Eco Battery GEN3 51.2V LiFePO4 Lithium Kit for Polaris Ranger EV 2010-2021
SKU: 58295358136

Eco Battery GEN3 51.2V LiFePO4 Lithium Kit for Polaris Ranger EV 2010-2021

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Description

Eco Battery GEN3 51.2V LiFePO4 Lithium Kit for Polaris Ranger EV 2010-2021The Eco Battery GEN3 51. 2V Lithium Conversion Kit is a lithium iron phosphate (LiFePO4) battery replacement for the Polaris Ranger EV. The nominal voltage is 51. 2V, fully compatible with the Polaris Ranger EV 48V system. It is available in two capacities: 105Ah (Kit B 3171) and 150Ah (Kit B 3180). Each kit replaces the factory lead acid battery pack all eight 12V batteries with a single lithium unit, along with a compatible CAN charger, LCD state of

The Eco Battery GEN3 51.2V Lithium Conversion Kit is a lithium iron phosphate (LiFePO4) battery replacement for the Polaris Ranger EV.

The nominal voltage is 51.2V, fully compatible with the Polaris Ranger EV 48V system. It is available in two capacities: 105Ah (Kit B-3171) and 150Ah (Kit B-3180). Each kit replaces the factory lead-acid battery pack all eight 12V batteries with a single lithium unit, along with a compatible CAN charger, LCD state-of-charge meter, charge port, vehicle-specific mounting hardware, and a remote wake-up button. Eco Battery is manufactured by ECO Capital and is headquartered in Saint George, Utah.

Why the Polaris Ranger EV Requires a High-Discharge Battery

The Polaris Ranger EV is powered by a 30-horsepower, 48V three-phase AC motor. This motor requires a minimum of 200A continuous discharge to operate under normal driving conditions, and up to 400A peak discharge during acceleration, hill climbs, and towing. A battery with a BMS rated below these thresholds will trigger a protective shutdown under load a common issue when standard golf-cart batteries, which are typically rated at 175A continuous or lower, are used in the Ranger EV.

The Eco Battery GEN3 BMS is rated at 250A continuous discharge, 550A for 10 seconds, and 600A for 5 seconds confirmed in official data sheets 051105-03 and 051150-06. These ratings apply to both the 105Ah and 150Ah models.

Which Capacity Is Right for Your Ranger EV?

Kit B-3171 |

105Ah Skinny		 Energy: 5,376Wh  |  Range: Up to 45 miles*  |  Weight: 113 lbs

Recommended for: Weekend hunting, light farm work, properties under 15 miles daily.

Discharge temperature: Down to -20F.
Kit B-3180 |

150Ah		 Energy: 7,680Wh  |  Range: Up to 65 miles*  |  Weight: 165 lbs

Recommended for: Daily farm and ranch use, regular towing and hauling, high-mileage routes.

Discharge temperature: Down to -4F.

*Range estimates are under ideal conditions: flat terrain, single occupant, 12-15 mph, fully charged, 70F. Actual range varies based on terrain, payload, speed, temperature, and driving habits.

Vehicle Compatibility

Compatible vehicles: Polaris Ranger EV (lead-acid, 2010-2021) and Polaris Ranger EV Li-Ion (2016-2021), including Mid-Size and 2-Seat variants. The included Polaris Ranger EV-specific mounting kit (A-8172) fits all compatible model years without modification. The Sevcon motor controller does not require reprogramming.

