EZGO Freedom TXT (2017-2021) 72V Lithium Battery Conversion Kit — Fleet Lithium
EZGO Freedom TXT (2017-2021) 72V Lithium Battery Conversion Kit — Fleet Lithium - 76.8V 105Ah Backordered — estimated to ship Sep 15
EZGO Freedom TXT (2017-2021) 72V Lithium Battery Conversion Kit — F...
Upgrade Your 72V E-Z-GO Freedom TXT to Fleet Lithium
Replace the six 12V lead-acid batteries in your 72V E-Z-GO Freedom TXT with a single 76.8V LiFePO4 pack from Fleet Lithium. Complete conversion kit — battery, 72V charger, BR5900 bracket kit, cables and hardware included. Half the weight, twice the range, and no watering, ever.
Choose Your Capacity
| Capacity | Range | Best For |
|---|---|---|
| 76.8V 105Ah | Up to 65 mi | Daily driving, golf |
| 76.8V 168Ah | Up to 100 mi | All-day use, fleet duty |
What's Included
- 76.8V NexGen Fleet Lithium LiFePO4 Battery (selected capacity)
- CH8713 — 87.6V LiFePO4 Smart Charger
- BR5900 — Bracket Kit for E-Z-GO Freedom TXT 72V
- 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, cycle count from your phone
- 10-year warranty — designed and assembled in the USA
Fitment Guide
| OEM Model | Years | Factory Pack | Bracket Shipped |
|---|---|---|---|
| E-Z-GO Freedom TXT (72V AC) | 2017–2021 | 72V, six 12V lead-acid | BR5900 |
OEM parts fitment supports the 72V six-12V Freedom TXT from 2017 through 2021. Open the seat and confirm six 12V batteries before ordering — a 48V Freedom TXT uses a different kit, and factory ELiTE lithium carts are not covered.
Controller Compatibility
The 72V Freedom TXT uses an E-Z-GO 350A AC controller. The Fleet Lithium 76.8V pack is fully compatible — no reprogramming, no controller upgrade, and no wiring changes. Aftermarket controllers should be verified separately.
Will this fit my Freedom TXT?
Yes, on 72V lead-acid Freedom TXT carts from 2017 through 2021. No vehicle modification is expected with BR5900 and the Fleet 72V lithium charger.
Does it fit a 48V Freedom TXT?
No. The 48V Freedom TXT uses a different pack voltage and charger. Use the vehicle finder to confirm your system voltage before ordering.
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 Freedom TXT (2017-2021) 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), cell 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
- Cell Chemistry
- 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
- EV 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)
- Weight
- 147.0 lb
Fitment & Compatibility
- Make
- Model
- Model Year
- 2017 , 2018 , 2019 , 2020 , 2021
- Model Number
- Motor Controller
Warranty & Compliance
- Warranty
- Certifications & Standards
- UL 1642, UL 1973, CE, RoHS, UN 38.3, IP67
- Condition
- Manufacturer Relationship
Product Details
- Classification
- Colour / Finish
- Vendor
- Fleet Lithium
- Product Type
- OE Battery Bundles
- SKU
- EZ5900
Let customers speak for us
Cannot thank these guys enough. Our Hunting buggy is a whole new animal of its own! The team did a great job answering questions, shipping took 3 days and i was even able to reach the support team at 4pm on a Saturday during install. Cannot thank them enough! Don't think twice, Fleet is the way to go for your lithium job.
Was a slight hick up with the darn computer bot. Once we got thru that the service and help with my change over was top notch.
Mt Ranger performance is awesome with the Fleet battery
GREAT SERVICE
Awesome kit. We Live in a very cold climate, our ranger gets a ton of use year round and especially during the winter so the cold weather performance was a must for us. We've had the kit installed for about a year now and it's been perfect. Customer service has been super helpful the one or two times we had questions and we've got a couple of neighbors who run the kits as well and they say the same thing. Kevin and his crew are really top notch!
The 12V voltage reducer corrected the unstable behavior that had affected the lights and other accessories. The output has remained steady through regular use.
The 51V replacement charger is easy to keep available as a backup and works without unnecessary controls. The battery reaches a complete charge consistently during normal use.
The Polaris Ranger EV bundle lined up well with the intended mounting area and the connections were easy to identify. Once installed, the vehicle felt smoother and more consistent through normal use.
The 51V replacement charger connected as expected and has charged the compatible battery consistently. The status indicators are easy to follow, and the unit feels solid in regular use.
Easy installation and great technical support.
After installing the Club Car 48V kit, throttle response felt more immediate and the vehicle no longer felt sluggish late in the charge. The cleaner battery compartment is another welcome improvement.
Cabels look great. Will be installing them by the end of the week. Frank
The BlueMax 200Ah marine battery has provided steady power for onboard electronics and normal time on the water. It is easier to handle than the older battery and has required very little attention between trips.
The parts for the EZGO TXT kit were organized clearly and the installation sequence made sense. The finished setup looks tidy and removes the routine upkeep of the old battery bank.
The 76V replacement charger replaced the previous unit without requiring a complicated setup. Charging has been predictable, and the connector fits securely.
The plug on the 51V replacement charger seats firmly and the unit maintains a normal charging cycle. The battery has been ready for use each time charging is complete.
