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Bad Boy Recoil & Recoil iS Lithium Battery Conversion Kit (72V) | Fleet Lithium

$3,78027 USD
Shipping calculated at checkout.
10-Year Warranty US-Based Support Ships From The USA 30-Day Guarantee Safe Chemistry

Drop-In Lithium Power for Your Bad Boy Recoil

Replace the factory lead-acid batteries in your Bad Boy Recoil or Recoil iS (all years) with a single, lightweight 76.8V LiFePO4 lithium battery conversion kit from Fleet Lithium. The factory Recoil uses six 12V batteries wired in series for a 72V system. Our drop-in kits consolidate all of that 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, golf, errands
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
  • BR4211 — Bad Boy Recoil 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 Recoil All Years 72V AC Yes
Bad Boy Recoil iS All Years 72V AC Yes

All kits use the same BR4211 bracket and are fully compatible with the factory 72V AC controller. No upgrades or reprogramming needed.

FAQ

Will this fit my Bad Boy Recoil? Yes. The included BR4211 bracket kit ensures a secure, factory-fit installation for Recoil and Recoil iS across all production years. No modifications required.

Do I need to reprogram my controller? No. The factory 72V AC controller is compatible with 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. The heater does not run during discharge/driving.

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.

  • 5 stars: 1 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
D
Daniel L. (United States)
76.8V 105Ah
Amazing Product, Amazing Customer Service

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.

Daniel L. review photo

Hi Daniel, thank you for your fantastic review! We're thrilled to hear you’re enjoying the battery and that our support has made your experience even better. Happy riding!

J
Jerry M.

Will this fit bad boy recoil with 9 eight volt batteries

Fleet L.-.H.P.L.B.

Yes, we can make this work. Nine 8V batteries are still a 72V system, but the tray layout is different, so send us a photo and measurements and we’ll confirm the bracket. The Recoil kit includes the battery, charger, cables, gauge, hardware, and 72V-to-12V reducer.

Let customers speak for us

from 460 reviews
BlueMax Marine 12V 105Ah LiFePO4 Battery (Group 24)
Colbyutahman
fantastic upgrade

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.

BlueMax Marine 12V 105Ah LiFePO4 Battery (Group 24)
Bad Boy Recoil & Recoil iS Lithium Battery Conversion Kit (72V) | Fleet Lithium
Daniel L.
Amazing Product, Amazing Customer Service

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.

Bad Boy Recoil & Recoil iS Lithium Battery Conversion Kit (72V) | Fleet Lithium
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Kevin l.
We're loving this!

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.

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Was a slight hick up with the darn computer bot

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

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GREAT

GREAT SERVICE

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Awesome kit for cold weather climate

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!

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Carter A.
Solved inconsistent accessory voltage — 12V voltage reducer

The 12V voltage reducer corrected the unstable behavior that had affected the lights and other accessories. The output has remained steady through regular use.

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Samantha S.
A practical spare or replacement — 51V replacement charger

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.

58.4V 18A On-board LiFePO4 Charger (CH5618)
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Claire Z.
Clean fit for the Polaris Ranger EV bundle — Polaris Ranger EV bundle

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.

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58.4V 18A On-board LiFePO4 Charger (CH5618)
Cooper X.
Dependable charging from the 51V replacement charger — 51V replacement charger

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.

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Lee L.
Easy installation and great technical support

Easy installation and great technical support.

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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.

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Frank K.
Cabels look great

Cabels look great. Will be installing them by the end of the week. Frank

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Parker A.
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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.

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Erica X.
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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.

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About Fleet Lithium

Built for demanding applications. Ready for everyday use.

Fleet Lithium develops high-output LiFePO4 battery systems for golf carts, LSVs, UTVs, marine, RV, and off-grid applications. We combine serious power capability with application-specific fitment, complete conversion components, and direct technical support.

Find My Battery Talk to Our Team

Why Fleet is in our name

Fleet Lithium was built around equipment that gets used hard and cannot afford unreliable power.

Fleet Lithium was built around equipment that gets used hard and cannot afford unreliable power. Government fleets, rental operators, farms, hunting properties, and utility vehicles were our proving ground—not the modified-cart trend.

Those demanding applications shaped our approach from the beginning: build batteries with the power, control, and durability required for heavy daily use. That same overbuilt approach now serves individual golf cart, LSV, UTV, boat, RV, and off-grid customers who simply want a system they can depend on.

More than a battery in a box

A successful lithium conversion takes more than matching voltage and amp-hours.

Battery output, controller demand, charger programming, mounting, cabling, vehicle electronics, and communication protocols all have to work together. Fleet Lithium develops complete systems around the application so customers and installers do not have to piece together a conversion and hope the components are compatible.

Depending on the application, a Fleet Lithium solution may include the battery, matched charger, mounting hardware, cables, gauge or display integration, programming, installation guidance, and direct technical support.

Power and control built into the system

Fleet Lithium’s current NexGen battery management platform is rated for 300 amps of continuous discharge and up to 800 amps of peak output. It is designed to support real controller demand without treating every short power surge as an overload.

Select Fleet Lithium systems also support features such as OEM CAN-bus integration, cold-weather charging automation, Bluetooth monitoring, and GPS or geofencing for fleet security and operational control. These capabilities are application-dependent—not included with every battery.

  • 300A continuous / 800A peak surge discharge
  • OEM CAN-bus integration on select systems
  • Cold-weather charging, Bluetooth, GPS/geofencing where applicable

The application matters as much as the voltage

Two vehicles can use the same nominal voltage and still require completely different batteries, mounting solutions, chargers, cables, programming, or controller considerations.

Fleet Lithium researches vehicle generations, battery compartments, electrical architecture, controller demand, and charging requirements to develop application-specific configurations. Where fitment or installation requirements are verified, we document them clearly. Where additional validation is still required, we do not present an assumption as a confirmed fit.

Support and Warranty

Support from people who understand the entire system

Our support does not stop at the battery terminals. We help customers work through the battery, BMS, charger, controller, vehicle wiring, programming, and installation as one connected system.

Customers have direct access to technical support, product specifications, installation information, troubleshooting resources, warranty registration, and claims assistance.

Fleet Lithium Promise Series packs are backed by a 10-year warranty.

Visit the Support Center
10 Year Promise Series warranty
USA Technical support

Built for the way you actually use it

Whether you manage a working fleet, operate equipment on a farm, hunt remote property, commute in an LSV, cruise in a golf cart, spend the day on the water, or need dependable off-grid power, Fleet Lithium is built around the application—not just the battery specification.

Find the Right Battery Contact Fleet Lithium