Bad Boy Buggies 72V Lithium Battery Conversion Kit — Ambush & XT | Fleet Lithium

Bad Boy Buggies 72V Lithium Battery Conversion Kit — Ambush & XT | Fleet LithiumDrop In Lithium Power for Your Bad Boy Buggies 72V Replace the factory lead acid batteries in your 72V Bad Boy Buggies (Ambush, XT all years) with a single, lightweight 76. 8V LiFePO4 lithium battery conversion kit from Fleet Lithium. Our drop in kits consolidate the entire factory battery bank into one compact unit no rewiring, no programming, no special tools. Choose the capacity that matches your driving needs and enjoy longer range, faster

Drop-In Lithium Power for Your Bad Boy Buggies 72V

Replace the factory lead-acid batteries in your 72V Bad Boy Buggies (Ambush, XT — all years) with a single, lightweight 76.8V LiFePO4 lithium battery conversion kit from Fleet Lithium. Our drop-in kits consolidate the entire factory battery bank into one compact unit — no rewiring, no programming, no special tools.

Choose the capacity that matches your driving needs and enjoy longer range, faster charging, and maintenance-free performance for years to come.

Choose Your Range

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

• 76.8V NexGen Fleet Lithium LiFePO4 Battery (your selected capacity)
• CH8713 — 87.6V 13A LiFePO4 Smart Charger
• BR5204-72 — Bad Boy Buggies 72V Vehicle-Specific Bracket Kit
• AC0219 — AC Power Connector
• CB0917 — Heavy-Gauge Battery Cable Set (35.4")
• VR7212 — 72V to 12V Voltage Reducer (for lights & accessories)
• Digital State-of-Charge (SOC) Gauge
• All mounting hardware — complete bolt-in installation

Why Fleet Lithium?

• ✔ 300A NexGen BMS — 800A peak surge for demanding hill climbs
• ✔ 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

All kits use the same BR5204-72 bracket and are fully compatible with the factory 72V controller. No upgrades or reprogramming needed.

FAQ

Will this fit my 72V Bad Boy Buggies? Yes. The included BR5204-72 bracket kit ensures a secure, factory-fit installation for Ambush and XT across all production years.

Do I need to reprogram my controller? No. The factory 72V controller accepts the 76.8V lithium pack out of the box.

How long does installation take? 30–60 minutes with basic hand tools.

Does it work in cold weather? Yes. Built-in heater activates automatically below 32°F for safe cold-weather charging.

Will my 12V accessories still work? Yes. The included VR7212 voltage reducer steps the 76.8V pack down to 12V for your lights, horn, gauges, and accessories.

Which capacity should I choose? 105Ah for up to 75 miles (most popular), 168Ah for up to 95 miles for max range and all-day use.

*Range estimates represent maximum distance under ideal conditions (flat terrain, single occupant, 12–15 mph, fully charged, 70°F). Actual range varies based on terrain, weight, speed, temperature, and driving habits.