Drop-In Lithium Power for Your Bad Boy Buggies 72VReplace 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 Capacity Energy (kWh) Estimated Range Best For 76.8V 105Ah 8.06 kWh Up to 75 miles* Daily driving, hunting, ranch 76.8V 168Ah 12.90 kWh Up to 95 miles* Max range, all-day use 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 Model Years Factory Voltage Compatible Bad Boy Ambush All Years 72V Yes Bad Boy XT All Years 72V Yes 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. {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Will this fit my 72V Bad Boy Buggies?","acceptedAnswer":{"@type":"Answer","text":"Yes. The included BR5204-72 bracket kit ensures a secure, factory-fit installation for Ambush and XT across all production years."}},{"@type":"Question","name":"Do I need to reprogram my controller?","acceptedAnswer":{"@type":"Answer","text":"No. The factory 72V controller accepts the 76.8V lithium pack out of the box."}},{"@type":"Question","name":"How long does installation take?","acceptedAnswer":{"@type":"Answer","text":"30-60 minutes with basic hand tools."}},{"@type":"Question","name":"Does it work in cold weather?","acceptedAnswer":{"@type":"Answer","text":"Yes. Built-in heater activates automatically below 32F for safe cold-weather charging."}},{"@type":"Question","name":"Will my 12V accessories still work?","acceptedAnswer":{"@type":"Answer","text":"Yes. The included VR7212 voltage reducer steps the 76.8V pack down to 12V for lights, horn, gauges, and accessories."}},{"@type":"Question","name":"Which capacity should I choose?","acceptedAnswer":{"@type":"Answer","text":"105Ah for up to 75 miles (most popular), 168Ah for up to 95 miles for max range."}}]}
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