{"title":"LISHEN-21700","description":"\u003cdiv style=\"background: #fdf8e2; border-left: 4px solid #e0a800; padding: 14px 18px; margin-bottom: 24px; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #856404; font-size: 15px;\"\u003eFast Worldwide Shipping from China Warehouse:\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0 0; color: #664d03; font-size: 14px; line-height: 1.5;\"\u003eOrders ship securely and directly from our central manufacturing warehouse in China. For detailed country transit times, battery shipping routes, and tracking procedures, please visit our \u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" style=\"color: #0d6efd; text-decoration: underline; font-weight: 600;\"\u003eChina Warehouse Shipping Policy\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF Global Shipping Network\" style=\"max-width: 100%; height: auto; border-radius: 6px;\"\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLISHEN 21700 Series Cylindrical Lithium-Ion Bare Cell Lineup\u003c\/strong\u003e delivers high energy density, outstanding discharge flexibility, and robust cycle longevity for professional battery pack builders, e-mobility integrators, and industrial energy storage systems. Featuring Tianjin Lishen Battery industrial-grade cylindrical cells across popular models—including the high-capacity factory-fresh \u003cstrong\u003eLR2170SZ (5000mAh, 15A)\u003c\/strong\u003e, high-current powerhouse \u003cstrong\u003eLR2170LA (4000mAh, 45A)\u003c\/strong\u003e, and cost-effective \u003cstrong\u003eLR2170SD (5000mAh, 10A)\u003c\/strong\u003e—these flat-top bare cells provide stable 3.6V\/3.7V nominal platforms and low internal resistance for balanced multi-series and parallel pack construction.\u003c\/p\u003e\n\n\u003cdiv style=\"position: relative; width: 100%; padding-bottom: 56.25%; height: 0; margin: 24px 0;\"\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"DXF POWER Battery Pack Testing and Performance\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTier-1 Industrial Quality:\u003c\/strong\u003e Manufactured by Tianjin Lishen Battery with tight internal resistance sorting and consistent voltage curves across production batches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Drain \u0026amp; High-Capacity Spectrum:\u003c\/strong\u003e Select from massive 5000mAh capacity cells (LR2170SZ\/LR2170SD) for extended range, or extreme 45A high-drain cells (LR2170LA) for heavy motor and power-tool loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModern 21700 Form Factor:\u003c\/strong\u003e Precision dimensions (approx. 21.2mm diameter × 70.3mm length) offering superior volumetric energy density and better thermal dissipation than standard 18650 cells.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat Top Terminal Design:\u003c\/strong\u003e Clean, unraised flat-top positive terminals engineered specifically for manual or automated spot-welding with nickel strips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Thermal Stability:\u003c\/strong\u003e Premium electrode chemistry ensures efficient heat dissipation and robust cycle longevity under demanding duty cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications \u0026amp; Model Lineup:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e LISHEN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Format:\u003c\/strong\u003e 21700 Cylindrical Bare Cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approx. 21.2 mm (Diameter) × 70.3 mm (Length)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Terminal:\u003c\/strong\u003e Flat Top (Bare, unprotected cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V – 3.7V per cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Charge Voltage:\u003c\/strong\u003e 4.20V ± 0.05V per cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-off Voltage:\u003c\/strong\u003e 2.5V per cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePopular Models in Collection:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLR2170SZ (New):\u003c\/strong\u003e 5000mAh nominal capacity, 15A continuous discharge current, lime green wrap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLR2170SD (Reclaimed Grade-A):\u003c\/strong\u003e 5000mAh nominal capacity, 10A continuous discharge current, purple wrap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLR2170LA (Reclaimed Grade-A):\u003c\/strong\u003e 4000mAh nominal capacity, 45A high-drain continuous discharge current, lavender blue wrap.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Options:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS:\u003c\/strong\u003e Single cell option for sampling, bench testing, or single-cell replacement needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS:\u003c\/strong\u003e Entry pack for compact DIY power banks, cordless tools, and small portable modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS:\u003c\/strong\u003e Ideal quantity for building 10S2P lightweight e-scooter or 4S5P portable power stations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS:\u003c\/strong\u003e Standard volume bundle for multi-series e-bike batteries and medium energy storage systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS:\u003c\/strong\u003e Full factory case for professional pack builders, bulk fleet maintenance, and large-scale parallel battery banks with closely matched factory batch IR.