What Changes After Switching from Lead-Acid to Lithium

  • No maintenance: LiFePO4 batteries do not require water refilling, produce no acid fumes, and do not corrode terminals. The factory lead-acid pack requires monthly water level checks to avoid cell damage.
  • Weight reduction: The factory lead-acid pack weighs approximately 650-700 lbs across eight batteries. The 105Ah lithium unit weighs 113 lbs. The 150Ah unit weighs 165 lbs.
  • Usable capacity: Lead-acid batteries are typically discharged to 50% depth to preserve cell life. LiFePO4 cells can be discharged to approximately 95% depth, delivering more usable energy from the same rated capacity.
  • Cycle life: LiFePO4 cells are rated for 2,000-3,000 charge cycles at 80% depth of discharge, compared to approximately 300-500 cycles for flooded lead-acid batteries.
  • Partial charging: LiFePO4 chemistry has no memory effect. The battery can be charged to any level at any time without affecting long-term capacity.
  • Cold weather charging protection: The GEN3 BMS automatically disables charging when battery temperature drops below 32F to prevent cell damage. Built into both models.
  • Silent operation: No lead-acid equalization cycle noise. Relevant for hunting, livestock environments, and noise-sensitive use.

About Eco Battery

Eco Battery is manufactured by ECO Capital, headquartered in Saint George, Utah. The GEN3 battery line uses Grade-A LiFePO4 prismatic cells, a proprietary BMS with Bluetooth and CAN communication, and over-the-air firmware update capability. Eco Battery products are sold through authorized resellers across the United States.

Warranty Summary

The Eco Battery GEN3 is covered by a Limited Lifetime Warranty. Registration at ecobattery.com is required within 60 days of purchase for full coverage. Key terms: free repair or replacement for the first 6 years; replacement at 50% of MSRP from years 6 through 9; replacement at 75% of MSRP from years 9 through 12. Batteries not registered within 60 days are covered for 1 year only. See the Warranty tab for complete terms and conditions.

Features

Battery Management System

  • Proprietary GEN3 BMS developed by Eco Battery (ECO Capital), Saint George, Utah
  • 250A maximum continuous discharge confirmed in data sheets 051105-03 and 051150-06
  • 600A peak discharge at 5 seconds meets the Polaris Ranger EV motor peak demand
  • 550A discharge at 10 seconds
  • Over-the-air (OTA) firmware updates via Bluetooth and Eco Battery mobile app
  • CAN communication compatible with CAN-enabled chargers and motor controllers
  • Auto charger wake-up battery activates when charger is connected
  • IP67-rated BMS enclosure dustproof and water-resistant to 1 meter

Safety Features

  • LiFePO4 (Lithium Iron Phosphate) chemistry thermally stable lithium chemistry
  • Charging freeze protection: charging automatically disabled below 32F standard on both models
  • Pack over-voltage and under-voltage protection
  • Cell-level over-voltage, under-voltage, and over-temperature protection
  • BMS over-temperature cutoff
  • Short circuit and over-current protection
  • Active cell balancing
  • Powder coated steel enclosure
  • Certifications: UN38.3, UL1642 Cell

Installation

  • Vehicle-specific mounting kit (A-8172) included designed for Polaris Ranger EV chassis
  • No rewiring required
  • No Sevcon controller reprogramming required
  • The included A-1055 CAN charger replaces the factory Delta Q QuiQ charger
  • Replaces all eight factory lead-acid batteries with a single unit
  • M8 female terminals torque specification: 6 ft/lbs (72 in/lbs)
  • Parallel connectable: up to 2 units can be connected in parallel
  • Series connectable: No

Kit Contents | B-3171 (105Ah Skinny)

Part Number Item
A-051105-03 51.2V 105Ah Skinny LiFePO4 Battery GEN3
A-1055 38V-51V 15A CAN Charger
A-3102 LCD State of Charge Meter
A-4012 Eco Battery Charge Port / Club Car DS / 110V Plug  Quick Connect Plug
A-8013 Battery Flange Supports Narrow (for 105Ah Skinny width)
A-8172 Eco Battery Mounting Kit Polaris Ranger EV specific
A-4220 Remote Button Battery Wake Up Kit

Kit Contents | B-3180 (150Ah)

Part Number Item
A-051150-06 51.2V 150Ah LiFePO4 Battery GEN3
A-1055 38V-51V 15A CAN Charger
A-3102 LCD State of Charge Meter
A-4012 Eco Battery Charge Port / Club Car DS / 110V Plug Quick Connect Plug
A-8016 Battery Flange Supports Wide (for 150Ah width)
A-8172 Eco Battery Mounting Kit Polaris Ranger EV specific
A-4220 Remote Button Battery Wake Up Kit

Note: The 48V-to-12V DC converter is not included in either kit. The Polaris Ranger EV has a factory Sevcon DC-DC converter that powers 12V accessories. If your configuration requires an external DC converter, this is available separately.

