EZGO Workhorse 800 (2001-2003) 36V Lithium Battery Conversion Kit — Fleet Lithium
EZGO Workhorse 800 (2001-2003) 36V Lithium Battery Conversion Kit — Fleet Lithium - 38.4V 105Ahis backordered and will ship as soon as it is back in stock.
10-Year Warranty / 5,000+ Cycles
10-Year Warranty / 5,000+ Cycles
Built for the long haul. Every Promise-series battery is backed by a 10-year manufacturer's warranty and rated for 5,000+ cycles at 80% depth of discharge. View full warranty details.
Product Highlights
Product Highlights
EZGO Workhorse 800 (2001-2003) 36V Lithium Battery Conversion Kit —...
Upgrade Your E-Z-GO Workhorse 800 to Fleet Lithium
The Workhorse 800 is a maintenance vehicle, which means it gets deep-cycled, charged when someone remembers, and left sitting for weeks. Flooded batteries do not survive that. The 38V Fleet Lithium pack holds charge for months, tolerates partial charging, and cuts about 260 lb off the vehicle.
Choose Your Capacity
| Capacity | Range* | Best For |
|---|---|---|
| 38.4V 105Ah | Up to 50 mi | Daily driving |
What's Included
- 38.4V NexGen Fleet Lithium LiFePO4 Battery (selected capacity)
- FL-36C — 43.8V 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 Workhorse 800 | 2001–2003 | 6x 6V | Matched to your tray |
Which Do You Have?
This kit is for the electric 36V Workhorse 800 with six 6V batteries. Gas models and voltage conversions are not covered.
Will It Work With My Controller?
The Workhorse 800 uses a solid-state 36V series controller. Confirm the controller label in the battery compartment before ordering — these vehicles are often rebuilt.
Frequently Asked Questions
Will this fit my Workhorse 800?
Yes, for the electric 36V six 6V build.
It sits for weeks at a time — is that a problem?
No. Lithium self-discharges very slowly and does not sulfate when stored partially charged.
Does it fit gas Workhorse models?
No.
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.
Electrical & Performance
- Factory Pack Voltage
Battery & BMS
- Battery Technology
- Battery Type
- EV Battery Type
- BMS Features
- 300A Continuous / 800A Peak Surge Discharge , Advanced Battery Management System (BMS) , Internal Heating for Cold Temp Charging , Active Cell Balancing for Extended Life Cycle
- Safety Features
- Thermal Regulation (Heated Cells) , Low Voltage Disconnect (LVD) , Over Charge / Discharge Protection , Over Current Protection
- Battery Features
- Operating Temperature
- Charging: 32 to 140 ºF (0 to 60 ºC) , Discharging: -4 to 149 ºF (-20 to 65 ºC) , Storage: 50 to 113 ºF (10 to 45 ºC)
Warranty & Compliance
- Certifications
- UL 1642 , UL 1973 , CE , RoHS , UN38.3 , IP67
- Standards
- Condition
- Manufacturer Relationship
Product Details
- Classification
- Colour / Finish
- Vendor
- Fleet Lithium
- Product Type
- Lithium Battery Conversion Kit
- SKU
- EZWHE-38105
- Shipping Weight
- 118.0 lb
Let customers speak for us
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Easy installation and great technical support.
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Cabels look great. Will be installing them by the end of the week. Frank
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The 76V replacement charger replaced the previous unit without requiring a complicated setup. Charging has been predictable, and the connector fits securely.
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The 12V voltage reducer provided a clear path for running standard accessories from the higher-voltage battery system. The result has been reliable and easy to service.
The BlueMax 105Ah marine battery eliminated routine water checks and corrosion cleanup while providing smoother power. The battery compartment is cleaner and easier to inspect now.
The 51V 105Ah bundle solved the voltage drop and inconsistent performance that had developed with the previous batteries. The vehicle now feels predictable from the beginning of a trip to the end.
