Efest SLIM K4 Type C USB Charger

Discover next-level charging efficiency with the Efest SLIM K4 Type-C USB Charger. Engineered for modern convenience, this advanced charger combines a compact, USB-powered design with a Type-C port for faster, more reliable power delivery. Supporting a wide array of 3.6V/3.7V lithium batteries, it intelligently detects and adjusts the charging current to optimize battery performance and longevity. Featuring safety measures like reverse polarity protection and automatic charge completion, the SLIM K4 offers a dependable and secure charging solution. With a robust three-year warranty, this charger is built to deliver exceptional performance for everyday energy needs.

Key Features:

• Flexible Charging Options: Automatically adjusts charging current with configurations of 2x1.0A, 1x1.0A, 4x0.5A, and 3x0.5A to accommodate various battery sizes and capacities.
• Type-C USB Port: Equipped with a modern Type-C USB port for efficient power input, offering faster and more stable charging.
• LED Charging Indicators: Clear LED indicators provide instant updates on charging status, simplifying battery management.
• Comprehensive Safety Features: Includes reverse polarity protection and automatic shutdown upon charge completion to prevent overcharging and protect battery life.
• Wide Compatibility: Supports an extensive range of lithium-ion IMR battery sizes, including popular options like 18650, 20700, and 21700, as well as smaller sizes like 10440 and 14500.

Compatible With:

Supports a wide variety of 3.6V/3.7V lithium batteries, including: 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650.

Technical Specifications:

• Input: AC 100V-240V 50/60Hz or DC 5V 2A
• Output: 4.2V ± 0.05V
• Battery Output Cutoff Voltage: 4.20V ± 0.05V
• Auto Recharge Voltage: 4.10V ± 0.10V
• Compatible Battery Sizes: ✔ 18650, ✔ 20700, ✔ 21700

What's in the Box:

• Efest SLIM K4 LED Battery Charger
• USB Cable
• User Manual and Warranty Card
• Scratch-Off Validation Serial Number