NITECORE F1 FlexBank IMR/Li-ion Battery Charger

Video
With a lightweight housing, this NITECORE F1 is designed and strengthened for outdoor activities. Being a flexible outdoor power source with expandability, it comes with up to 90% discharging efficiency. You can use it to charge the batteries or use it as the power supply.
Intelligent Current Management
Capable of charging a USB device and storing power in the battery simultaneously. When the input current is not sufficient, the F1 will prioritize the charging of the external device, and store surplus power in the battery.
Featherweight Housing with Enhanced Ruggedness
The finger-size F1 is made of high-strength, light-weight polycarbonate material. Its structural engineering is purposely redesigned for extra ruggedness to ensure ultimate safety in your dynamic outdoor expedition.
Durable Gold-Plated Contacts
The gold-plated contacts effectively resist sweats, rain and fog, and protect metal components from oxidization and corrosion in outdoor environment while improving circuit efficiency significantly.
Intelligent Charging Circuit
Thanks to the built-in intelligent charging circuit, F1 would automatically identify battery types, and select charging current and mode accordingly.
Real-Time Monitoring
In power bank mode, the indicator LED lights on the NITECORE F1 would display the battery power status in different patterns.
Specification
Brand
NITECORE
Model
F1
Input
DC 5V, ≥500mA
Output
4.2V±1%(slot)/5V±5%(USB), 1000mA Max(slot)/1000mA(USB)
Size
87.2 x 24 x 29.3 mm
Weight
30.4g(without battery and cord)
Compatible With
26650, 18650, 17670, 18490, 17500, 17335, 16340(RCR123), 14500, 10440
Package Contents
1 x NITECORE F1 Battery Charger