Specification:
Product name: Nitecore F1 Power Bank
Input : DC 5V, ≥500mA
Output voltage: 4.2V±1% (slot)\/5V±5% (USB), 1000mA MAX (slot)\/1000mA (USB)
Compatible with: Li-ion \/IMR: 26650\/18650\/17670\/18490\/17500\/17335\/16340(RCR123)\/14500\/10440 (not included)
Size: 3.43 inches × 0.94 inches × 1.15 inches (87.2mm×24mm×29.3mm)
Weight: 1.07oz (30.4g, without cord)

Features:
·Compatible with cylinder rechargeable Li-ion batteries of various sizes
·Intelligent USB charging management system
·Up to 1000mA fast charging through Micro-USB input port
·1000mA fast charging through USB output port
·Optimized design for IMR battery charging circuit
·Three power indicators to indicate charging\/discharging status
·Automatic power level detection
·Instant battery voltage indication upon battery installation
·Automatic battery detection and appropriate charging voltage\/mode selection
·Battery reversed polarity protection and short circuit prevention
·Made from durable PC material (fire retardant\/flame resistant)
·Designed for optimal heat dissipation
·Certified by RoHS, CE, FCC and CEC

Package included:
1 x Nitecore F1 Power Bank
1 x Micro-USB charging cable
1 x rubber band

English Manual