteries I use. In the photo I uploaded, this battery is at the bottom. Another battery is Panasonic eneloop. I'm guessing the 5-10m difference. Not a deal killer in most apps, but it made the batteries noticeably harder to put on the charger. Some of them jumped back. The rest is good so far. Will report if there are problems with life expectancy.
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