Tech Specs

All specifications are sourced directly from official Eco Battery GEN3 data sheets, part numbers 051105-03 (105Ah Skinny) and 051150-06 (150Ah).

General
Specification 105Ah Skinny  150Ah 
Nominal Voltage 51.2V 51.2V
Compatible System Voltage 48V (Polaris Ranger EV) 48V (Polaris Ranger EV)
Working Voltage 43.2V - 58.4V 43.2V - 58.4V
Recommended Voltage 48.0V - 57.0V 48.0V - 57.0V
Nominal Capacity 105Ah 150Ah
Energy 5,376Wh (5.38 kWh) 7,680Wh (7.68 kWh)
Reserve @ 25A 252 minutes 360 minutes
Cell Count 16 16
Cell Configuration 1P16S 2P16S
Self Discharge 1% per month 1% per month
IP Rating (BMS) IP67 IP67
BMS Proprietary Eco Battery Proprietary Eco Battery
Discharging
Specification 105Ah Skinny 150Ah
Max Continuous Discharge 250A 250A
Max Discharge 5 Seconds 600A 600A
Max Discharge 10 Seconds 550A 550A
Recommended Voltage Cutoff 48.0V 48.0V
BMS Voltage Recovery 46.4V 46.4V
Discharge Temperature Range -20F to 140F -4F to 140F
Charging
Specification 105Ah Skinny 150Ah
Auto Charger Wake-Up Yes Yes
Max Continuous Charge Below 52A Below 52A
Max Charge 30 Seconds 200A 200A
Bulk / Absorb Voltage 57.0V 57.0V
Float Voltage 54.0V or Off 54.0V or Off
BMS High Voltage Cutoff 59.2V 59.2V
Charging Temperature Range 32F to 130F 32F to 130F
Charging Freeze Protection Yes auto cutoff below 32F Yes auto cutoff below 32F
Physical
Specification 105Ah Skinny 150Ah
Dimensions (L x W x H) 22" x 9.75" x 10.43" 22" x 12.125" x 10.625"
Weight 113 lbs (51.25 kg) 165 lbs (74.84 kg)
Cell Chemistry Lithium Iron Phosphate (LiFePO4) Lithium Iron Phosphate (LiFePO4)
Cell Type Prismatic Prismatic
Terminal Type M8 Female M8 Female
Terminal Torque Spec 6 ft/lbs (72 in/lbs) 6 ft/lbs (72 in/lbs)
Shell Type Powder Coated Steel Powder Coated Steel
Series Connectable No No
Parallel Connectable Yes, up to 2 units Yes, up to 2 units
UN Shipping Class UN 3480 UN 3480
Communication
Specification 105Ah Skinny 150Ah
Bluetooth Yes Yes
CAN Communication Yes Yes
Mobile App / PC Software Yes Yes
Software Updates Over-the-air (OTA) Over-the-air (OTA)
Certifications
Standard Scope Status
UN38.3 Transport safety testing Certified
UL1642 Cell level Certified

FAQs

The Eco Battery GEN3 51.2V lithium conversion kit replaces the factory lead-acid battery pack in the Polaris Ranger EV with a single LiFePO4 lithium battery. It is available in 105Ah (Kit B-3171) and 150Ah (Kit B-3180). Each kit includes the battery, a CAN charger, an LCD state-of-charge meter, a charge port, vehicle-specific mounting hardware, and a remote wake-up button. It is manufactured by ECO Capital, headquartered in Saint George, Utah.

