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Description
EZGO Express S4 / S6 (Select Years) (48V) Fleet Lithium Conversion KitUpgrade Your EZGO Express S4 S6 to Fleet Lithium Replace the factory lead acid batteries in your EZGO Express S4 S6 with a single, high performance 51V LiFePO4 pack from Fleet Lithium. Complete conversion kit battery, charger, bracket, cables, and all hardware included. Choose Your Capacity Capacity Range Best For 51V 65Ah Up to 27 mi Stock carts only 51V 105Ah Up to 50 mi Daily driving, golf 51V 168Ah Up to 75 mi All day use 51V 210Ah Up to 90 mi Max
Upgrade Your EZGO Express S4 / S6 to Fleet Lithium
Replace the factory lead-acid batteries in your EZGO Express S4 / S6 with a single, high-performance 51V LiFePO4 pack from Fleet Lithium. Complete conversion kit — battery, charger, bracket, cables, and all hardware included.
Choose Your Capacity
| Capacity | Range | Best For |
|---|---|---|
| 51V 65Ah | Up to 27 mi | Stock carts only |
| 51V 105Ah | Up to 50 mi | Daily driving, golf |
| 51V 168Ah | Up to 75 mi | All-day use |
| 51V 210Ah | Up to 90 mi | Max range, fleet use |
65Ah is for stock motors/controllers only. If your cart has performance upgrades, choose 105Ah or higher.
What's Included
- 51V NexGen Fleet Lithium LiFePO4 Battery (selected capacity)
- CH5618 — 58.4V 18A LiFePO4 Smart Charger
- BR4480 — EZGO Express S4 / S6 Bracket Kit
- AC0219 — AC Power Connector
- CB0917 — Cable Set (35.4")
- 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, cycle count from your phone
- 10-year warranty — designed and assembled in the USA
Fitment Guide
| OEM | Model | Years | Factory Voltage |
|---|---|---|---|
| EZGO | Express S4 | All Years | 48V |
| EZGO | Express S6 | All Years | 48V |
Controller Compatibility
EZGO Express models use a factory 48V controller (Curtis or GE depending on model year). The Fleet Lithium 51V pack is fully compatible — no reprogramming or controller changes required.
Will this fit my EZGO Express S4 / S6?
Yes. The BR4480 bracket kit provides a factory-fit installation for both S4 and S6 models. No modifications required.
Does my controller need reprogramming?
No. The factory 48V controller on Express S4/S6 models accepts the 51V lithium pack without changes.
How long does installation take?
30–60 minutes with basic hand tools.
Does it work in cold weather?
Yes. 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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy