Product Highlights:
1 Bay Compact USB Charger
Single charging speed — 1A x 1
LED charging indicator
Compatible with 18650, 20700, 21700, 26650 and more
Reverse polarity protection protects if cell is entered in the wrong way

Packaging Contents:
Efest Slim K1 Battery Charger
USB Cable
User Manual

Additional Features:
Fast Charging Mode: 1.0A
Auto Detect Charging Function
Low Voltage Activation Function
Short Circuit Protection
Reverse Polarity Protection
Over Charging Protection
Piano Wire Spring Provides Smooth Sliding Action — 15000+ Tensile Test
Chromium Plated Steel Cathode Insures Low Resistance While Achieving A More Precise Charging Voltage

Specifications:
Input: DC 5V 1A
Standby Current: <20mA Activation Current: 50mA - 100mA 1.0A CC Current: 1000mA ± 10% Auto Recharge Voltage: 4.10V ± 0.10V Auto Cutoff Voltage: 4.20V ± 0.05V CV Cutoff Current: <100mA Operation Temperature: 0°C ~ 40°C