{"product_id":"akja-72v-21700-lithium-ebike-battery-20ah-50ah-3000w","title":"72V 20‑50AH 18650 Battery Pack 40AH BMS Protection","description":"\u003ch1\u003eAKJA High-Power 72V 21700 Lithium-Ion Battery Series –\u003c\/h1\u003e\n\u003ch2\u003eExtended Capacity Options (20Ah, 30Ah, 40Ah \u0026amp; 50Ah) Engineered for 500W to 3000W Electric Motorcycles, Scooters \u0026amp; Fat Tire E-Bikes (Integrated 40A\/45A Smart BMS, Peak 84V Output \u0026amp; Complimentary Universal 110V–220V Charger Included)\u003c\/h2\u003e\n\u003cp\u003eUnleash smooth, high-torque acceleration and extended driving range with the \u003cb\u003eAKJA 72V High-Power 21700 Lithium Battery Series\u003c\/b\u003e. Built using premium high-density \u003cb\u003e21700 cylindrical lithium-ion cells\u003c\/b\u003e, this battery pack offers superior energy density, low internal resistance, and enhanced thermal endurance over traditional 18650 configurations.\u003c\/p\u003e\n\u003cp\u003eFormulated to handle continuous high-amperage current for \u003cb\u003e500W to 3000W motor systems\u003c\/b\u003e, the AKJA 72V series maintains steady voltage retention under heavy load without thermal cutoffs. Housed in a compact enclosure (\u003cspan class=\"math-inline\"\u003e$265 \\times 180 \\times 150\\text{ mm}$\u003c\/span\u003e) weighing between \u003cspan class=\"math-inline\"\u003e$4\\text{ and }9\\text{ kg}$\u003c\/span\u003e, each pack is governed by an integrated \u003cb\u003eSmart BMS\u003c\/b\u003e and comes complete with a \u003cb\u003ecomplimentary universal charger set\u003c\/b\u003e.\u003c\/p\u003e\n\u003ch3\u003e⚠️ System Compatibility, Plug \u0026amp; Charger Selection Notice\u003c\/h3\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cb\u003eIMPORTANT SELECTION \u0026amp; CHARGING GUIDELINES:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eNominal 72V DC Architecture:\u003c\/b\u003e Charges to an \u003cb\u003e84V Maximum Peak Cut-Off\u003c\/b\u003e with a \u003cb\u003e35V Discharge Cut-Off\u003c\/b\u003e. Ensure your motor controller operates within standard 72V DC range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMotor Power Compatibility:\u003c\/b\u003e Safely feeds high-demand mid-drive and hub motor controllers rated from \u003cb\u003e500W up to 3000W\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCurrent Output Ratings:\u003c\/b\u003e Rated for \u003cb\u003e45A discharge\u003c\/b\u003e, \u003cb\u003e30A maximum continuous output\u003c\/b\u003e, and a \u003cb\u003e60A instantaneous peak burst\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eComplimentary Charger \u0026amp; Plug Customization:\u003c\/b\u003e Ships by default with a standard 220V EU plug charger. \u003cb\u003eIf you require a US 110V AC plug or custom discharge connectors (XT60, XT90, Anderson), please specify your preference in the order notes at checkout!\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003ch3\u003e🚀 Key High-Performance Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAdvanced 21700 Cell Architecture:\u003c\/b\u003e High-density 21700 lithium cell matrix delivers long cycle life and minimal voltage drop under acceleration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSupports Motors Up to 3000W:\u003c\/b\u003e Handles steep inclines, heavy loads, and quick acceleration bursts without triggering protection trips.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIntegrated Smart BMS Protection:\u003c\/b\u003e Protects cells against overcharging, deep discharge, over-current spikes, thermal limits, and short circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCompact Physical Footprint:\u003c\/b\u003e Measuring \u003cspan class=\"math-inline\"\u003e$265 \\times 180 \\times 150\\text{ mm}$\u003c\/span\u003e, this geometry fits easily into cargo boxes, frame compartments, or under-seat bays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIncluded Universal Fast Charger Set:\u003c\/b\u003e Every battery ships with a matching CC\/CV smart charger featuring automatic full-charge shut-off.