{"product_id":"lg-mj1-18650-3500mah-10a-battery-protected-button-top","title":"LG MJ1 18650 3500mAh 10A Battery - Protected Button Top","description":"\u003ch4\u003eKey Features\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e3500mAh High Capacity:\u003c\/strong\u003e Built on the original LG Chem MJ1 18650 cell, delivering 3500mAh nominal capacity and 3.6V nominal voltage for extended runtime in compatible button top devices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e10A Maximum Continuous Discharge:\u003c\/strong\u003e Supports up to 10A continuous discharge for reliable, controlled current delivery in compatible single-cell and multi-cell device applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePCB Protection Circuit:\u003c\/strong\u003e Third-party integrated protection circuit board provides overcharge, over-discharge, over-current, and short circuit protection for safe operation in compatible devices without an external BMS.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eButton Top Terminal:\u003c\/strong\u003e Positive button top configuration ensures broad compatibility with devices designed for button top 18650 cells — note that this cell is physically longer than a standard flat top unprotected 18650 battery.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOriginal LG MJ1 Cell Base:\u003c\/strong\u003e Built on the authentic LG Chem MJ1 flat top cell with button top and PCB added by a third-party manufacturer, combining genuine LG cell quality with protected button top convenience.\u003c\/li\u003e \u003c\/ul\u003e\r\n\u003ch4\u003eNote: This is a button top protected 18650 battery which is longer than a standard flat top unprotected 18650 battery.\u003c\/h4\u003e\r\n \u003ch4\u003eOverview\u003c\/h4\u003e \u003cp\u003eThis LG MJ1 18650 Protected Button Top battery pairs the original LG Chem MJ1 flat top 18650 cell with a third-party added button top terminal and PCB protection circuit, creating a protected button top cell suited for compatible devices requiring both button top format and cell-level safety protection. With a nominal capacity of 3500mAh, a nominal voltage of 3.6V, and a maximum continuous discharge of 10A, this cell delivers strong runtime and reliable performance in single-cell and multi-cell device configurations. The integrated PCB protects against overcharge, over-discharge, over-current, and short circuit conditions without the need for an external Battery Management System. It is important to note that this protected button top cell is physically longer than a standard flat top unprotected 18650 battery due to its added button top terminal and protection circuit — always verify dimensional compatibility with your device before purchase. Do not remove the protective wrap, as doing so may compromise the protection circuit.\u003c\/p\u003e \u003ch4\u003eApplications \/ Uses\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eHigh-capacity flashlights and portable lighting systems designed for protected button top 18650 cells\u003c\/li\u003e \u003cli\u003eConsumer electronics and personal devices requiring button top 18650 format with built-in cell-level protection\u003c\/li\u003e \u003cli\u003ePortable power banks and single-cell devices benefiting from PCB overcharge and over-discharge protection\u003c\/li\u003e \u003cli\u003eMedical and industrial handheld devices requiring stable, protected lithium-ion power with extended runtime\u003c\/li\u003e \u003cli\u003eReplacement cells for compatible button top 18650 devices where 3500mAh capacity and protection are both required\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eSpecifications\u003c\/h4\u003e \u003cdiv class=\"table-wrapper\"\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003eBrand:\u003c\/td\u003e\n\u003ctd\u003eLG Chem\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eModel:\u003c\/td\u003e\n\u003ctd\u003eMJ1\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eBattery Type:\u003c\/td\u003e\n\u003ctd\u003e18650 Lithium-Ion\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eNominal Capacity:\u003c\/td\u003e\n\u003ctd\u003e3500mAh\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eNominal Voltage:\u003c\/td\u003e\n\u003ctd\u003e3.6V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eMaximum Voltage:\u003c\/td\u003e\n\u003ctd\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eMax Continuous Discharge:\u003c\/td\u003e\n\u003ctd\u003e10A\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eProtected:\u003c\/td\u003e\n\u003ctd\u003eYes (PCB) — overcharge, over-discharge, over-current, short circuit\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eBattery Top:\u003c\/td\u003e\n\u003ctd\u003eButton Top\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eApprox. Dimensions:\u003c\/td\u003e\n\u003ctd\u003e23.2mm x 69.3mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eApprox. Weight:\u003c\/td\u003e\n\u003ctd\u003e48.8g\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003cp\u003eThis is a button top protected 18650 battery and is longer than a standard flat top unprotected 18650 battery. Please verify device compatibility before purchase.\u003c\/p\u003e","brand":"LG Chem","offers":[{"title":"Default Title","offer_id":67610310246710,"sku":"LG-MJ1-PRO","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/2761\/1190\/files\/LG-MJ1-PRO.jpg?v=1790721301","url":"https:\/\/18650battery.com\/products\/lg-mj1-18650-3500mah-10a-battery-protected-button-top","provider":"18650Battery","version":"1.0","type":"link"}