Upgrade Your E-Z-GO ST Sport 2+2 to Fleet LithiumThe late ST Sport 2+2 moved to 48V and six 8V batteries — better than the 36V cars, but still about 350 lb of lead that fades under a full load. A 51V Fleet Lithium pack drops roughly 230 lb and keeps four passengers moving at full speed for the whole shift.Choose Your Capacity Capacity Range* Best For 51V 65Ah Up to 27 mi Stock carts only 51V 105Ah Up to 50 mi Daily driving 51V 168Ah Up to 75 mi All-day use 51V 210Ah Up to 90 mi Max range, fleet use 65Ah is for stock motors and controllers only. If your cart is lifted, loaded, or running an upgraded motor or controller, start at 105Ah.What's Included 51V NexGen Fleet Lithium LiFePO4 Battery (selected capacity) CH5618 — 58.4V 18A LiFePO4 Smart Charger Vehicle-specific mounting bracket kit — matched to your cart's factory battery tray AC0219 — AC Power Connector Cable Set Digital State-of-Charge Gauge All mounting hardware Key Specs 300A NexGen BMS with 800A peak surge Patent-pending fire suppression system Built-in cold-weather heater — activates automatically below 32°F (standard, not an add-on) Bluetooth monitoring — voltage, temp and cycle count from your phone 10-year warranty — designed and assembled in the USA Fitment Guide OEM Model Years Factory Battery Tray Bracket Shipped E-Z-GO ST Sport 2+2 2011–2012 6x 8V Matched to your tray Which Do You Have?This kit is for the 48V ST Sport 2+2 with six 8V batteries. The 2004-2007 36V cars use the 36V kit.Will It Work With My Controller?The 48V SepEx DC controller in these vehicles runs the 51V Fleet pack directly, with no reprogramming.Frequently Asked QuestionsWill this fit my ST Sport 2+2?Yes, for the 2011-2012 48V six 8V build.Mine is a 2006 — same kit?No. That is the 36V generation and needs the 36V kit.Which capacity?105Ah for typical use; 168Ah for all-day passenger duty.How long does installation take?30–60 minutes with basic hand tools.Does it work in cold weather?Yes. The built-in heater activates automatically below 32°F — standard on every pack.*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.
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