{"product_id":"samsung-40t-21700-4000mah-35a-battery","title":"Samsung 40T | 21700 4000mAh 35A Battery","description":"\u003ch3 data-end=\"130\" data-start=\"115\"\u003e🔋 Overview\u003c\/h3\u003e\n\u003cp data-end=\"207\" data-start=\"131\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eThe Samsung 40T is a premium 21700-sized Li‑ion cell engineered for power-hungry applications. With \u003cstrong data-end=\"113\" data-start=\"100\"\u003e4,000 mAh\u003c\/strong\u003e capacity and a true continuous discharge rating of \u003cstrong data-end=\"173\" data-start=\"165\"\u003e35 A\u003c\/strong\u003e, this cell delivers rare balance between high energy and high power—ideal for e‑bikes, high-wattage flashlights, power tools, and more.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"229\" data-start=\"209\"\u003e⚡ Why It Matters\u003c\/h3\u003e\n\u003cul data-end=\"387\" data-start=\"230\"\u003e\n\u003cli data-end=\"308\" data-start=\"230\"\u003e\n\u003cp data-end=\"308\" data-start=\"232\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-is-only-node=\"\" data-end=\"26\" data-start=\"0\"\u003eNo capacity compromise\u003c\/strong\u003e: Unlike many “high-drain” cells, the 40T maintains full capacity without throttling or premature cutoff, delivering consistent performance under load\u003c\/span\u003e .\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"387\" data-start=\"309\"\u003e\n\u003cp data-end=\"387\" data-start=\"311\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-is-only-node=\"\" data-end=\"24\" data-start=\"0\"\u003eBuilt by Samsung SDI\u003c\/strong\u003e, a global leader in battery R\u0026amp;D, ensuring reliable quality and robust cycle life.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"392\" data-start=\"389\"\u003e\n\u003ch3 data-end=\"416\" data-start=\"394\"\u003e🧪 Technical Specs\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_16hzy_1\"\u003e\n\u003cdiv class=\"_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable style=\"width: 128.393%;\" class=\"w-fit min-w-(--thread-content-width)\" data-end=\"1195\" data-start=\"418\"\u003e\n\u003cthead data-end=\"445\" data-start=\"418\"\u003e\n\u003ctr data-end=\"445\" data-start=\"418\"\u003e\n\u003cth style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"428\" data-start=\"418\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"width: 26.187%;\" data-col-size=\"sm\" data-end=\"445\" data-start=\"428\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"1195\" data-start=\"473\"\u003e\n\u003ctr data-end=\"537\" data-start=\"473\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"496\" data-start=\"473\"\u003e\u003cstrong data-end=\"495\" data-start=\"475\"\u003eNominal Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-col-size=\"sm\" data-end=\"537\" data-start=\"496\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e4,000 mAh\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"586\" data-start=\"538\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"578\" data-start=\"538\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"32\" data-start=\"0\"\u003eContinuous Discharge Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-col-size=\"sm\" data-end=\"586\" data-start=\"578\"\u003e35 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"650\" data-start=\"587\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"609\" data-start=\"587\"\u003e\u003cstrong data-end=\"608\" data-start=\"589\"\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-end=\"650\" data-start=\"609\" data-col-size=\"sm\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e3.6 V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"736\" data-start=\"651\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"693\" data-start=\"651\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"22\" data-start=\"0\"\u003eMax Charge Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-col-size=\"sm\" data-end=\"736\" data-start=\"693\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e4.2 V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"822\" data-start=\"737\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"779\" data-start=\"737\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"21\" data-start=\"0\"\u003eDischarge Cut-off\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-col-size=\"sm\" data-end=\"822\" data-start=\"779\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e2.5 V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"883\" data-start=\"823\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"840\" data-start=\"823\"\u003e\u003cstrong data-end=\"839\" data-start=\"825\"\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-end=\"883\" data-start=\"840\" data-col-size=\"sm\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eØ 21.1 mm × 70.4 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"906\" data-start=\"884\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"897\" data-start=\"884\"\u003e\u003cstrong data-end=\"896\" data-start=\"886\"\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-end=\"906\" data-start=\"897\" data-col-size=\"sm\"\u003e~68 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"966\" data-start=\"907\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"923\" data-start=\"907\"\u003e\u003cstrong