51V 168Ah Fleet Lithium Battery Bundle — NexGen BMS
51V 168Ah Fleet Lithium Battery Bundle — NexGen BMSis 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
51V 168Ah Fleet Lithium Battery Bundle — NexGen BMS
51V 168Ah Fleet Lithium Battery Bundle — NexGen BMS
Complete 51.2V 168Ah LiFePO4 battery bundle with 300A NexGen BMS. Everything you need for golf carts, LSVs, UTVs, marine, and off-grid applications. Stores 8,601Wh of energy — up to 75 miles of range in a 48V golf cart.
What's Included
- 51V 168Ah Fleet Lithium LiFePO4 Battery with NexGen BMS
- 58V Lithium Battery Charger
- Bluetooth Module — real-time monitoring via smartphone
- DC Voltage Reducer
- Round State-of-Charge Meter
- Universal Charge Receptacle
Key Specs
- Chemistry: LiFePO4
- Nominal Voltage: 51.2V
- Capacity: 168Ah (8,601Wh)
- 300A NexGen BMS with 800A peak surge
- Cycle Life: 5,000+ cycles at 80% DoD
- Weight: 136 lbs
- Dimensions: 22" × 12" × 10.6"
- Built-in cold-weather heater — activates automatically below 32°F
- Patent-pending fire suppression system
- Bluetooth monitoring — voltage, temp, cycle count
- IP67 waterproof rated
Safety & BMS
Active cell balancing, overcharge/over-discharge/short circuit/overcurrent/thermal/reverse polarity protection, low voltage disconnect, and real-time app monitoring.
FAQ
What vehicles does this fit? Universal bundle — no vehicle-specific bracket included. Works with any 48V system. For a vehicle-specific kit with bracket, see our Conversion Kit listings.
Does it include a charger? Yes. A 58V lithium charger is included.
Does it work in cold weather? Yes. Built-in heater activates automatically below 32°F — standard on every pack.
10-year warranty. Designed and assembled in the USA.
Quick answer: the 51V 168Ah Fleet Lithium Battery Bundle — NexGen BMS from Fleet Lithium has nominal voltage 51.2V, capacity 168 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 , Built in Fire Extinguisher for Ultimate Safety
- 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: 0°C to 45°C (32°F to 113°F) , Discharging: -20°C to 60°C (-4°F to 140°F)
Dimensions & Weight
- Dimensions (L x W x H)
- Weight
- 140.0 lb
Fitment & Compatibility
- Make
- Model
- Model Number
Warranty & Compliance
- Warranty
- Certifications
- UL 1642 , UL 1973 , CE , RoHS , UN38.8 , IP65
- Standards
- Condition
- Manufacturer Relationship
Product Details
- Classification
- Colour / Finish
- Vendor
- Fleet Lithium
- Product Type
- Lithium Battery Bundle
- SKU
- LR-51V-168-AH
Let customers speak for us
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.
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.
