The Nitecore F4 combines a four-bay 18650 battery charger with a portable USB power-bank function. Its LCD shows battery and charging information while the removable-cell design lets suitable charged 18650 batteries power USB devices.
Key features
- Four independent bays for rechargeable 18650 Li-ion/IMR cells
- Charges two cells at up to 1A each or four cells at up to 0.5A each
- Dual USB outputs
- LCD charge and battery information
- Reverse-polarity, short-circuit, overcharge and over-discharge protection
Battery safety: Use only compatible rechargeable cells in good condition, observe correct polarity and never charge a damaged or torn cell. Keep the charger on a non-flammable surface and do not leave charging batteries unattended. Batteries are sold separately.