Navitas 4-Seater Frame 72V Lithium Battery Conversion Kit — Fleet Lithium
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
Navitas 4-Seater Frame 72V Lithium Battery Conversion Kit — Fleet Lithium - 105Ahis backordered and will ship as soon as it is back in stock.
Navitas 4-Seater Frame 72V Lithium Battery Conversion Kit — Fleet L...
Direct Drop-In 72V Lithium Upgrade for Navitas Chassis Frames
Replace your heavy lead-acid batteries with a single Fleet Lithium 76.8V LiFePO4 battery pack. Designed specifically for Navitas chassis builds, this complete conversion kit includes everything needed for a seamless upgrade — battery, charger, mounting bracket, and cables.
Fitment Guide
| OEM | Model | Year Range | Factory Voltage |
|---|---|---|---|
| Navitas | All Chassis Models | All Years | 72V (6× 12V) |
Controller Compatibility
Navitas controllers are designed for lithium compatibility. No programming required in most configurations. Verify your specific controller model supports 76.8V nominal input.
What's Included
- ✅ Fleet Lithium 76.8V LiFePO4 Battery Pack with 300A NexGen BMS (800A peak surge)
- ✅ Integrated Bluetooth monitoring and cold-weather heating system
- ✅ 72V lithium-compatible charger
- ✅ Vehicle-specific mounting bracket kit (BR5141)
- ✅ Pre-terminated cable harness with corrosion-resistant terminals
Key Specifications
- Chemistry: LiFePO4 (Lithium Iron Phosphate)
- Nominal Voltage: 76.8V
- Cycle Life: 5,000+ cycles at 80% DoD
- Certifications: UL 1642, UL 1973, CE, RoHS, UN38.3, IP67
- Warranty: 10-Year Limited Warranty
Frequently Asked Questions
Which capacity is right for me?
105Ah (8.06 kWh) — Best all-around option for daily driving. Provides up to 50 miles of range per charge and fits most standard configurations.
168Ah (12.90 kWh) — Maximum range for extended use. Delivers up to 80 miles per charge, ideal for large properties, commercial fleets, or all-day driving.
Will this void my warranty?
Installing a Fleet Lithium battery does not void your vehicle's warranty. The battery itself is covered by a 10-year limited warranty.
How long does installation take?
Most installations are completed in 30–60 minutes with basic hand tools. No wiring modifications are required.
Quick answer: the Navitas 4-Seater Frame 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 EVE Prismatic Cell - 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
- Cold Crank Amps
- 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, Patent-Pending Fire Suppression System, Real-time status monitoring (via app or display), Active Cell Balancing for Extended Life Cycle, Bluetooth Communication with BT 5.0
- Safety Features
- Thermal Regulation (Heated Cells), Built in Fire Extinguishers, Jump Start on Low Voltage, Low Voltage Disconnect (LVD), Low Temp Charging Cutoff, Over Charge / Discharge Protection, Reverse Polarity 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)
Dimensions & Weight
- Dimensions (L x W x H)
Fitment & Compatibility
- Make
- Model
- Model Year
- 0
- 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
- NV7676105
- Shipping Weight
- 120.0 lb
Let customers speak for us
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.
The parts for the EZGO RXV 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 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.
