{"product_id":"7-4v-4400mah-rechargeable-lithium-ion-battery-pack-2s2p-imr-18650-li-ion-nmc","title":"3.7V 4400mAh Rechargeable Lithium-Ion Battery Pack (2S2P IMR 18650) – Li-ion NMC","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.7V 4400mAh Rechargeable Lithium-Ion Battery Pack\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-performance rechargeable battery designed for applications that require reliable power and extended operating time. Built using premium \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIMR 18650 Lithium-Ion NMC cells\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e in a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1S2P configuration\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this battery pack delivers a nominal voltage of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.7V\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e with a high capacity of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4400mAh\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, making it ideal for portable electronics, IoT devices, robotics, DIY projects, LED lighting, and backup power applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eManufactured with spot-welded nickel strips and insulated output leads, the battery pack offers stable performance, excellent energy density, low self-discharge, and a long service life. Its compact design allows for easy integration into custom battery-powered projects while providing dependable and consistent power output.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cspan\u003eHigh-capacity \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4400mAh\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e rechargeable Lithium-Ion battery pack\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e3.7V nominal output\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e (4.2V fully charged)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBuilt using premium \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIMR 18650 Li-ion NMC cells\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e1S2P cell configuration\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for increased capacity\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh energy density with lightweight construction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStable discharge performance and long cycle life\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory spot-welded nickel strip connections\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePre-attached wires for easy installation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLow self-discharge for longer storage life\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for DIY, industrial, and embedded electronics projects\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eIoT and wireless sensor devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eArduino, ESP32, ESP8266, and Raspberry Pi projects\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRobotics and automation systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePortable electronic equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLED lighting solutions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGPS trackers and monitoring devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMedical and diagnostic instruments\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBattery-powered DIY projects\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBackup power and emergency systems\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"PDq2pG_selectionAnchorContainer\" data-end=\"18\" data-start=\"0\" data-section-id=\"1yl5694\"\u003eSpecifications\u003cspan class=\"PDq2pG_selectionAnchor\" aria-hidden=\"true\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"691\" data-start=\"20\"\u003e\n\u003cli data-end=\"72\" data-start=\"20\" data-section-id=\"2p1789\"\u003e\n\u003cstrong data-end=\"44\" data-start=\"22\"\u003eBattery Chemistry:\u003c\/strong\u003e Lithium-Ion NMC (IMR 18650)\u003c\/li\u003e\n\u003cli data-end=\"103\" data-start=\"73\" data-section-id=\"mlk3b8\"\u003e\n\u003cstrong data-end=\"98\" data-start=\"75\"\u003eCell Configuration:\u003c\/strong\u003e 1S2P\u003c\/li\u003e\n\u003cli data-end=\"131\" data-start=\"104\" data-section-id=\"qkkj62\"\u003e\n\u003cstrong data-end=\"126\" data-start=\"106\"\u003eNominal Voltage:\u003c\/strong\u003e 3.7V\u003c\/li\u003e\n\u003cli data-end=\"165\" data-start=\"132\" data-section-id=\"8oqx5m\"\u003e\n\u003cstrong data-end=\"160\" data-start=\"134\"\u003eFully Charged Voltage:\u003c\/strong\u003e 4.2V\u003c\/li\u003e\n\u003cli data-end=\"197\" data-start=\"166\" data-section-id=\"gnne0f\"\u003e\n\u003cstrong data-end=\"189\" data-start=\"168\"\u003eBattery Capacity:\u003c\/strong\u003e 4400mAh\u003c\/li\u003e\n\u003cli data-end=\"255\" data-start=\"198\" data-section-id=\"cexm2n\"\u003e\n\u003cstrong data-end=\"214\" data-start=\"200\"\u003eCell Type:\u003c\/strong\u003e IMR 18650 Rechargeable Lithium-Ion Cells\u003c\/li\u003e\n\u003cli data-end=\"279\" data-start=\"256\" data-section-id=\"h768ii\"\u003e\n\u003cstrong data-end=\"275\" data-start=\"258\"\u003eRechargeable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-end=\"323\" data-start=\"280\" data-section-id=\"fzz4tg\"\u003e\n\u003cstrong data-end=\"304\" data-start=\"282\"\u003eOutput Connection:\u003c\/strong\u003e Pre-attached Leads\u003c\/li\u003e\n\u003cli data-end=\"377\" data-start=\"324\" data-section-id=\"1cusajl\"\u003e\n\u003cstrong data-end=\"352\" data-start=\"326\"\u003eOperating Temperature:\u003c\/strong\u003e -20°C to +60°C (Typical)\u003c\/li\u003e\n\u003cli data-end=\"483\" data-start=\"378\" data-section-id=\"df3uxw\"\u003e\n\u003cstrong data-end=\"395\" data-start=\"380\"\u003eCycle Life:\u003c\/strong\u003e Up to 500 charge\/discharge cycles (typical, depending on usage and charging conditions)\u003c\/li\u003e\n\u003cli data-end=\"547\" data-start=\"484\" data-section-id=\"cqulod\"\u003e\n\u003cstrong data-end=\"509\" data-start=\"486\"\u003eProtection Circuit:\u003c\/strong\u003e Optional (depends on product variant)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Anu Electronics","offers":[{"title":"Default Title","offer_id":47669046050993,"sku":null,"price":349.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/3606\/2897\/files\/2_4f004487-f587-4cc7-be98-43a34a797cde.png?v=1783348728","url":"https:\/\/anuelectronics.com\/products\/7-4v-4400mah-rechargeable-lithium-ion-battery-pack-2s2p-imr-18650-li-ion-nmc","provider":"Anu Electronics","version":"1.0","type":"link"}