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety \u0026amp; Usage Restrictions (Important Bare-Cell Notice):\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnprotected Bare Cell Warning:\u003c\/strong\u003e These are bare industrial cylindrical cells without built-in protection circuit boards (no PCM \/ PCB).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Assembly Only:\u003c\/strong\u003e Strictly intended for qualified technicians and pack assemblers who integrate an appropriate Battery Management System (BMS) with overcharge, over-discharge, over-current, and cell balancing protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNever Carry Loose Cells:\u003c\/strong\u003e Do not carry loose cells in pockets, bags, or toolboxes where contact with keys, coins, or metal items can cause catastrophic short circuits. Always store in non-conductive plastic battery cases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProhibited Consumer Uses:\u003c\/strong\u003e Not for loose consumer use in flashlights, vaping devices, or household appliances lacking dedicated cell containment and BMS protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Protocol:\u003c\/strong\u003e Charge exclusively using dedicated CC\/CV lithium-ion smart chargers (0.5C to 1C rate recommended). Never exceed 4.20V per cell and never leave charging batteries unattended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Weld Inspection:\u003c\/strong\u003e Verify equal cell voltages and inspect shrink wrap insulation prior to resistance spot-welding. Never solder directly onto cell terminals with a soldering iron.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReclaimed Cell Quality Terms:\u003c\/h3\u003e\n\u003cp\u003eFor reclaimed\/refurbished cell models (LR2170SD and LR2170LA), cells are harvested from unused factory modules, electronically tested, and sorted for Grade-A capacity and internal resistance. We offer a 3-month quality warranty on cell integrity. Builders must verify and balance all cell voltages prior to pack welding.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended Applications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eElectric Bicycles (E-Bikes), Electric Scooters, and E-Motorcycles\u003c\/li\u003e\n\u003cli\u003eHigh-Drain Cordless Power Tools, Vacuums, and Lawn Equipment\u003c\/li\u003e\n\u003cli\u003eCustom DIY Multi-Series\/Parallel Lithium Battery Packs\u003c\/li\u003e\n\u003cli\u003eOff-Grid Solar Energy Storage Systems (ESS) and UPS Backup\u003c\/li\u003e\n\u003cli\u003eRobotics, AGVs, and Portable Electronics Stations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose DXF:\u003c\/h3\u003e\n\u003cp\u003eDXF POWER delivers rigorously tested lithium-ion cylindrical cells with strict internal resistance and voltage sorting, ensuring reliable multi-cell pack balancing and secure protective packaging for worldwide delivery.\u003c\/p\u003e\n\n\u003cdiv style=\"margin-top: 30px; padding: 16px; background-color: #f8f9fa; border: 1px solid #e9ecef; border-radius: 6px; text-align: center;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; color: #212529;\"\u003eExplore DXF POWER in Action\u003c\/h4\u003e\n\u003cp style=\"margin: 0 0 12px 0; color: #6c757d; font-size: 14px;\"\u003eWatch real battery builds, capacity tests, and durability demonstrations on our official channel.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" style=\"display: inline-block; padding: 8px 18px; background-color: #cc0000; color: #ffffff; text-decoration: none; font-weight: bold; border-radius: 4px; font-size: 14px;\"\u003eSubscribe to @stevehou8316 on YouTube\u003c\/a\u003e\n\u003c\/div\u003e","products":[{"product_id":"lishen-lr2170la-4000mah-45a-reclaimed-21700-li-ion-cell-for-professional-battery-pack-assembly-1-100-pcs","title":"LISHEN LR2170LA 4000mAh 45A Reclaimed 21700 Li-ion Cell for Professional Battery Pack Assembly (1–100 PCS)","description":"\u003cdiv style=\"border-left: 3px solid #d9d9d9; padding: 14px 18px; margin-bottom: 22px;\"\u003e\n\u003cp style=\"margin: 0 0 12px; font-size: 18px; font-weight: bold; color: #1b16d8;\"\u003eGlobal Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" rel=\"noopener\" target=\"_blank\"\u003eChina warehouse shipping information\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eChoose your quantity (1, 10, 20, 50 or 100 PCS) – reclaimed LISHEN LR2170LA 4000mAh 21700 cells for qualified battery-pack builders.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width: 100%; height: auto;\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWARNING – Professional customers only.\u003c\/strong\u003e The reclaimed LISHEN LR2170LA 4000mAh 21700 lithium-ion cell is a component for professional assembly of battery packs with appropriate BMS\/PCM, insulation, housing and safety protections. The supplied product information lists 45A as the maximum current and 15A as the recommended \/ optimal continuous current; do not treat 45A as the recommended sustained draw. The cell is not a ready-to-use consumer battery.