Fenix 21700 Rechargeable Battery h

Fenix 21700 Rechargeable Battery h. The maximum current for the ARB-L21-4000P is 18A with a continuous output current of 10A. Why is this necessary? The higher current allows the 21700 battery longer runtimes in flashlights. As with all Fenix rechargeable batteries the 21700 4000mAH has three sets of overheat protection including pressure relief microporous and PTC cathodal block. Specifications for Fenix 4000mAh 21700 Rechargeable Battery: Manufacturer: Fenix Battery Quantity: 1 Battery Capacit