--- product_id: 49152557 title: "Efest SLIM K2 Intelligent Charger" brand: "efest" price: "AED 106" currency: AED in_stock: true category: "Efest" url: https://www.desertcart.ae/products/49152557-efest-slim-k2-intelligent-charger store_origin: AE region: United Arab Emirates --- # Over-current & voltage protection LED battery life indicator Dual-slot 1A charging Efest SLIM K2 Intelligent Charger **Brand:** efest **Price:** AED 106 **Availability:** ✅ In Stock ## Summary > ⚡ Charge smarter, stay powered longer — never miss a beat! ## Quick Answers - **What is this?** Efest SLIM K2 Intelligent Charger by efest - **How much does it cost?** AED 106 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/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 - • **Portable Powerhouse:** Compact design with durable piano string construction tested to 15,000+ tensile strength cycles. - • **Smart Safety Shield:** Built-in over-current, over-voltage, short-circuit & reverse polarity protection keeps your batteries safe. - • **Independent Dual Slots:** Each slot monitors and charges batteries separately for optimized performance. - • **Intuitive LED Indicators:** Clear battery life status at a glance, eliminating guesswork and boosting efficiency. - • **Universal Battery Compatibility:** Fits 10440 to 26650 sizes with spring-action contacts for seamless charging. ## Overview The Efest SLIM K2 Intelligent Charger is a sleek, dual-slot Li-Ion battery charger compatible with a wide range of battery sizes (10440 to 26650). Featuring 1A charging per slot, Micro USB input, and advanced safety protections, it ensures fast, safe, and efficient charging. Its durable, portable design with LED indicators makes it the perfect companion for professionals who demand reliable power on the 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 A | | Brand | Efest | | Color | Black | | Compatible Devices | 18500, 18650 and 20700 batteries | | Connector Type Used on Cable | MicroUSB | | Current Rating | 1 A | | Customer Reviews | 4.4 4.4 out of 5 stars (306) | | 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? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ae/products/49152557-efest-slim-k2-intelligent-charger](https://www.desertcart.ae/products/49152557-efest-slim-k2-intelligent-charger) --- *Product available on Desertcart United Arab Emirates* *Store origin: AE* *Last updated: 2026-07-25*