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4000mAh rated capacity:\u003c\/strong\u003e For suitable, professionally designed 21700 packs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e45A maximum current:\u003c\/strong\u003e Listed maximum; recommended \/ optimal continuous current is 15A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReclaimed cell:\u003c\/strong\u003e Cosmetic removal marks and production date may vary by delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnprotected component:\u003c\/strong\u003e Requires suitable pack-level protection and qualified assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple quantities:\u003c\/strong\u003e Select 1, 10, 20, 50 or 100 PCS.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Cell\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOriginal manufacturer:\u003c\/strong\u003e LISHEN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e LR2170LA [reclaimed]\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort name:\u003c\/strong\u003e LA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell type and size:\u003c\/strong\u003e Li-Ion, 21700\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated capacity:\u003c\/strong\u003e 4000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum current:\u003c\/strong\u003e 45A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended \/ optimal continuous current:\u003c\/strong\u003e 15A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eState of charge:\u003c\/strong\u003e Approximately 3.45V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell condition:\u003c\/strong\u003e Reclaimed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduction date:\u003c\/strong\u003e Varies depending on deliveries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 3 months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e \u003ca href=\"https:\/\/e-foton.pl\/userdata\/public\/assets\/Testy_ogniw\/lishen_LR2170LA.pdf\" rel=\"noopener\" target=\"_blank\"\u003eLR2170LA documentation\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Options\u003c\/h2\u003e\u003cp\u003eSelect 1, 10, 20, 50 or 100 cells as offered in the product options. The single-cell price applies to one cell; check the selected option for multi-cell pricing. Inspect and verify each reclaimed cell before pack assembly.\u003c\/p\u003e\u003ch2\u003e3-Month Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eThis reclaimed-cell listing states a 3-month warranty. Contact the seller for support with the order or product information.\u003c\/p\u003e\u003ch2\u003eIntended Use \u0026amp; Restrictions\u003c\/h2\u003e\u003cp\u003eIntended only for professional customers, including battery-pack manufacturers, technical service providers, system integrators and entities qualified to design, assemble and test packs built from lithium cells. Manufacturer names and model designations identify factory origin and model only; seller authorization by the manufacturer is not claimed unless expressly stated separately.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eThe cell is not a ready-to-use consumer battery and has no individual protection circuit. Integrate only into a professionally designed pack with appropriate BMS\/PCM, insulation, housing and protection against short circuit, overcharge, over-discharge and overheating.\u003c\/li\u003e\n\u003cli\u003eDo not use as a single, loose, replaceable battery in e-cigarettes\/vapes, flashlights, toys, power banks, RC devices or other consumer devices unless part of a professionally made and protected pack.\u003c\/li\u003e\n\u003cli\u003eDo not carry loose in a pocket or bag with metal objects. A terminal short circuit can cause fire, explosion, burns or property damage.\u003c\/li\u003e\n\u003cli\u003eDo not use a damaged cell, including one with voltage below documented limits, a crushed casing, corrosion or other abnormal condition.\u003c\/li\u003e\n\u003cli\u003eDo not solder directly to terminals without technology and procedure approved by a professional integrator. Follow the pack design and documentation.\u003c\/li\u003e\n\u003cli\u003eBefore assembly, inspect reclaimed cells and independently verify equal voltages of cells to be connected.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cp\u003eChoose the quantity appropriate for your professional pack-building project, then verify reclaimed cell condition, matching and protection design before use.\u003c\/p\u003e\u003chr\u003e\u003cp\u003eExplore more battery content on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" rel=\"noopener\" target=\"_blank\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"LISHEN","offers":[{"title":"1PCS LISHEN LR2170LA 4000MAH  BATTERY","offer_id":67593678422179,"sku":"LR2170LA-4000mAh-1PCS","price":23.0,"currency_code":"USD","in_stock":true},{"title":"10PCS LISHEN LR2170LA 4000MAH  BATTERY","offer_id":67593678454947,"sku":"LR2170LA-4000mAh-10PCS","price":70.08,"currency_code":"USD","in_stock":true},{"title":"20PCS LISHEN LR2170LA 4000MAH  BATTERY","offer_id":67593678487715,"sku":"LR2170LA-4000mAh-20PCS","price":122.4,"currency_code":"USD","in_stock":true},{"title":"50PCS LISHEN LR2170LA 4000MAH  BATTERY","offer_id":67593678520483,"sku":"LR2170LA-4000mAh-50PCS","price":279.36,"currency_code":"USD","in_stock":true},{"title":"100PCS LISHEN LR2170LA 4000MAH  BATTERY","offer_id":67593678553251,"sku":"LR2170LA-4000mAh-100PCS","price":540.