Best Efest SLIM K4 Charger The Efest SLIM K4 Charger is conveniently portable and user-friendly. LED indicators to indicate when the changer is in standby mode;charging, or is fully charged. It charges the batteries automatically within a matter of seconds and is designed with both CC and CV safe charging modes. The slots and monitors charge independently. USB-C port reduces the heat while charging. Superior craftsmanship is evidenced by springs made of piano wire; steel cathode with low resistance and hard chromium plating to achieve a more precise charging voltage; and 15,000 spring testing for quality assurance. Parameters: • AC input power: AC 100-240V 50 / 60Hz • DC output power: DC 5V 1A • Auto cut-off voltage 4.20 ± 0.05V • Standby current: <20mA • Auto recharge voltage: 4.10 ± 0.10V • Storage Temperature : -40 ° C ~ 70 ° C • DC input power: DC 5V 1A • 1A CC current: 1,000mA ± 10% • CV cut-off current <100mA • Activation current: 50mA ~ 100mA • Operation Temperature: 0 ° C ~ 40 ° C Six protection levels : 1. Short Circuit protection 2. Automatic over-charging 3. Automatic over-discharging 4. Reverse polarity 5. OV activation recovery function 6. Hardware and software double protection Global Insurance technical support with FCC, CE, and RoHS certifications. Always read the manufacturer’s instructions before using. Efest SLIM K4 Charger Specifications: Auto-detect charging current: 2X 1.0A/ 1X1.0A/4X0.5A/3X0.5A Safe charging mode: CC & CV Safe and convenient USB charger (5V 2A) Monitors and charges each slot independently Low voltage smart activation recovery function Incredibly lightweight and conveniently portable
