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EZGO Terrain 250 (2012-2016) 48V Lithium Battery Conversion Kit — Fleet Lithium

Regular price $1,95943 USD
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10-Year Warranty US-Based Support Ships From The USA 30-Day Guarantee Safe Chemistry

Upgrade Your E-Z-GO Terrain 250 to Fleet Lithium

A Terrain 250 is a jobsite vehicle, and jobsite vehicles get deep-cycled hard and charged inconsistently — the two fastest ways to ruin flooded batteries. The 51V Fleet Lithium pack tolerates partial charging, holds full output loaded, and cuts about 230 lb from the six 8V factory pack.

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 Terrain 250 2012–2016 6x 8V Matched to your tray

Which Do You Have?

This kit is for the electric 48V Terrain 250 with six 8V batteries. Gas Terrain vehicles and voltage-converted vehicles are not covered.

Will It Work With My Controller?

The Terrain 250's 250A 48V solid-state controller is a direct electrical match for the 51V Fleet pack.

Frequently Asked Questions

Will this fit my Terrain 250?

Yes, for the electric 48V six 8V build.

Can I leave it partially charged?

Yes. Lithium has no memory effect and no sulfation — partial charging does not damage the pack.

Which capacity for work duty?

105Ah minimum; 168Ah for a full loaded shift.

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.

About Fleet Lithium

Built for demanding applications. Ready for everyday use.

Fleet Lithium develops high-output LiFePO4 battery systems for golf carts, LSVs, UTVs, marine, RV, and off-grid applications. We combine serious power capability with application-specific fitment, complete conversion components, and direct technical support.

Why Fleet is in our name

Fleet Lithium was built around equipment that gets used hard and cannot afford unreliable power.

Fleet Lithium was built around equipment that gets used hard and cannot afford unreliable power. Government fleets, rental operators, farms, hunting properties, and utility vehicles were our proving ground—not the modified-cart trend.

Those demanding applications shaped our approach from the beginning: build batteries with the power, control, and durability required for heavy daily use. That same overbuilt approach now serves individual golf cart, LSV, UTV, boat, RV, and off-grid customers who simply want a system they can depend on.

More than a battery in a box

A successful lithium conversion takes more than matching voltage and amp-hours.

Battery output, controller demand, charger programming, mounting, cabling, vehicle electronics, and communication protocols all have to work together. Fleet Lithium develops complete systems around the application so customers and installers do not have to piece together a conversion and hope the components are compatible.

Depending on the application, a Fleet Lithium solution may include the battery, matched charger, mounting hardware, cables, gauge or display integration, programming, installation guidance, and direct technical support.

Power and control built into the system

Fleet Lithium’s current NexGen battery management platform is rated for 300 amps of continuous discharge and up to 800 amps of peak output. It is designed to support real controller demand without treating every short power surge as an overload.

Select Fleet Lithium systems also support features such as OEM CAN-bus integration, cold-weather charging automation, Bluetooth monitoring, and GPS or geofencing for fleet security and operational control. These capabilities are application-dependent—not included with every battery.

  • 300A continuous / 800A peak surge discharge
  • OEM CAN-bus integration on select systems
  • Cold-weather charging, Bluetooth, GPS/geofencing where applicable

The application matters as much as the voltage

Two vehicles can use the same nominal voltage and still require completely different batteries, mounting solutions, chargers, cables, programming, or controller considerations.

Fleet Lithium researches vehicle generations, battery compartments, electrical architecture, controller demand, and charging requirements to develop application-specific configurations. Where fitment or installation requirements are verified, we document them clearly. Where additional validation is still required, we do not present an assumption as a confirmed fit.

Support and Warranty

Support from people who understand the entire system

Our support does not stop at the battery terminals. We help customers work through the battery, BMS, charger, controller, vehicle wiring, programming, and installation as one connected system.

Customers have direct access to technical support, product specifications, installation information, troubleshooting resources, warranty registration, and claims assistance.

Fleet Lithium Promise Series packs are backed by a 10-year warranty.

Visit the Support Center
10 Year Promise Series warranty
USA Technical support

Built for the way you actually use it

Whether you manage a working fleet, operate equipment on a farm, hunt remote property, commute in an LSV, cruise in a golf cart, spend the day on the water, or need dependable off-grid power, Fleet Lithium is built around the application—not just the battery specification.