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/4_4c40160e-0037-4462-ad8f-1e7d8471a109.png?v=1790918412"},{"product_id":"lishen-lr2170sd-5000mah-10a-reclaimed-21700-li-ion-cell-for-professional-battery-pack-assembly-1-100-pcs","title":"LISHEN LR2170SD 5000mAh 10A Reclaimed 21700 Li-ion Cell for Professional Battery Pack Assembly (1–100 PCS)","description":"\u003cdiv style=\"border-left: 3px solid #d9d9d9; padding: 14px 18px; margin-bottom: 22px;\"\u003e\n\u003cp style=\"margin: 0 0 12px; font-size: 18px; font-weight: bold; color: #1b16d8;\"\u003eGlobal Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" rel=\"noopener\" target=\"_blank\"\u003eChina warehouse shipping information\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eChoose 1, 10, 20, 50 or 100 PCS – reclaimed LISHEN LR2170SD 5000mAh 21700 lithium-ion cells for professional battery-pack assembly.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width: 100%; height: auto;\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWARNING – For professional customers only.\u003c\/strong\u003e The LISHEN LR2170SD is a reclaimed, unprotected 21700 lithium-ion cell rated at 5000mAh. It is a component for professionally designed packs with suitable BMS\/PCM, insulation, housing and safety protection. The supplied product information lists \u003cstrong\u003e10A maximum current\u003c\/strong\u003e and \u003cstrong\u003e5A recommended \/ optimal continuous current\u003c\/strong\u003e; 10A must not be presented as the recommended sustained draw. This cell is not a ready-to-use consumer battery.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5000mAh rated capacity:\u003c\/strong\u003e For compatible high-capacity professional 21700 pack designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10A maximum current:\u003c\/strong\u003e With 5A recommended \/ optimal continuous current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReclaimed condition:\u003c\/strong\u003e Minor cosmetic removal marks and production dates may vary by delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnprotected cell:\u003c\/strong\u003e Requires professionally designed pack-level protection and inspection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible quantities:\u003c\/strong\u003e Choose 1, 10, 20, 50 or 100 PCS for qualified pack-building work.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Cell\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOriginal manufacturer:\u003c\/strong\u003e LISHEN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e LR2170SD [reclaimed]\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort name:\u003c\/strong\u003e SD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType and size:\u003c\/strong\u003e Li-Ion, 21700\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated capacity:\u003c\/strong\u003e 5000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum current:\u003c\/strong\u003e 10A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended \/ optimal continuous current:\u003c\/strong\u003e 5A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eState of charge:\u003c\/strong\u003e Approximately 3.45V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell condition:\u003c\/strong\u003e Reclaimed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduction date:\u003c\/strong\u003e Varies depending on deliveries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 3 months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e \u003ca href=\"https:\/\/e-foton.pl\/userdata\/public\/assets\/Testy_ogniw\/lishen_LR2170SD.pdf\" target=\"_blank\" rel=\"noopener\"\u003eLISHEN LR2170SD documentation\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cp\u003eLISHEN LR2170SD cells in the selected quantity, subject to the product option chosen at checkout. No additional accessories are specified.\u003c\/p\u003e\u003ch2\u003eChoose Your Quantity\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS:\u003c\/strong\u003e One cell for qualified inspection or professional pack work; the single-cell option price applies to one cell.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS:\u003c\/strong\u003e Small-batch professional pack assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS:\u003c\/strong\u003e Multi-cell protected pack designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS:\u003c\/strong\u003e Workshop-scale integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS:\u003c\/strong\u003e Volume assembly by qualified builders.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e3-Month Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eThe supplied reclaimed-cell information states a 3-month warranty. Contact the seller with order or product questions.