data-end=\"922\" data-start=\"909\"\u003eCell Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-col-size=\"sm\" data-end=\"966\" data-start=\"923\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eINR 21700, flat-top, unprotected\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1023\" data-start=\"967\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"980\" data-start=\"967\"\u003e\u003cstrong data-end=\"979\" data-start=\"969\"\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-col-size=\"sm\" data-end=\"1023\" data-start=\"980\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eSouth Korea (Samsung SDI)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1085\" data-start=\"1024\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"1042\" data-start=\"1024\"\u003e\u003cstrong data-end=\"1041\" data-start=\"1026\"\u003eDesignation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-end=\"1085\" data-start=\"1042\" data-col-size=\"sm\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eINR21700‑40T, 40T3\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1195\" data-start=\"1086\"\u003e\n\u003ctd style=\"width: 73.5325%;\" data-col-size=\"sm\" data-end=\"1112\" data-start=\"1086\"\u003e\u003cstrong data-end=\"1111\" data-start=\"1088\"\u003eDatasheet Available\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 26.187%;\" data-col-size=\"sm\" data-end=\"1195\" data-start=\"1112\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eYes (\u003ca title=\"Samsung 40T Spec Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2429\/4947\/files\/samsung_40T.pdf?v=1750711402\"\u003eSpec Sheet\u003c\/a\u003e) \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"sticky end-(--thread-content-margin) h-0 self-end select-none\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-end=\"1200\" data-start=\"1197\"\u003e\n\u003ch3 data-end=\"1220\" data-start=\"1202\"\u003e✅ Key Benefits\u003c\/h3\u003e\n\u003cul data-end=\"1561\" data-start=\"1221\"\u003e\n\u003cli data-end=\"1317\" data-start=\"1221\"\u003e\n\u003cp data-end=\"1317\" data-start=\"1223\"\u003e\u003cstrong data-end=\"1254\" data-start=\"1223\"\u003eConsistent High Performance\u003c\/strong\u003e: Delivers sustained 35 A discharge without thermal throttling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1393\" data-start=\"1318\"\u003e\n\u003cp data-end=\"1393\" data-start=\"1320\"\u003e\u003cstrong data-end=\"1343\" data-start=\"1320\"\u003eHigh-energy Density\u003c\/strong\u003e: Superior capacity compared to lower-drain cells.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1477\" data-start=\"1394\"\u003e\n\u003cp data-end=\"1477\" data-start=\"1396\"\u003e\u003cstrong data-end=\"1415\" data-start=\"1396\"\u003ePremium Quality\u003c\/strong\u003e: Samsung SDI manufacturing ensures reliability and longevity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1561\" data-start=\"1478\"\u003e\n\u003cp data-end=\"1561\" data-start=\"1480\"\u003e\u003cstrong data-end=\"1496\" data-start=\"1480\"\u003eSafety First\u003c\/strong\u003e: OEM cell without third-party modifications or counterfeit risk.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1566\" data-start=\"1563\"\u003e\n\u003ch3 data-end=\"1599\" data-start=\"1568\"\u003e📦 Included with Your Order\u003c\/h3\u003e\n\u003cul data-end=\"1752\" data-start=\"1600\"\u003e\n\u003cli data-end=\"1643\" data-start=\"1600\"\u003e\n\u003cp data-end=\"1643\" data-start=\"1602\"\u003eGenuine \u003cstrong data-end=\"1635\" data-start=\"1610\"\u003eSamsung SDI 40T 21700\u003c\/strong\u003e cell(s)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1705\" data-start=\"1644\"\u003e\n\u003cp data-end=\"1705\" data-start=\"1646\"\u003eAccess to the official \u003cstrong data-end=\"1678\" data-start=\"1665\"\u003edatasheet\u003c\/strong\u003e and \u003ca title=\"Spec Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2429\/4947\/files\/samsung_40T.pdf?v=1750711402\"\u003e\u003cstrong data-end=\"1705\" data-start=\"1683\"\u003espec documentation\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1752\" data-start=\"1706\"\u003e\n\u003cp data-end=\"1752\" data-start=\"1708\"\u003eSafe original packaging and optional insured shipping\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1757\" data-start=\"1754\"\u003e\n\u003ch3 data-end=\"1781\" data-start=\"1759\"\u003e👷 Recommended For\u003c\/h3\u003e\n\u003cul data-end=\"1973\" data-start=\"1782\"\u003e\n\u003cli data-end=\"1821\" data-start=\"1782\"\u003e\n\u003cp data-end=\"1821\" data-start=\"1784\"\u003eHigh-current power tools \u0026amp; e‑mobility\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1872\" data-start=\"1822\"\u003e\n\u003cp data-end=\"1872\" data-start=\"1824\"\u003eHigh-wattage LED flashlights and lighting setups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1921\" data-start=\"1873\"\u003e\n\u003cp data-end=\"1921\" data-start=\"1875\"\u003eBattery pack builders (BMS-ready, unprotected)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1973\" data-start=\"1922\"\u003e\n\u003cp data-end=\"1973\" data-start=\"1924\"\u003eAnybody needing sustained power plus long runtime\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1978\" data-start=\"1975\"\u003e\n\u003ch3 