--- product_id: 49152557 title: "Efest SLIM K2 Intelligent Charger" brand: "efest" price: "€ 36.42" currency: EUR in_stock: true category: "Efest" url: https://www.desertcart.de/products/49152557-efest-slim-k2-intelligent-charger store_origin: DE region: Germany --- # 1A Fast Charging Dual Slot Charging Safety Protections Efest SLIM K2 Intelligent Charger **Brand:** efest **Price:** € 36.42 **Availability:** βœ… In Stock ## Summary > πŸ”Œ Power Up Your Life with Efest! ## Quick Answers - **What is this?** Efest SLIM K2 Intelligent Charger by efest - **How much does it cost?** € 36.42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/49152557-efest-slim-k2-intelligent-charger) ## Best For - efest enthusiasts ## Why This Product - Trusted efest brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Compact & Portable:** Sleek design that fits in your pocket or bag effortlessly. - β€’ **LED Life Indicator:** Stay informed with a battery life LED indicator light. - β€’ **Safety First, Always:** Equipped with over-current, over-voltage, and short-circuit protection. - β€’ **Universal Compatibility:** Compatible with a wide range of battery sizes for all your needs. - β€’ **Charge Smart, Live Smart:** Intelligent dual-slot design for efficient charging. ## Overview The Efest SLIM K2 Intelligent Charger is a versatile and compact charging solution designed for a wide range of battery sizes. With dual slots for independent monitoring, safety features, and a sleek design, it ensures your devices are always powered up and ready to go. ## Description Efest Slim K2 Charger is a high quality, dual slot Li-Ion battery charger that features a portable design with 1A charging, MicroUSB input and a LED indicator light. The Efest can charge most Li-ion batteries that run 3.6 to 3.7 3.6V/3.7V with its spring action contact that can adjust to many sizes. Features and Specs: Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 26500, 26650 Portable Design with Quality Piano Strings - 15,000+ Tensile Test Features over-current, over-voltage, short-circuit, and reverse polarity protection Battery Life LED Indicator Light Dual Slot 5V/1A Micro USB Charger Each Slot monitors independently AC Input Power: AC 100~240V 50/60Hz DC Output Power: DC 5V 1A DC Input Power: DC 5V 1A 1A CC Current: 1000mA (+/-10%) Auto Cut-Off Voltage: 4.20 (+/-0.05V) CV Cut-Off Current: <100mA Standby Current: <20mA Activation Current: 50mA~100mA Auto Recharge Voltage: 4.10 (+/-0.10V) Operation Temperature: 0C ~ 40C Storage Temperature: -40C ~ 70C Fire Retardant Shell Batteries Not Included ## Features - Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 26500, 26650 - Portable Design with Quality Piano Strings - 15,000+ Tensile Test - Features over-current, over-voltage, short-circuit, and reverse polarity protection - Battery Life LED Indicator Light - Dual Slot 5V/1A Micro USB Charger Each Slot monitors independently ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0747K3YHM | | Amperage | 1 Amps | | Brand | Efest | | Color | Black | | Connector Type Used on Cable | MicroUSB | | Current Rating | 1 Amps | | Customer Reviews | 4.4 4.4 out of 5 stars (305) | | Global Trade Identification Number | 04251256230451 | | Input Voltage | 240 Volts | | Item Dimensions D x W x H | 0.04"D x 0.04"W x 0.04"H | | Manufacturer | PrimeDeals | | Mfr Part Number | CharG-SlimK2efest | | Model Number | 7545912627 | | Number of Ports | 2 | | Output Voltage | 5 Volts | | UPC | 689343495478 689343495515 | | Unit Count | 1 Count | ## Product Details - **Brand:** Efest - **Color:** Black - **Input Voltage:** 240 Volts - **Output Voltage:** 5 Volts - **Product Dimensions:** 0.04"D x 0.04"W x 0.04"H ## Images ![Efest SLIM K2 Intelligent Charger - Image 1](https://m.media-amazon.com/images/I/71z-O4nrHoL.jpg) ![Efest SLIM K2 Intelligent Charger - Image 2](https://m.media-amazon.com/images/I/41nk9CJSofL.jpg) ![Efest SLIM K2 Intelligent Charger - Image 3](https://m.media-amazon.com/images/I/41pYSnORWiL.jpg) ![Efest SLIM K2 Intelligent Charger - Image 4](https://m.media-amazon.com/images/I/41srff6gnnL.jpg) ![Efest SLIM K2 Intelligent Charger - Image 5](https://m.media-amazon.com/images/I/517FcxDaeiL.jpg) ## Questions & Answers **Q: Why is the charger blinking?** A: Probably defective. Mines doesn’t blink. **Q: Will this disconnect if the batteries are full ?** A: It shows a different light if batteries are fully charged so I assume yes **Q: What color does it change to when the batteries are fully charged?** A: Depending on the battery, the light above the section that the battery is in will turn blue or both lights will turn blue when the battery is fully charged. I haven’t put 2 batteries in to charge at the same time. I did once and neither light turned blue. I just charge 1 battery at a time. **Q: Can you charge one battery at a time?** A: Yes ## Frequently Bought Together - Efest SLIM K2 Intelligent Charger - Efest LUSH Q4 Intelligent LED Battery Charger for 20700 / 18650 / 26650 / 26500 / 18500 / 18350 / 17340 / 16340 / 14500 / 10440 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.de/products/49152557-efest-slim-k2-intelligent-charger](https://www.desertcart.de/products/49152557-efest-slim-k2-intelligent-charger) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-06-13*