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Nitecore F2 Dual-Slot FlexBank USB Li-ion Charger and Powerbank


Availability: In Stock

Regular Price: $16.95

Special Price $13.90



The F2 Flex is Nitecore's new, dual-slot, outdoor power bank battery charger. The F2 is a dual purpose battery charger and power bank for charging 18650, RCR123, 26650, 14500, and other IMR/Lithium Ion batteries. The charger can also be used with batteries as a power bank to charge cellphones, flashlights, headlamps, and other USB devices on the go. Enjoy up to 2A charging speeds so your batteries and devices can power up quickly. Lightweight and durable, this charger is a fantastic way to always have power at your fingertips - no matter how far you travel. Ideal for backpacking, this is the perfect charger for the rugged nature-lovers out there.


  • Compatible with cylindrical rechargeable Li-ion batteries of various sizes
  • Intelligent USB charging and regulation control circuit
  • Battery charging and discharging capability
  • Universal micro-USB 3.0 input port, accelerated charging rate up to 1A each bay
  • USB output up to 2A
  • Charge two batteries simultaneously and independently
  • Built-in power indicators display battery status
  • Automatic power detection and voltage reporting upon battery installation
  • Optimized IMR battery charging
  • Automatic identification for batteries of different types and proceed with appropriate charging current and mode
  • Reverse polarity protection and anti-short circuit protection
  • Made from fire retardant PC materials
  • Optimal heat dissipation design
  • RoHS, CE, FCC and CEC certified


Input: DC:5V ≥0.5A (USB compatible)
Output voltage: 4.2V±1% (Battery) / 5V±5% (USB)
Output current: USB 2A MAX Battery: 2×1A MAX

Dimensions: 3.7” ×1.73” ×0.98”(94mm×44mm×25mm)
Weight: 1.64oz / 46.5g (without batteries and power cord)

Compatible with:
Li-ion / IMR: 26650 / 18650 / 17670 / 18490 / 17500 / 17335 / 16340 / (RCR123) / 14500 / 10440