Drop-In Lithium Power for Your Bad Boy 1500E MTV
The Bad Boy 1500E MTV 4x4 was built as a heavy-duty utility machine — but its factory lead-acid battery pack was always the weak link. This complete 48V lithium conversion kit replaces the entire flooded battery bank with a modern LiFePO4 power system engineered specifically for the 1500E MTV chassis, tray layout, and original drivetrain.
Delivering cleaner torque, dramatically longer range, faster charging, and true maintenance-free operation, this is a complete conversion solution — not a universal battery with generic hardware. Every component is selected for this exact vehicle.
Designed to work with the original DC motor and drivetrain, this is a true bolt-in upgrade requiring no fabrication, welding, or guesswork.
Choose Your Range
| Capacity |
Energy (kWh) |
Estimated Range |
Best For |
| 51V 105Ah |
5.38 kWh |
Up to 45 miles* |
Daily property work & utility use |
| 51V 168Ah |
8.60 kWh |
Up to 75 miles* |
Extended range, hunting, ranch |
| 51V 210Ah (Dual 105Ah) |
10.75 kWh |
Up to 90 miles* |
Maximum range, commercial duty |
*Range varies with terrain, load, and driving style.
Cold-Weather Charging Protection — Standard on Every Pack
Every Fleet Lithium battery includes a built-in heater that activates automatically when charging below 32°F (0°C). This protects the cells during cold-weather charging — no extra charge, unlike competitors who charge $200–$400 for heated versions.
What's Included
- 51V NexGen Fleet Lithium LiFePO4 Battery (your selected capacity)
- CH5618 — 58.4V 18A LiFePO4 Smart Charger
- BR5204 — Vehicle-specific mounting bracket kit
- AC0219 — AC Power Connector
- CB0917 — 4 AWG Heavy-Gauge Battery Cable Set
- VR4812 — 48V to 12V Voltage Reducer (for lights & accessories)
- Digital State-of-Charge (SOC) Gauge
- All mounting hardware — complete bolt-in installation
Simple Installation
- Designed for the 1500E MTV with the original DC motor
- No welding or frame modification
- No controller programming required (stock drivetrain retained)
- Controller requirement: 350A or higher continuous rating
- Bolt-in installation using existing tray
- Universal joint brace included for secure fitment
- Typical install time: 1.5–2 hours
Detailed Specifications
| Specification |
Detail |
| Vehicle Fitment |
Bad Boy 1500E MTV 4x4 (All Years) |
| System Voltage |
48V (51.2V nominal LiFePO4) |
| Motor Compatibility |
Original DC Motor |
| Controller Requirement |
350A+ continuous rating |
| Chemistry |
LiFePO4 (Lithium Iron Phosphate) |
| Cycle Life |
5,000+ cycles at 80% DoD |
| Charging Time |
Approx. 4–6 hours |
| Heating System |
Built-in automatic low-temp charging protection |
| Weight Reduction |
Over 300 lbs vs. factory lead-acid bank |
| Maintenance |
Zero watering, zero corrosion |
| Warranty |
10-Year Fleet Lithium Warranty |
Why Fleet Lithium?
- ✔ 300A NexGen BMS — 800A peak surge for steep terrain and heavy loads
- ✔ Patent-Pending Fire Suppression — stops thermal runaway before it starts
- ✔ Bluetooth Monitoring — check health, voltage, temp from your phone
- ✔ 10-Year Warranty — industry-leading coverage
- ✔ Designed & Assembled in the USA
- ✔ True Drop-In — no rewiring, no reprogramming
Fitment
| Model |
Years |
Factory Voltage |
Compatible |
| Bad Boy 1500E MTV 4x4 |
All Years |
48V |
Yes |
This kit uses the vehicle-specific BR5204 bracket kit and is fully compatible with the factory DC motor and controller. No upgrades or reprogramming needed.
FAQ
Will this fit my Bad Boy 1500E MTV? Yes — this kit was engineered specifically for the 1500E MTV chassis and tray layout (all model years) using the included BR5204 bracket system.
Is this compatible with the original motor? Yes. It is designed to work with the factory DC motor and stock drivetrain.
Do I need to upgrade my controller? Your controller must be rated at 350A continuous or higher. Most factory configurations meet this requirement. If unsure, contact us before ordering.
How long does installation take? Approximately 1.5–2 hours with basic tools.
Will my lights and accessories still work? Yes. The included VR4812 voltage reducer powers all 12V factory systems.
Can I use it for commercial or property maintenance work? Absolutely. The 1500E MTV was built as a utility machine — this kit restores full capability with modern lithium performance.
What's in the Box
- LiFePO4 battery (selected capacity)
- Smart lithium charger
- Vehicle-specific bracket kit (BR5204)
- 4 AWG cable set (CB0917)
- AC charging connector (AC0219)
- Voltage reducer (VR4812)
- Digital SOC gauge
- Complete mounting hardware
Restore the capability your 1500E MTV was built for. Upgrade to lithium and experience stronger torque, dramatically longer range, faster charging, and true maintenance-free ownership. Ships from the USA — shipping calculated at checkout.
