Power your devices efficiently with the Efest SLIM K2 Intelligent Charger. Designed for versatility and ease of use, this dual-channel USB-powered charger delivers a seamless charging experience. With 1A output per channel, it ensures fast and reliable charging for your 3.6V/3.7V lithium batteries. The SLIM K2 features advanced technology such as LED charging indicators, low voltage activation, and reverse polarity protection to guarantee safe and effective charging every time. Perfect for daily use across a range of devices, it also includes a three-year warranty for added peace of mind.

Key Features:

• Dual Charging Capability: Simultaneously charges two batteries at 1A per channel, minimizing downtime and keeping your devices powered.
• Smart Activation Function: Revives batteries with low voltage smart activation, optimizing battery life and performance.
• LED Charging Indicators: Individual LED indicators provide real-time updates on the charging status for each channel.
• Comprehensive Safety Features: Equipped with reverse polarity protection to prevent improper battery insertion and an automatic stop to avoid overcharging.
• Wide Compatibility: Compatible with a broad range of lithium battery sizes from 10440 to 26650, meeting diverse charging needs.

Compatible With:

Supports various 3.6V/3.7V lithium battery types, including: 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650.

Technical Specifications:

• Input: AC 100V-240V 50/60Hz or DC 5V 1A
• Output: 4.2V ± 0.05V or DC 5V 1A
• 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 K2 Battery Charger
• USB Cable with Type-C USB Port (5V 2A)
• User Manual and Warranty Card
• Scratch-Off Validation Serial Number