EZGO Express S2 (2021-2022) 72V Lithium Battery Conversion Kit — Fleet Lithium
EZGO Express S2 (2021-2022) 72V Lithium Battery Conversion Kit — Fleet Lithium - 76.8V 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 Express S2 (2021-2022) 72V Lithium Battery Conversion Kit — Fl...
Upgrade Your E-Z-GO Express S2 to Fleet Lithium
A 72V Express S2 with six 12V flooded batteries carries about 400 lb of lead that you paid for in acceleration and range every single day. The 76.8V Fleet Lithium pack keeps the speed and torque the 72V platform is known for while cutting roughly 250 lb, charging in a fraction of the time, and needing zero maintenance for the life of the warranty.
Choose Your Capacity
| Capacity | Range* | Best For |
|---|---|---|
| 76.8V 105Ah | Up to 50 mi | Daily driving |
| 76.8V 168Ah | Up to 75 mi | All-day use |
What's Included
- 76.8V NexGen Fleet Lithium LiFePO4 Battery (selected capacity)
- CH8713 — 87.6V 13A 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 Express S2 | 2021–2022 | 6x 12V | Matched to your tray |
Which Do You Have?
This kit is for the 72V lead-acid S2. If your cart came with a factory ELiTE lithium pack, it uses a different architecture and is not covered.
Will It Work With My Controller?
The S2's 350A 72V AC drive accepts the 76.8V Fleet pack directly. No reprogramming and no controller upgrade.
Frequently Asked Questions
Will this fit my Express S2?
Yes, if it has six 12V lead-acid batteries.
Does it fit a factory ELiTE lithium S2?
No.
Which capacity should I pick?
105Ah covers most daily use. Choose 168Ah for all-day or loaded 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.
Quick answer: the EZGO Express S2 (2021-2022) 72V Lithium Battery Conversion Kit — Fleet Lithium from Fleet Lithium has nominal voltage 76.8V, capacity 105 AH, continuous / peak discharge 300A continuous / 800A peak surge, cycle life 5,000+ cycles at 80% Depth of Discharge (DoD), chemistry Lithium Iron Phosphate (LiFePO4), warranty 10 Year Warranty. The complete specification table for this configuration is below.
Electrical & Performance
- Nominal Voltage
- Factory Pack Voltage
- Capacity
- Nominal Energy
- Continuous / Peak Discharge
- Charging Voltage
- Charging Current
- Discharge Cutoff Voltage
- Cycle Life
Battery & BMS
- Chemistry
- 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)
Dimensions & Weight
- Dimensions (L x W x H)
Fitment & Compatibility
- Make
- Model
- Model Year
- 2021 , 2022
- Model Number
- Motor Controller
Warranty & Compliance
- Warranty
- 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
- EZEST-76105
- Shipping Weight
- 147.0 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 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.
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