\u003c\/p\u003e\u003ch2\u003eIntended Use \u0026amp; Restrictions\u003c\/h2\u003e\u003cp\u003eFor professional battery-pack manufacturers, technical service providers, system integrators and other qualified entities able to design, assemble and test lithium-cell packs. Manufacturer names and model designations identify factory origin and model only; seller authorization is not claimed unless stated separately.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNot a ready-to-use consumer battery; it has no individual protection circuit. Use only in a professionally designed pack with appropriate BMS\/PCM, insulation, housing, and protection against short circuit, overcharge, over-discharge and overheating.\u003c\/li\u003e\n\u003cli\u003eDo not use as a loose replaceable cell in e-cigarettes, flashlights, toys, power banks, RC devices or other consumer devices unless integrated into a professionally made and protected pack.\u003c\/li\u003e\n\u003cli\u003eNever carry loose in a pocket or bag with metal objects. Short circuits can cause fire, explosion, burns or property damage.\u003c\/li\u003e\n\u003cli\u003eReject cells with abnormal voltage, damaged casing, corrosion or other abnormal conditions. Verify equal voltages before connecting reclaimed cells.\u003c\/li\u003e\n\u003cli\u003eDo not solder directly to terminals without an assembly procedure approved by a professional integrator. Follow the pack design and cell documentation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cp\u003eSelect the quantity appropriate for your professional project, and inspect, match and protect every reclaimed cell before assembly.\u003c\/p\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eQualified pack builders and integrators designing protected 21700 battery packs whose current requirements are compatible with the cell rating. Not for loose or unprotected consumer-device use.\u003c\/p\u003e\u003chr\u003e\u003cp\u003eExplore battery content on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" rel=\"noopener\" target=\"_blank\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"LISHEN","offers":[{"title":"1PCS LISHEN LR2170SD 5000MAH  BATTERY","offer_id":67593681436835,"sku":"LR2170SD-5000mAh-1PCS","price":23.85,"currency_code":"USD","in_stock":true},{"title":"10PCS LISHEN LR2170SD 5000MAH  BATTERY","offer_id":67593681469603,"sku":"LR2170SD-5000mAh-10PCS","price":78.6,"currency_code":"USD","in_stock":true},{"title":"20PCS  LISHEN LR2170SD 5000MAH  BATTERY","offer_id":67593681502371,"sku":"LR2170SD-5000mAh-20PCS","price":139.44,"currency_code":"USD","in_stock":true},{"title":"50PCS  LISHEN LR2170SD 5000MAH  BATTERY","offer_id":67593681535139,"sku":"LR2170SD-5000mAh-50PCS","price":321.95,"currency_code":"USD","in_stock":true},{"title":"100PCS  LISHEN LR2170SD 5000MAH  BATTERY","offer_id":67593681567907,"sku":"LR2170SD-5000mAh-100PCS","price":626.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/8_e1955e1c-e078-43f7-86ce-9b7adcd5fcc3.png?v=1790918884"},{"product_id":"lishen-lr2170sz-5000mah-15a-21700-li-ion-cell-for-protected-energy-storage-outdoor-power-long-runtime-packs-1-100-pcs","title":"LISHEN LR2170SZ 5000mAh 15A 21700 Li-ion Cell for Protected Energy Storage, Outdoor Power \u0026 Long-Runtime Packs (1–100 PCS)","description":"\u003cdiv style=\"border-left: 3px solid #d9d9d9; padding: 14px 18px; margin-bottom: 22px;\"\u003e\n\u003cp style=\"margin: 0 0 12px; font-size: 18px; font-weight: bold; color: #1b16d8;\"\u003eGlobal Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" rel=\"noopener\" target=\"_blank\"\u003eChina warehouse shipping information\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eSelect 1, 10, 20, 50 or 100 PCS – LISHEN LR2170SZ 5000mAh nominal 21700 cells for professionally protected long-runtime battery packs.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width: 100%; height: auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eLISHEN LR2170SZ 21700 lithium-ion cell\u003c\/strong\u003e is a high-capacity option for professionally built packs where runtime matters more than extreme discharge bursts. The supplied specification image lists \u003cstrong\u003e5000mAh nominal\u003c\/strong\u003e and \u003cstrong\u003e4900mAh rated\u003c\/strong\u003e capacity at 0.2C, 3.6V nominal voltage and \u003cstrong\u003e15A maximum discharge\u003c\/strong\u003e. It is better suited to compatible protected energy-storage, outdoor-power and moderate-current designs than high-current racing RC applications.