Bad Boy Buggies 48V Lithium Battery Conversion Kit — Classic, Buggy & XD | Fleet Lithium
Bad Boy Buggies 48V Lithium Battery Conversion Kit — Classic, Buggy & XD | Fleet Lithium - 51V 210Ah (Dual 105Ah)is backordered and will ship as soon as it is back in stock.
Bad Boy Buggies 48V Lithium Battery Conversion Kit — Classic, Buggy...
Lithium power for your 48V Bad Boy Buggy
Spend less time watering batteries and more time using your buggy. The Fleet Lithium conversion kit combines your selected 51.2V LiFePO4 battery configuration with a matched lithium charger, Bad Boy mounting kit, SOC display and 12V reducer.
Choose 105Ah, 168Ah or 210Ah for compatible factory 48V Classic, Buggy and XD vehicles. Confirm your exact model, original battery bank and controller wiring before installation. The original Classic uses eight 6V lead-acid batteries; other layouts can differ.
Plan your installation
Get the illustrated owner guide with kit checks, main power and 12V diagrams, testing and a fillable installation record.
Choose your capacity
| Capacity | Configuration | Nominal energy | Use |
|---|---|---|---|
| 105Ah | One pack | 5.38 kWh | Regular use with charging between outings |
| 168Ah | One pack | 8.60 kWh | More reserve in a single-pack installation |
| 210Ah | Two matched 105Ah packs in parallel | 10.75 kWh | Greatest capacity in this bundle |
All options operate at 51.2V nominal. Terrain, vehicle condition, passengers, cargo, tires, temperature and accessories affect range. Select enough capacity for your route plus a reserve.
What is included
- 51V NexGen Fleet Lithium LiFePO4 battery configuration in your selected capacity
- CH5618 — 58.4V, 18A lithium charger
- BR5204 — Bad Boy 48V vehicle mounting kit and hardware
- AC0219 — AC inlet
- CB0917 — main battery cable set, 35.4 inches
- VR4812 — pack-to-12V voltage reducer
- Digital state-of-charge gauge
For 210Ah, follow the approved matched-pair, parallel harness and protection instructions. Confirm the delivered mounting parts, cable reach and connection specifications before removing the old bank.
Built for easier battery ownership
- No battery watering or lead-acid equalization. Follow normal inspection, charging and storage guidance.
- Battery information when you need it. Use the supplied SOC display and supported Bluetooth monitoring.
- Heating for cold charging conditions. Current NexGen packs use internal heating during the charging process, not while driving.
- Fleet support and warranty coverage. See the current warranty terms and registration requirements.
Fitment and wiring
This bundle is listed for compatible factory 48V Bad Boy Classic, Buggy and XD vehicles. It is not a 72V or hybrid conversion. Send Fleet your model/serial label, controller labels and battery-compartment photos if the vehicle has been modified or its configuration is unclear.
Identify every original battery tap. Confirmed 12V accessories must use the correctly wired and protected reducer output. Key, contactor and direction controls need their specified voltage and return; some arrangements require a vehicle-specific interface. Verify winch current separately. Use the delivered vehicle and kit instructions for torque, protection, mounting and any controller requirements.
Frequently asked questions
Can a 48V Bad Boy Buggy be converted to lithium?
Yes, a compatible factory 48V lead-acid Bad Boy can use the Fleet 51.2V LiFePO4 conversion system. Confirm the model, controller arrangement, mounting and low-voltage circuits before choosing the kit. This guide does not cover 72V or hybrid systems.
Why is the replacement battery labeled 51V instead of 48V?
Fleet uses 51V as the product name for a 51.2V nominal LiFePO4 battery. It is the lithium configuration offered for this compatible 48V vehicle class. Nominal voltage alone does not establish vehicle compatibility.
Can I reuse the original lead-acid charger?
Use the matched CH5618 58.4V, 18A lithium charger. Do not use the original lead-acid charger on the Fleet lithium pack. Preserve any vehicle charging interlock with the approved interface.
Will my lights and winch still work?
Confirmed 12V accessories use the correctly wired and protected 12V supply. Check a winch separately: its starting and operating current may exceed an accessory reducer. Existing control wires also need their correct voltage and return; they are not automatically accessory wires.
Is the 210Ah system one battery?
No. The 210Ah option uses two matched 51.2V 105Ah packs in parallel. Total capacity is 210Ah and nominal voltage stays 51.2V. Use the approved parallel harness and matching procedure, never a series connection.
How long does installation take?
There is no dependable universal installation time. Battery removal, tray condition, mounting, legacy control wiring, charging interfaces and testing all affect the job. Identify the complete system before scheduling the work.
Ask Fleet Lithium to help confirm your fitment and capacity.
Quick answer: the Bad Boy Buggies 48V Lithium Battery Conversion Kit — Classic, Buggy & XD | Fleet Lithium from Fleet Lithium has nominal voltage 51.2V, 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 , 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: 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
- 165.0 lb
Fitment & Compatibility
- Make
- Model
- 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
- FLBB-51210
Let customers speak for us
What a fantastic upgrade from my old acid batteries. It was time and I’m so impressed. Shipping came smoothly. Customer service has been fantastic and looking forward to the adventures to come including camping, RV, fishing, boating.
The customer service and the battery itself from Fleet Lithium is unbeatable. One of the best experiences as a customer I have ever had. They stand by their product and help you every step of the way to ensure you are happy in your purchase. The install was easy once you know where everything is supposed to go and the battery has performed flawlessly in my Bad Boy Recoil since installation. It made it a lot lighter and the buggy is obviously quicker now and I was able to ride it around the farm for hours in fast mode the other day and only used 25% of the battery carrying a buddy and myself. It is really amazing.
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.
