Efest SLIM K4 Type C USB Charger

Experience cutting-edge charging technology with the Efest SLIM K4 Type C USB Charger, designed to cater to modern energy needs with precision and efficiency. This charger offers a sleek, USB-powered design with a Type-C port, facilitating faster and more reliable connection. It supports a variety of 3.6V/3.7V lithium batteries and intelligently auto-detects the optimal charging current for up to four batteries, enhancing battery life and performance. With advanced features like reverse polarity protection and automatic charge completion detection, the SLIM K4 ensures your batteries are charged safely without the risk of overcharging. Backed by a three-year warranty, this charger combines durability with high performance, making it an ideal choice for tech-savvy users.

• Flexible Charging Options: Auto-detects and adjusts charging current offering 2x1.0A, 1x1.0A, 4x0.5A, and 3x0.5A configurations to suit different battery capacities and sizes.
• Type-C USB Port: Modern Type-C USB port for more efficient power input and stability, ensuring faster charging speeds and reliable operation.
• LED Charging Indicators: Equipped with clear LED indicators that provide real-time feedback on battery charging status, simplifying power management.
• Comprehensive Safety Features: Features robust reverse polarity protection and automatic shutdown upon charge completion to prevent overcharging and extend battery life.
• Wide Compatibility: Ultra-compatible with a broad range of lithium ion IMR batteries, including popular sizes such as 18650, 20700, and 21700, as well as smaller formats like 10440 and 14500.

Compatible with: Ultra-compatible with a variety of 3.6V/3.7V Lithium batteries – 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650

Technical Info:

• Input – AC 100V-240V 50/60Hz or DC 5V 2A
• Output – 4.2V +/-.05V
• Battery Output Cutoff Voltage : 4.20V ± 0.05V
• Auto Recharge Voltage: 4.10V ± 0.10V
• SIZE/TYPE COMPATIBILITY - ✔ 18650 ✔ 20700 ✔ 21700
• 18650

What's in the box:

• Efest SLIM K4 LED battery charger
• USB cable
• User Manual and warranty card
• Scratch-off validation serial number