{"product_id":"ms-202a-2-slot-18650-battery-charger-with-ac-wire-cord-3-7v-li-ion-wall-charger","title":"MS-202A 2-Slot 18650 Battery Charger with AC Wire Cord | 3.7V Li-ion Wall Charger","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe \u003cstrong\u003eMS-202A 2-Slot 18650 Battery Charger\u003c\/strong\u003e is a reliable, direct wall-plug charging solution for standard 3.7V cylindrical Lithium-ion batteries. Unlike USB-based chargers, this \"wire type\" design features an integrated AC power cord, allowing you to plug it directly into any standard 100V-240V wall outlet for a consistent, high-efficiency power draw. Equipped with two dedicated slots, it is designed to safely recharge the heavy-duty 18650 cells used in tactical flashlights, DIY drone builds, and custom robotic power packs. Built-in LED indicators provide real-time status updates, while automatic voltage cut-off technology prevents overcharging, ensuring your batteries maintain maximum lifespan and peak performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePeople also search for:\u003c\/strong\u003e MS-202A 18650 charger, dual slot wall charger, wire type 3.7v charger, ac plug lithium battery charger, safe 18650 charging station, direct plug li-ion charger, 2 bay 18650 charger.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e MS-202A (Wire Type)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e AC 100V — 240V (50\/60Hz) Universal Input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e DC 4.2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Current:\u003c\/strong\u003e ~1000mA (Max shared output)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Battery Type:\u003c\/strong\u003e 3.7V 18650 Lithium-ion Batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Channels:\u003c\/strong\u003e 2 Slots\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug Type:\u003c\/strong\u003e Integrated AC Wire (Standard 2-Pin Plug)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus Indicators:\u003c\/strong\u003e LED lights (Red = Charging, Green = Fully Charged)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eApplications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobotics \u0026amp; Hardware Automation:\u003c\/strong\u003e Keeping backup 18650 cells fully charged for continuous operation of custom robotic arms and heavy-duty motor shields.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTactical \u0026amp; EDC Lighting:\u003c\/strong\u003e Recharging high-drain cells for high-lumen LED flashlights, headlamps, and camping gear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIoT \u0026amp; Microcontrollers:\u003c\/strong\u003e Providing stable, rechargeable power for remote ESP32, Arduino, and Raspberry Pi sensor nodes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral Electronics:\u003c\/strong\u003e Maintaining batteries for handheld radios, portable mini fans, and custom 3D-printed gadgets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eUsage Notes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Placement:\u003c\/strong\u003e Always ensure correct polarity by aligning the positive (+) and negative (-) terminals of the battery with the molded markings inside the charger tray.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Do not cover the charger with fabric or paper while in use. Place it on a hard, flat surface in a well-ventilated area to allow natural heat dissipation during the charging cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemistry Compatibility:\u003c\/strong\u003e This charger is strictly calibrated for \u003cstrong\u003e3.7V Lithium-ion (Li-ion)\u003c\/strong\u003e batteries. Never attempt to charge 1.2V NiMH\/NiCd (standard AA\/AAA) or disposable alkaline batteries, as this poses a fire risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eFAQ\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I charge a single 18650 battery, or do I need to insert two at the same time?\u003c\/strong\u003e\u003cbr\u003e\nA: You can charge a single battery perfectly fine. The slots operate independently, so you can charge one or two cells simultaneously without any issues.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I know when the battery is completely finished charging?\u003c\/strong\u003e\u003cbr\u003e\nA: The built-in LED indicator will glow solid RED while the battery is actively charging and will switch to a solid GREEN light the moment the battery reaches its full 4.2V capacity.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is the AC power cord detachable?\u003c\/strong\u003e\u003cbr\u003e\nA: No, the MS-202A is specifically a \"wire type\" charger, meaning the AC power cord is permanently and securely wired into the charger base for an uninterrupted connection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this charge other cylindrical battery sizes like 14500 or 26650?\u003c\/strong\u003e\u003cbr\u003e\nA: The MS-202A tray is molded specifically for the physical dimensions of standard 18650 batteries. While the 3.7V charging voltage is the same, smaller or wider cells may not physically fit securely against the contacts.\u003c\/p\u003e\n\n\u003ch5\u003ePackage Includes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e1 × MS-202A 2-Cell 18650 Battery Charger (with attached AC power wire)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TOMSON ELECTRONICS","offers":[{"title":"Default Title","offer_id":48016245063918,"sku":"SMP-28424","price":149.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2132\/9029\/files\/CHARGER18650WITHWIRE.webp?v=1778846228","url":"https:\/\/www.tomsonelectronics.com\/products\/ms-202a-2-slot-18650-battery-charger-with-ac-wire-cord-3-7v-li-ion-wall-charger","provider":"Tomson Electronics ","version":"1.0","type":"link"}