{"product_id":"ezgo-express-s4-2020-2022-72v-fleet-lithium-conversion-kit","title":"EZGO Express S4 (2020-2022) 72V Lithium Battery Conversion Kit — Fleet Lithium","description":"\u003ch2\u003eUpgrade Your E-Z-GO Express S4 to Fleet Lithium\u003c\/h2\u003e\u003cp\u003eThe 72V Express S4 hauls four people, and six 12V flooded batteries are the reason it feels heavy doing it. Swap to one 76.8V Fleet Lithium pack and you drop roughly 250 lb, keep full power under a full load, and recharge between runs instead of overnight.\u003c\/p\u003e\u003ch3\u003eChoose Your Capacity\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003cth\u003eRange*\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e76.8V 105Ah\u003c\/td\u003e\n\u003ctd\u003eUp to 50 mi\u003c\/td\u003e\n\u003ctd\u003eDaily driving\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e76.8V 168Ah\u003c\/td\u003e\n\u003ctd\u003eUp to 75 mi\u003c\/td\u003e\n\u003ctd\u003eAll-day use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e76.8V NexGen Fleet Lithium LiFePO4 Battery (selected capacity)\u003c\/li\u003e\n\u003cli\u003eCH8713 — 87.6V 13A LiFePO4 Smart Charger\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBR4480\u003c\/strong\u003e — Bracket Kit - E-Z-GO Express S4 \/ S6\u003c\/li\u003e\n\u003cli\u003eAC0219 — AC Power Connector\u003c\/li\u003e\n\u003cli\u003eCable Set\u003c\/li\u003e\n\u003cli\u003eDigital State-of-Charge Gauge\u003c\/li\u003e\n\u003cli\u003eAll mounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Specs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e300A NexGen BMS with 800A peak surge\u003c\/li\u003e\n\u003cli\u003ePatent-pending fire suppression system\u003c\/li\u003e\n\u003cli\u003eBuilt-in cold-weather heater — activates automatically below 32°F (standard, not an add-on)\u003c\/li\u003e\n\u003cli\u003eBluetooth monitoring — voltage, temp and cycle count from your phone\u003c\/li\u003e\n\u003cli\u003e10-year warranty — designed and assembled in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment Guide\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOEM Model\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eFactory Battery Tray\u003c\/th\u003e\n\u003cth\u003eBracket Shipped\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE-Z-GO Express S4\u003c\/td\u003e\n\u003ctd\u003e2020–2022\u003c\/td\u003e\n\u003ctd\u003e6x 12V\u003c\/td\u003e\n\u003ctd\u003eBR4480\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhich Do You Have?\u003c\/h3\u003e\u003cp\u003eConfirm your S4 is the 72V six 12V build before ordering. The 48V S4 uses the same BR4480 bracket but a different pack and charger.\u003c\/p\u003e\u003ch3\u003eWill It Work With My Controller?\u003c\/h3\u003e\u003cp\u003eThe factory 350A 72V AC controller is a direct electrical match for the 76.8V Fleet pack. Nothing needs reprogramming.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eWill this fit my Express S4?\u003c\/h4\u003e\u003cp\u003eYes, for the 72V six 12V lead-acid build. BR4480 is the same bracket E-Z-GO S4 owners already use.\u003c\/p\u003e\u003ch4\u003eDoes it fit the 48V S4?\u003c\/h4\u003e\u003cp\u003eNo — order the 48V Express S4 kit.\u003c\/p\u003e\u003ch4\u003eDoes it fit a factory ELiTE lithium S4?\u003c\/h4\u003e\u003cp\u003eNo.\u003c\/p\u003e\u003ch4\u003eHow long does installation take?\u003c\/h4\u003e\u003cp\u003e30–60 minutes with basic hand tools.\u003c\/p\u003e\u003ch4\u003eDoes it work in cold weather?\u003c\/h4\u003e\u003cp\u003eYes. The built-in heater activates automatically below 32°F — standard on every pack.\u003c\/p\u003e\u003cp\u003e\u003cem\u003e*Range estimates are maximums under ideal conditions (flat terrain, single rider, 12–15 mph, 70°F). Actual range varies with terrain, weight, speed, and temperature.\u003c\/em\u003e\u003c\/p\u003e","brand":"Fleet Lithium","offers":[{"title":"76.8V 105Ah","offer_id":54579084362003,"sku":"EZESH-76105","price":3402.0,"currency_code":"USD","in_stock":true},{"title":"76.8V 168Ah","offer_id":54579084394771,"sku":"EZESH-76168","price":4487.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0855\/5534\/7731\/files\/ezgo-express-s4-2020-2022-72v-105ah-battery-bundle.png?v=1787048453","url":"https:\/\/fleetlithium.com\/products\/ezgo-express-s4-2020-2022-72v-fleet-lithium-conversion-kit","provider":"Fleet Lithium - High Performance Lithium Batteries","version":"1.0","type":"link"}