{"product_id":"inr18650-20r4-18650-battery-2000mah-10c-20a-high-drain-3-6v-li-ion-rechargeable-cell-flat-top-button-top-spot-welded-wired-options","title":"INR18650-20R4 18650 Battery 2000mAh 10C 20A High Drain 3.6V Li-ion Rechargeable Cell (Flat Top \/ Button Top \/ Spot Welded \/ Wired Options)","description":"\u003ch3\u003e\u003cspan class=\"\"\u003eProduct Description\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003ePower Your High-Demand Devices with Confidence!\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eThe INR18650-20R4 is a high-performance lithium-ion cell engineered for high-drain applications. Featuring a nominal capacity of 2000mAh and an impressive 10C (20A) continuous discharge rate, this battery delivers robust power with ultra-low internal resistance of just 14mΩ. Whether you are powering a high-intensity tactical flashlight, a high-wattage  power tools, or building a custom battery pack, the INR18650-20R4 offers reliable, consistent energy.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eWe offer four variants to match your specific assembly needs:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eFlat Top: Standard flat contact, fits most general battery compartments with spring-loaded contacts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eButton Top: Features a raised positive contact, perfect for flashlights and devices that require this specific geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSpot Welded: Comes with nickel strips pre-welded, saving you the hassle of spot welding for your DIY battery pack projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003ePre-wired: Comes with high-quality silicone wires pre-soldered (Red\/Black), ready for plug-and-play connection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eHigh Discharge Rate: 10C continuous discharge (20A max), delivering strong power output with minimal voltage sag.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eUltra-Low IR: Internal resistance of only 14mΩ±3, ensuring minimal heat generation and maximum device efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eBuilt for Safety: Features a built-in pressure relief vent and stable chemical formulation for safe operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eVersatile Configurations: Available in Flat Top, Button Top, Spot Welded, and Wired versions to suit any project.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eParameters\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eModel: INR18650-20R4\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eChemistry: Li-ion\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eTypical Capacity: 2000mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eMinimum Capacity: 1900mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eNominal Voltage: 3.6V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCharge Cut-off Voltage: 4.2V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eMax Continuous Charge Current: 4A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eMax Continuous Discharge Current (10C): 20A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eDischarge Cut-off Voltage: 2.5V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eInternal Resistance: 14mΩ ± 3\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eDimensions (Flat Top): 18mm x 65mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eNet Weight: Approx. 44g\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eApplications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eHigh-Intensity Flashlights \u0026amp; Headlamps (Recommended: Button Top)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCordless Power Tools \u0026amp; Electric Screwdrivers (Recommended: Flat or Welded)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eRC Cars, Drones, and Airplanes (Recommended: Welded or Wired)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eDIY Power Banks \u0026amp; Custom Battery Packs (Recommended: Spot Welded)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eFAQ\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ1: What's the difference between Flat Top and Button Top, and which should I choose?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA: Flat Top cells have a flat positive terminal, suitable for devices with built-in spring contacts. Button Top cells have a raised nub on the positive terminal, specifically designed for flashlights that require this extra height. Please check your device's battery compartment depth before purchasing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ2: Can I use the \"Spot Welded\" or \"Wired\" versions directly?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA: Yes. The wired version comes with pre-soldered leads for easy connection to your BMS or device. The spot-welded version is ideal if you plan to solder them into a custom battery pack. Important: Ensure correct polarity connection and avoid short circuits at all times.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ3: Is this a suitable replacement for standard 20R batteries?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA: Yes, the INR18650-20R4 is a direct equivalent to the classic 20R cell, with matching capacity, discharge rate, and internal resistance parameters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSafety Warning:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eDo not throw into fire, water, or attempt to disassemble.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eAlways charge using a professional charger with overcharge protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eNever over-discharge (below 2.5V) or overcharge (above 4.2V).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eDo not short-circuit the positive and negative terminals.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Samsung","offers":[{"title":"Flat Top","offer_id":51454222467318,"sku":"OAS1727","price":5.98,"currency_code":"USD","in_stock":true},{"title":"Button Top","offer_id":51454222500086,"sku":"OAS1728","price":5.98,"currency_code":"USD","in_stock":true},{"title":"Spot Welded Tabs","offer_id":51454222532854,"sku":"OAS1729","price":5.98,"currency_code":"USD","in_stock":true},{"title":"Pre-wired with Leads","offer_id":51454222565622,"sku":"OAS1730","price":6.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/inr18650-20r4-18650-battery-main-hero-3_2522b1d7-199f-4744-a940-ed01ba44cb14.webp?v=1786968601","url":"https:\/\/oneandes.com\/products\/inr18650-20r4-18650-battery-2000mah-10c-20a-high-drain-3-6v-li-ion-rechargeable-cell-flat-top-button-top-spot-welded-wired-options","provider":"OneAndes","version":"1.0","type":"link"}