data-end=\"2001\" data-start=\"1980\"\u003e✔️ Buying Options\u003c\/h3\u003e\n\u003cul data-end=\"2204\" data-start=\"2002\"\u003e\n\u003cli data-end=\"2051\" data-start=\"2002\"\u003e\n\u003cp data-end=\"2051\" data-start=\"2004\"\u003eSingle unit purchase, or bulk wholesale pricing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2093\" data-start=\"2052\"\u003e\n\u003cp data-end=\"2093\" data-start=\"2054\"\u003eQuantity discounts (contact for quotes)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2134\" data-start=\"2094\"\u003e\n\u003cp data-end=\"2134\" data-start=\"2096\"\u003eShips via economy or express (insured)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2204\" data-start=\"2135\"\u003e\n\u003cp data-end=\"2204\" data-start=\"2137\"\u003eClear documentation is included to support compliance and traceability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2209\" data-start=\"2206\"\u003e\n\u003ch4 data-end=\"2358\" data-start=\"2211\"\u003e\n\u003cstrong data-end=\"2247\" data-start=\"2211\"\u003eGet your Samsung 40T cells today\u003c\/strong\u003e—the perfect balance of capacity and current. Add to cart to experience high-performance power with confidence.\u003c\/h4\u003e\n\u003ch3 data-end=\"2358\" data-start=\"2211\"\u003eDownloads\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2429\/4947\/files\/INR21700-40T_WM_RPE.pdf?v=1750875698\"\u003eSamsung 40T Cell Spec Sheet RPE\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"2358\" data-start=\"2211\"\u003e\n\u003cbr\u003e\u003cbr\u003e⚠ \u003cstrong data-end=\"386\" data-start=\"357\"\u003eImportant Safety Warnings\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"186\" data-end=\"575\"\u003eImproper use of lithium-ion batteries can cause \u003cstrong data-start=\"297\" data-end=\"335\"\u003efire, explosion, or serious injury\u003c\/strong\u003e. These cells are intended \u003cstrong data-start=\"362\" data-end=\"370\"\u003eonly\u003c\/strong\u003e for use in battery packs with a \u003cstrong data-start=\"403\" data-end=\"438\"\u003eBMS (Battery Management System)\u003c\/strong\u003e or \u003cstrong data-start=\"442\" data-end=\"476\"\u003eProtection Circuit Board (PCB)\u003c\/strong\u003e. \u003cstrong data-start=\"478\" data-end=\"512\"\u003eDo not use as standalone cells\u003c\/strong\u003e or in e-cigarettes, vape devices, or unprotected applications.\u003c\/p\u003e\n\u003cp data-start=\"577\" data-end=\"605\"\u003e\u003cstrong data-start=\"577\" data-end=\"603\"\u003eKey Safety Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"606\" data-end=\"1192\"\u003e\n\u003cli data-start=\"606\" data-end=\"705\"\u003e\n\u003cp data-start=\"608\" data-end=\"705\"\u003e\u003cstrong data-start=\"608\" data-end=\"639\"\u003eNever carry loose batteries\u003c\/strong\u003e in your pocket, purse, or bag — risk of short circuit and fire.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"706\" data-end=\"762\"\u003e\n\u003cp data-start=\"708\" data-end=\"762\"\u003eAlways \u003cstrong data-start=\"715\" data-end=\"738\"\u003estore and transport\u003c\/strong\u003e in a protective case.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"763\" data-end=\"855\"\u003e\n\u003cp data-start=\"765\" data-end=\"855\"\u003e\u003cstrong data-start=\"765\" data-end=\"787\"\u003eInspect before use\u003c\/strong\u003e: Do not use if damaged, leaking, bulging, or the wrapper is torn.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"856\" data-end=\"968\"\u003e\n\u003cp data-start=\"858\" data-end=\"968\"\u003e\u003cstrong data-start=\"858\" data-end=\"875\"\u003eCharge safely\u003c\/strong\u003e: Use a smart charger designed for lithium-ion cells. Never overcharge or leave unattended.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"969\" data-end=\"1061\"\u003e\n\u003cp data-start=\"971\" data-end=\"1061\"\u003e\u003cstrong data-start=\"971\" data-end=\"981\"\u003eDo not\u003c\/strong\u003e crush, puncture, modify, expose to liquid, solder directly, or short circuit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1062\" data-end=\"1192\"\u003e\n\u003cp data-start=\"1064\" data-end=\"1192\"\u003eFor thermal runaway (swelling, smoke, heat): move to a fire-safe surface and use \u003cstrong data-start=\"1145\" data-end=\"1177\"\u003eClass D extinguisher or sand\u003c\/strong\u003e — never water.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1194\" data-end=\"1449\"\u003e\u003cstrong data-start=\"1194\" data-end=\"1209\"\u003eDisclaimer:\u003c\/strong\u003e\u003cbr data-start=\"1209\" data-end=\"1212\"\u003eRechargeable Power Energy (RPE) is not responsible for misuse, improper handling, or unsafe pack assembly. Buyers and resellers accept full responsibility for safe use. Cells must be packaged individually — do \u003cstrong data-start=\"1422\" data-end=\"1429\"\u003enot\u003c\/strong\u003e sell or ship loose.\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":42348646400062,"sku":"INR21700-40T","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0648\/9289\/5294\/files\/40T_F.jpg?v=1767063072","url":"https:\/\/unitedlithium.us\/products\/samsung-40t-21700-4000mah-35a-battery","provider":"United Lithium Solutions","version":"1.0","type":"link"}