{"product_id":"xtar-vc4sl-18650-battery-charger-smart-3a-universal-charger-lcd-display-for-rechargeable-batteries-ni-mh-ni-cd-a-aa-aaa-sc-c-li-ion-10440-14500-16340-rcr123a-26650","title":"XTAR VC4SL 4-Bay Smart Battery Charger | QC3.0 3A Fast Charge with Capacity \u0026 IR Test for 3.6V\/3.7V Li-ion 18650 21700 and 1.2V Ni-MH AA AAA","description":"\u003ch2\u003e\u003cspan class=\"\"\u003eProduct Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThe XTAR VC4SL is a high-performance 4-slot smart battery charger engineered for both everyday users and battery enthusiasts. Combining a user-friendly LCD interface with advanced charging algorithms, it supports 3A QC3.0 fast charging via a Type-C port. Going beyond basic charging, the VC4SL features professional-grade testing capabilities, including accurate Capacity Grading to reveal true battery health and Internal Resistance (IR) testing to identify aging cells. Its Storage Mode intelligently charges or discharges batteries to their optimal long-term storage voltage, effectively extending battery lifespan. With a flexible spring-loaded design, it safely accommodates 3.6V\/3.7V Li-ion batteries (from 10440 to 32650) and 1.2V Ni-MH\/Ni-CD batteries (AA\/AAA\/SC\/C), ensuring a truly comprehensive charging station for all your power needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"\"\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eAdvanced LCD Display Interface: Features a clear LCD screen that displays real-time charging progress, input capacity (mAh), charging current (mA), and internal resistance (mΩ) for all 4 slots simultaneously.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQC3.0 3A Fast Charging: Equipped with a widely compatible Type-C port supporting QC3.0 input (9V\/2A). Provides a powerful 3A single-slot fast charge for Li-ion batteries.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThree Professional Battery Modes: Easily switch via the \"Mode\" button between Charging mode, Capacity Grading mode (a full charge-discharge-charge cycle to test true mAh capacity), and Storage mode.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eBuilt-in Internal Resistance Test: Can accurately measure the internal resistance (IR) of the battery. This feature helps users identify weak, aged, or damaged cells before they fail in critical devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eUltra-Precise Voltage Control: Features a high-accuracy charging cut-off voltage of 4.20V ± 0.05V for Li-ion and 1.45V ± 0.1V for Ni-MH. The Storage mode automatically regulates the battery to an optimal 3.7V (Li-ion) or 1.2V (Ni-MH) storage voltage to prevent degradation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eExtensive Battery Voltage Compatibility: The intelligent identification chip automatically recognizes 3.6V\/3.7V lithium-ion batteries and 1.2V Ni-MH\/Ni-CD batteries.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eAdvanced Safety Protections: Implements a dedicated three-stage charging algorithm (Trickle-CC-CV) for Li-ion batteries. Features reverse polarity protection and an automatic stop when fully charged, with the screen flashing \"FULL\" to confirm.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003ePortable and Compact Design: Features a streamlined, compact form factor measuring 156 x 115 x 35mm, weighing 212g. Includes a Type-C cable, manual, and premium travel storage pouch.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"\"\u003eProduct Parameters\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eGeneral Specifications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eProduct Model: XTAR VC4SL\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eInput Power: QC3.0 Type-C (9V\/2A)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eConstant Charging Current: 3Ax1 \/ 2Ax2 \/ 1Ax4 \/ 0.5Ax4 \/ 0.25Ax4\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCharging Cut-off Current: ≤120mA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eOperating Temperature: 0°C - 40°C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eDimensions: L156 x W115 x H35 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eNet Weight: 212g\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eVoltage Specifications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eInput Voltage: 9V (QC3.0)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCompatible Battery Voltage: 3.6V \/ 3.7V (Li-ion), 1.2V (Ni-MH\/Ni-CD)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCharging Cut-off Voltage: 4.20V ± 0.05V (Li-ion) \/ 1.45V ± 0.1V (Ni-MH)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eOptimal Storage Voltage: 3.7V (Li-ion), 1.2V (Ni-MH)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSupported Battery Types \u0026amp; Sizes:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSupported Types: 3.6V \/ 3.7V Li-ion (IMR\/INR\/ICR) and 1.2V Ni-MH\/Ni-CD\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSupported Li-ion Sizes: 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, 32650 (Flat Top)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSupported Ni-MH\/Ni-CD Sizes: AAA, AA, A, SC, C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"\"\u003eApplications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eProfessional maintenance and charging for high-performance EDC tactical flashlights and headlamps.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCapacity sorting and testing for 18650\/21700\/26650 batteries used in RC drones and hobby electronics.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eExtending the life of 1.2V AA\/AAA Ni-MH batteries commonly used in remotes, wireless mice, and digital cameras.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003ePre-conditioning batteries for storage in emergency kits, outdoor survival gear, and power banks.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"\"\u003eFrequently Asked Questions (FAQ)\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ1: What is included in the package?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA1: The package includes 1x XTAR VC4SL Smart Charger, 1x Type-C Fast Charging Cable, 1x User Manual, and 1x Convenient Storage Pouch.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ2: Can I charge protected 21700 batteries with the VC4SL?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA2: Yes. The VC4SL features an extendable spring-loaded battery bay specifically designed to accommodate protected 20700 and 21700 batteries safely and easily.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ3: What exactly is the \"Capacity Grading\" mode?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA3: Capacity Grading mode runs a full cycle: the charger first charges the battery to full, then discharges it completely, and finally recharges it to full. This accurately measures the battery's real capacity (mAh), helping you discard aging batteries that no longer hold their rated charge.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ4: What is the \"Storage Mode\" used for?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA4: If you do not plan to use a battery for a long period, the Storage Mode will automatically charge or discharge it to its optimal long-term storage voltage (3.7V for Li-ion, 1.2V for Ni-MH). Maintaining batteries at this specific voltage significantly prevents capacity loss and extends their overall lifespan.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ5: How do I achieve the maximum 3A fast charging speed?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: To reach a 3A fast charging current, you must use a compatible QC3.0 (9V\/2A) power adapter and charge only a single battery in one of the slots. The charger will automatically detect the input voltage and adjust the current accordingly.\u003c\/span\u003e\u003c\/p\u003e","brand":"XTAR","offers":[{"title":"Default Title","offer_id":51454130651382,"sku":"OAS237","price":35.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/xtar-vc4sl-lcd-smart-charger-main_b8814d6a-1fd3-40fd-b6ea-c56ed99f878c.webp?v=1786965407","url":"https:\/\/oneandes.com\/products\/xtar-vc4sl-18650-battery-charger-smart-3a-universal-charger-lcd-display-for-rechargeable-batteries-ni-mh-ni-cd-a-aa-aaa-sc-c-li-ion-10440-14500-16340-rcr123a-26650","provider":"OneAndes","version":"1.0","type":"link"}