4 of 4 people found the following review helpful
You get what you pay for.,
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This review is from: Smart Li-ion 4 Channels Battery Charger and FOUR 3100mAh Panasonic 18650 Lithium-ion Batteries Charging Kit (Electronics)
I agree with the independent research companies who have published reviews on a variety of different batteries that these are one of the best available. They are everything they claim and seem to last longer before needing recharging than most of their competitors. Based on my own experience spend the extra and get a quality battery that offers an excellent discharge rate and the longevity you would come to expect when dealing with a major manufacturer such as Panasonic.