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📊 Technical Specifications Matrix\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Parameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAKJA 72V Battery Series Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eBrand Name\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eAKJA\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eCell Type \/ Chemistry\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eHigh-Density 21700 Lithium-Ion (Li-Ion)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eNominal System Voltage\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e72V DC\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePeak Charge Voltage\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e84V DC\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eDischarge Cut-Off Voltage\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e35V DC\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eCapacity Options\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e20Ah, 30Ah, 40Ah, 50Ah\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eContinuous Discharge Current\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e30A Continuous \/ 45A Rated\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePeak Instantaneous Burst\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e60A Maximum Burst\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eMotor Wattage Support\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e500W to 3000W Motors\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePhysical Dimensions (\u003cspan class=\"math-inline\"\u003e$L \\times W \\times H$\u003c\/span\u003e)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e\u003cspan class=\"math-inline\"\u003e$265 \\times 180 \\times 150\\text{ mm}$\u003c\/span\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eWeight Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eApprox. 4.0 kg – 9.0 kg (Depends on capacity)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eOperating Charge Temp\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e\u003cspan class=\"math-inline\"\u003e$0^\\circ\\text{C}$\u003c\/span\u003e to \u003cspan class=\"math-inline\"\u003e$55^\\circ\\text{C}$\u003c\/span\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch1\u003e\u003cspan style=\"font-family: 宋体; font-size: 12pt;\"\u003e \u003c\/span\u003e\u003c\/h1\u003e\n\u003ch3\u003e📋 Ideal Applications\u003c\/h3\u003e\n\u003cp\u003eThe AKJA 72V 21700 Lithium Series is engineered for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e500W to 3000W Electric Motorcycles, Scooters, and City Mopeds\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFat Tire Off-Road E-Bikes and High-Speed Commuter Hybrids\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCommercial Delivery Trikes, Cargo Bicycles \u0026amp; Marine Trolling Motors\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 Package Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e1 x AKJA 72V 21700 Lithium-Ion Battery Pack (Selected Ah Capacity)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Complimentary Smart CC\/CV Battery Charger (EU default; US 110V option available)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Power Discharge Connection Harness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003ePower your motorcycle or custom e-bike build with high-capacity 72V 21700 power. Select your capacity and charger options above, click Add to Cart, and order today!\u003c\/b\u003e\u003c\/p\u003e\n\u003ch1\u003e\n\u003cspan style=\"font-family: 宋体; font-size: 12pt;\"\u003e\u003c\/span\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0c5043165f5b432aa62b1a821d238d41n.jpg\" style=\"font-family: 宋体; font-size: 12pt;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S85574788cb1c48b7afe8c04bc755f014N.jpg\" style=\"font-family: 宋体; font-size: 12pt;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0f7e873d96e84eabbcf62df2078f7985s.jpg\" style=\"font-family: 宋体; font-size: 12pt;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3befd091e20f45859a293585d7e27239b.jpg\" style=\"font-family: 宋体; font-size: 12pt;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3babd5ce95b24bb19f1ef3ab35153f04a.jpg\" style=\"font-family: 宋体; font-size: 12pt;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sed5c1d04c7bc47e2b94757cc6ab92d8bK.jpg\" style=\"font-family: 宋体; font-size: 12pt;\"\u003e\n\u003c\/h1\u003e","brand":"Ebike Power Network","offers":[{"title":"72V20AH","offer_id":47511177986219,"sku":"14:175#72V20AH","price":581.62,"currency_code":"USD","in_stock":true},{"title":"72V30AH","offer_id":47511178018987,"sku":"14:496#72V30AH","price":596.41,"currency_code":"USD","in_stock":true},{"title":"72V40AH","offer_id":47511178051755,"sku":"14:691#72V40AH","price":647.24,"currency_code":"USD","in_stock":true},{"title":"72V50AH","offer_id":47511178084523,"sku":"14:771#72V50AH","price":662.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/2649\/7451\/files\/S85574788cb1c48b7afe8c04bc755f014N.webp?v=1785174735","url":"https:\/\/chargemyebike.com\/products\/akja-72v-21700-lithium-ebike-battery-20ah-50ah-3000w","provider":"Ebike Power Network","version":"1.0","type":"link"}