Fleet Lithium 51 Volt Battery Bundle for Polaris Ranger EV (2010–2021)
Features
Features
Backed by a 10 Year Warranty
Backed by a 10 Year Warranty
Fleet Lithium 51 Volt Battery Bundle for Polaris Ranger EV (2010–2021) - 51V 105AH PACK is backordered and will ship as soon as it is back in stock.
Drop-In Lithium Power for Your Polaris Ranger EV
Replace all eight lead-acid batteries in your Polaris Ranger EV with a single, lightweight 48V LiFePO4 lithium battery conversion kit from Fleet Lithium. The factory Ranger EV uses two battery packs of four 12V batteries wired in series (8 batteries total, 48V). 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 |
|---|---|---|---|
| 51V 105Ah | 5.38 kWh | Up to 50 miles* | Daily driving, errands, golf |
| 51V 168Ah | 8.60 kWh | Up to 75 miles* | All-day use, long routes |
| 51V 210Ah | 10.75 kWh | Up to 90 miles* | Maximum range, commercial & fleet 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
- 51V NexGen Fleet Lithium LiFePO4 Battery (your selected capacity)
- CH5618 — 58.4V 18A LiFePO4 Smart Charger
- BR3110 — Vehicle-Specific Bracket Kit for Polaris Ranger EV (2010–2021)
- AC0219 — AC Power Connector
- CB0917 — Cable Set (35.4")
- 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 |
|---|---|---|---|
| Polaris Ranger EV (Lead-Acid) | 2010–2015 | 48V (8 × 12V lead-acid) | Yes |
| Polaris Ranger EV Li-Ion | 2016–2019 | 48V (factory lithium-ion) | Yes |
| Polaris Ranger EV (Lead-Acid) | 2015–2021 | 48V (8 × 12V lead-acid) | Yes |
All kits use the same BR3110 bracket and are fully compatible with both the lead-acid and Li-Ion factory controllers. No upgrades or reprogramming needed.
FAQ
Will this fit my Polaris Ranger EV?
Yes. The included BR3110 bracket kit ensures a secure, factory-fit installation for all Ranger EV models (2010–2021), including the Li-Ion variant. No modifications required.
I have the Li-Ion model — do I still need this kit?
Yes! The factory Li-Ion pack degrades over time and is expensive to replace through Polaris. Our kit replaces it with a higher-capacity, longer-lasting LiFePO4 battery with a 10-year warranty at a fraction of the OEM replacement cost.
Do I need to reprogram my controller?
No. Works with your factory 48V controller out of the box — both lead-acid and Li-Ion models.
How long does installation take?
30–60 minutes with basic hand tools.
Does it work in cold weather?
Yes. The built-in heater activates automatically when the battery is plugged in for charging below 32°F, protecting the cells during cold-weather charging. The heater does not run during discharge/driving.
Which capacity should I choose?
105Ah for up to 50 miles (most popular), 168Ah for up to 75 miles, or 210Ah for up to 90 miles.
*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.
Let customers speak for us
Nice and easy install, they work great, much longer range and way better power. Best of all, NO MAINTENANCE
Tried cheaper lithium setups first and they couldn’t handle the amp draw. This one has been solid with no issues.
Absolutely Incredible Range. We replaced our 4 year old Trojan batteries this spring with the 210 AH dual battery kit and we are blown away! We use the buggy to secure the perimeter of a 300 acre lot in South Carolina. We typically put about 200 miles per week on this unit. We have been testing this kit for about a month now and we are getting every bit of 80 miles per charge. Its absolutely unbelievable. Thank you Fleet Lithium!
This screen was so easy to install. We installed our fleet lithium battery about 2 years ago, the screen just came out in April, it took 10 minutes to install and everything works perfectly. Thank you Fleet lithium!
After a few months of use I can confidently say this was worth it. No maintenance, great range, and consistent power every time. Huge upgrade from stock.
I should have just bought this first instead of wasting money on others.
I use my Prowler every day hauling feed and equipment. Other batteries kept shutting down under load. This is the only one that worked right. Glad I spent the money.
Runs strong every time. Exactly what I needed.
The range has doubled compared to my old setup. Installation was straightforward and the instructions were clear. I can now play multiple rounds without recharging.
Tried cheaper lithium setups first and they couldn’t handle the amp draw. This one has been solid with no issues.
Runs strong every time. Exactly what I needed.
No more issues with power cutting out. That alone made it worth it.
No more issues with power cutting out. That alone made it worth it.
Runs strong every time. Exactly what I needed.
Handles hills and heavy loads without hesitation. Very impressed so far.
