Nitecore Charger F4 power bank

Product Description

Nitecore Charger F4 power bank

The Nitecore Charger F4 power bank  is a universal smart charger and power bank compatible with 18650 batteries. It automatically detects and charges each battery in four slots separately, and detects the battery’s power capacity and determines the appropriate charging method. It can also revive batteries that have too low a voltage and have been over-discharged. If you power your devices via the USB output, the batteries from slots 1 and 2 are discharged first, leaving the remaining two batteries full so that you can use them in your electronic cigarette.

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