{"product_id":"xtar-mc4s-18650-battery-2a-charger-for-3-7v-li-ion-battery-1865026650217001850018350-1-2v-ni-mh-ni-cd-a-aa-aaa-rechargeable-batteries","title":"XTAR MC4S 4-Bay Smart Battery Charger | Type-C Input for 3.6V\/3.7V Li-ion 18650 21700 \u0026 1.2V Ni-MH AA AAA Batteries","description":"\u003ch2\u003e\u003cspan class=\"\"\u003eProduct Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThe XTAR MC4S is a compact, lightweight, and highly versatile 4-slot smart battery charger designed for both 3.6V\/3.7V Li-ion and 1.2V Ni-MH\/Ni-CD batteries. Equipped with a universal Type-C input, it features four fully independent charging circuits that intelligently identify battery types and automatically switch to the optimal charging strategy. With clear LED indicators, built-in 0V activation to revive over-discharged batteries, and precise charging algorithms, the MC4S provides a safe and efficient charging experience. Please note the physical slot limitations for longer batteries: Slots CH1 and CH4 can accommodate batteries up to 26650 size, while Slots CH2 and CH3 support batteries up to 21700 size. \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eImportant: This charger does NOT support protected 20700 and 21700 batteries.\u003c\/span\u003e\u003c\/strong\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=\"\"\u003e4 Fully Independent Charging Slots: Supports mixed charging of Li-ion and Ni-MH\/Ni-CD batteries simultaneously without mutual interference.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSmart Battery Type Identification: Automatically recognizes the battery type and applies the most suitable charging strategy (TC-CC-CV for Li-ion; precise 0ΔV and -ΔV cut-off for Ni-MH\/Ni-CD) to ensure full charge and battery protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eIntuitive LED Indicator Lights: Features simple and clear LED status lights. Solid Red indicates charging or activation; Solid Green indicates fully charged, empty slot, or poor contact; Flashing Red and Green indicates reversed polarity (please correct immediately).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003e0V Activation Technology: Equipped with the XTAR signature 0V activation feature, which can safely recover and revive over-discharged lithium batteries.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eType-C Input \u0026amp; Wide Compatibility: Features a modern USB Type-C port. Supports charging via power adapters, laptops, or car chargers. Compatible with a wide range of battery sizes (see parameters for space limitations).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eComprehensive Safety Protections: Built-in overcurrent, overcharge, overvoltage, and short-circuit protections. The charger automatically stops charging when the battery is fully charged for peace of mind.\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\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eModel: XTAR MC4S\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eInput Power: DC 5V 2.1A (Type-C)\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: 1A x 2 \/ 0.5A x 4\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: 4.20 ± 0.05V\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: ≤70mA\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 - 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: L100 x W97 x H26.5 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: 95g\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSupported Battery Types: 3.6V \/ 3.7V Li-ion (IMR\/INR\/ICR), 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 Sizes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCH1 \u0026amp; CH4: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCH2 \u0026amp; CH3: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eImportant Restrictions:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThe maximum physical space allows for two 26650 batteries in slots CH1 \u0026amp; CH4, plus two 21700 batteries (without protection boards) in slots CH2 \u0026amp; CH3.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eThis charger does NOT support protected 20700 and 21700 batteries.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\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=\"\"\u003eDaily charging and maintenance of 18650\/21700 Li-ion batteries used in EDC flashlights and tactical lights.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eReliable and safe power replenishment for 1.2V AA\/AAA Ni-MH batteries in remote controls, 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=\"\"\u003eA compact, portable charging solution for outdoor headlamps, camping lanterns, and survival gear.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eEfficient charging for rechargeable batteries used in radio communication equipment and intercoms.\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 MC4S Smart Charger, 1x USB-A to USB-C Charging Cable, and 1x User Manual. (Batteries are not included).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ2: Can the MC4S charge protected 21700 batteries?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA2: No. Please note that the MC4S does NOT support protected 20700 and 21700 batteries. Slots CH2 and CH3 are physically limited to 21700 batteries without protection boards.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ3: What does the flashing Red and Green LED lights mean?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA3: When the LED lights flash between red and green, it indicates the battery has been inserted with reversed polarity. Please immediately remove the battery and insert it in the correct orientation to begin charging.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ4: What is the maximum charging current of the MC4S?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA4: The MC4S supports a maximum charging current of 1A for 2 slots simultaneously, or 0.5A for all 4 slots simultaneously, ensuring safe and balanced charging for different battery capacities.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ5: Can I charge a Li-ion and a Ni-MH battery at the same time?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: Yes. The MC4S features 4 independent charging circuits. You can safely mix charge a 3.6V\/3.7V Li-ion battery and a 1.2V Ni-MH battery in different slots simultaneously.\u003c\/span\u003e\u003c\/p\u003e","brand":"XTAR","offers":[{"title":"Default Title","offer_id":51454142546166,"sku":"OAS296","price":19.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/xtar-mc4s-4bay-simple-charger-main_109bd538-251c-4a0c-b9f2-2a8431f28f88.webp?v=1786965665","url":"https:\/\/oneandes.com\/products\/xtar-mc4s-18650-battery-2a-charger-for-3-7v-li-ion-battery-1865026650217001850018350-1-2v-ni-mh-ni-cd-a-aa-aaa-rechargeable-batteries","provider":"OneAndes","version":"1.0","type":"link"}