Upgrade Your E-Z-GO MPT 800 to Fleet LithiumAn MPT 800 earns its keep hauling tools and material, and the six 8V flooded pack is the part that quits first — usually mid-shift, usually loaded. A 51V Fleet Lithium pack holds full torque to the end of the charge, drops roughly 230 lb off the payload budget, and eliminates the watering routine that never actually gets done on a work vehicle.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 MPT 800 2011–2012 6x 8V Matched to your tray Which Do You Have?This kit is for the 48V MPT 800 with six 8V batteries. Earlier 36V MPT 800 vehicles are not covered.Will It Work With My Controller?The MPT 800's Curtis 1206HB 48V SepEx controller runs the 51V Fleet pack directly. No reprogramming.Frequently Asked QuestionsWill this fit my MPT 800?Yes, for the 2011-2012 48V six 8V generation.Does it fit a 36V MPT 800?No — that is an earlier system voltage.Which capacity for work duty?105Ah minimum. Choose 168Ah or 210Ah if the vehicle runs a full shift loaded.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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