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-capacity 21700 format:\u003c\/strong\u003e 5000mAh nominal \/ 4900mAh rated at 0.2C, as listed in the supplied specification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15A maximum discharge:\u003c\/strong\u003e Intended for loads within the cell and pack design limits, not ultra-high-drain racing builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.6V nominal voltage:\u003c\/strong\u003e Charge limit 4.2V; discharge limit 2.5V as listed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC internal resistance:\u003c\/strong\u003e 14mΩ typical in the supplied specification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-runtime focus:\u003c\/strong\u003e For appropriate protected portable-power and storage assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Cell\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e LISHEN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e LR2170SZ (21SZ in supplied specification)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell format:\u003c\/strong\u003e 21700 rechargeable lithium-ion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal capacity at 0.2C:\u003c\/strong\u003e 5000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated capacity at 0.2C:\u003c\/strong\u003e 4900mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal voltage:\u003c\/strong\u003e 3.6V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge voltage limit:\u003c\/strong\u003e 4.2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge voltage limit:\u003c\/strong\u003e 2.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard charge current:\u003c\/strong\u003e 1A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge current used for cycle test:\u003c\/strong\u003e 2.5A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge current used for cycle test:\u003c\/strong\u003e 5A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum discharge current:\u003c\/strong\u003e 15A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC internal resistance:\u003c\/strong\u003e 14mΩ typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge temperature, cell surface:\u003c\/strong\u003e 0°C to 50°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge temperature, cell surface:\u003c\/strong\u003e −20°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCycle-test result:\u003c\/strong\u003e 80% capacity at 800 cycles under the listed 2.5A charge \/ 5A discharge, 2.75–4.2V test conditions; actual life depends on use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 70g typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGravimetric energy density at 0.2C:\u003c\/strong\u003e 257Wh\/kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolumetric energy density at 0.2C:\u003c\/strong\u003e 724Wh\/L\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Options\u003c\/h2\u003e\u003cp\u003eSelect 1, 10, 20, 50 or 100 cells according to the chosen product option. Verify the selected option and pricing before checkout.\u003c\/p\u003e\u003ch2\u003eIntended Applications\u003c\/h2\u003e\u003cp\u003eFor qualified integrators building protected, moderate-current battery packs for portable energy storage, outdoor power supplies, long-runtime electronics and compatible lower-drain model applications. Not recommended for racing RC vehicles or aircraft that demand high burst currents.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse only with compatible charging controls, cell protection, insulation and a professionally designed pack. Do not use a loose unprotected cell in a consumer device.\u003c\/li\u003e\n\u003cli\u003eDo not exceed the listed 4.2V charge limit, discharge below 2.5V, or exceed the 15A maximum discharge rating.\u003c\/li\u003e\n\u003cli\u003eInspect the wrapper and terminals; never use damaged cells or carry cells loose with metal objects.\u003c\/li\u003e\n\u003cli\u003eFollow the pack design and verify cell condition and voltage balance before connecting multiple cells.\u003c\/li\u003e\n\u003cli\u003eFor extended storage, store partially charged in a cool, dry location and follow the manufacturer's detailed handling instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cp\u003eSelect a quantity that suits your professionally protected long-runtime pack project, and verify the cell specifications against your equipment before assembly.\u003c\/p\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eProtected portable-power and energy-storage packs where 5000mAh nominal capacity is more important than extreme discharge current.\u003c\/p\u003e\u003chr\u003e\u003cp\u003eExplore battery content on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" rel=\"noopener\" target=\"_blank\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"LISHEN","offers":[{"title":"1PCS LISHEN LR2170SZ 5000MAH  BATTERY","offer_id":67593682780323,"sku":"LR2170SZ-5000mAh-1PCS","price":23.36,"currency_code":"USD","in_stock":true},{"title":"10PCS LISHEN LR2170SZ 5000MAH  BATTERY","offer_id":67593682813091,"sku":"LR2170SZ-5000mAh-10PCS","price":73.73,"currency_code":"USD","in_stock":true},{"title":"20PCS  LISHEN LR2170SZ 5000MAH  BATTERY","offer_id":67593682845859,"sku":"LR2170SZ-5000mAh-20PCS","price":129.7,"currency_code":"USD","in_stock":true},{"title":"50PCS  LISHEN LR2170SZ 5000MAH  BATTERY","offer_id":67593682878627,"sku":"LR2170SZ-5000mAh-50PCS","price":297.62,"currency_code":"USD","in_stock":true},{"title":"100PCS  LISHEN LR2170SZ 5000MAH  BATTERY","offer_id":67593682911395,"sku":"LR2170SZ-5000mAh-100PCS","price":577.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/7_e3658f60-4a81-41db-80ce-5cbfb68dee3f.png?v=1790919410"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/collections\/7_e3658f60-4a81-41db-80ce-5cbfb68dee3f.png?v=1794091564","url":"https:\/\/dxf-hobby.store\/pt\/collections\/lishen-21700.oembed","provider":"DXF POWER","version":"1.0","type":"link"}