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How much longer would a Fenix flashlight run if I were to use an 18650 3500mAh battery vs an 18650 2600mAh battery?Updated 2 years ago

The flashlight's runtime would increase about 30% if you were to use the 3500mAh Fenix 18650 battery rather than the 2600mAh Fenix 18650 battery.

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