This kit is compatible with the following Polaris Ranger EV models:

  • Polaris Ranger EV (lead-acid) 2010 through 2021
  • Polaris Ranger EV Li-Ion (factory lithium) 2016 through 2021
  • Polaris Mid-Size Ranger EV 2010 through 2015
  • Polaris 2-Seat Ranger EV 2016 through 2021

The included mounting kit (A-8172) is designed specifically for the Polaris Ranger EV chassis and fits all compatible model years without modification.

The Polaris Ranger EV uses a 30-horsepower, 48V three-phase AC motor. This is a constant-torque motor that draws continuous current across its full RPM range unlike a golf cart DC motor, which tapers current draw as speed increases. Under normal driving conditions, the Ranger EV draws approximately 150-230 amps continuously. During acceleration, hill climbs, or towing, peak draws can reach 300-400 amps for short periods.

A battery BMS rated below 200A continuous will trigger a protective shutdown under sustained load. The Eco Battery GEN3 BMS is rated at 250A continuous, 550A at 10 seconds, and 600A at 5 seconds confirmed in official data sheets.

Both models use the same GEN3 BMS with identical discharge ratings (250A continuous, 600A peak). The differences are:

  • Capacity: 105Ah = 5,376Wh | 150Ah = 7,680Wh.
  • Estimated range: 105Ah up to 45 miles | 150Ah up to 65 miles. Both under ideal conditions.
  • Weight: 105Ah = 113 lbs | 150Ah = 165 lbs.
  • Width: 105Ah (Skinny) = 9.75". 150Ah = 12.125". Verify your battery bay width before ordering.
  • Discharge temperature: 105Ah operates down to -20F | 150Ah operates down to -4F.
  • Flange supports: 105Ah kit uses narrow supports (A-8013). 150Ah kit uses wide supports (A-8016).

The 105Ah is suited for weekend use, light farm work, hunting, and properties under 15 miles daily.

The 150Ah is suited for daily operations, regular towing and hauling, and routes over 40 miles per day.

The Sevcon motor controller does not require reprogramming. The Eco Battery GEN3 is compatible with both the lead-acid and Li-Ion factory Sevcon controller variants out of the box.

The kit includes its own A-1055 38V-51V 15A CAN charger, which replaces the factory Delta Q QuiQ charger. No reprogramming is required the A-1055 is plug-and-play with the GEN3 battery.

If your charger is CAN-enabled: connect the CAN cable from the charger to one of the two CAN ports on the meter cable. The battery must be powered on indicated by the illuminated power button to accept a charge.

Both models include built-in cold weather charging protection. When the battery temperature is below 32F at the time the charger is connected, the BMS automatically prevents charging to protect the cells. Charging resumes automatically once the battery warms above 32F.

For discharging (driving), the 105Ah operates down to -20F. The 150Ah operates down to -4F. For use in climates where temperatures regularly drop below 0F, the 105Ah model has a wider operating range.

Yes. Both the 105Ah and 150Ah units are parallel-connectable, with a maximum of 2 units. Two 105Ah units in parallel provide 210Ah total capacity (10,752Wh). Two 150Ah units provide 300Ah total capacity (15,360Wh). Contact Eco Battery or contact us for guidance on dual-battery installation for your specific model year.

Installation time varies depending on the model year and installer experience. The process involves disconnecting and removing all eight factory lead-acid batteries, mounting the single lithium unit using the included A-8172 bracket and flange supports, connecting the CAN charger and meter, and installing the remote wake-up button. No rewiring and no controller reprogramming are required. Basic hand tools are sufficient.

It is recommended to download the Eco Battery mobile app and perform the initial firmware update via Bluetooth during first setup.

The Eco Battery GEN3 is covered by a Limited Lifetime Warranty from ECO Capital. Registration at ecobattery.com is required within 60 days of purchase for full coverage. Batteries not registered within 60 days are covered for 1 year only.

  • Years 0-6: Free repair or replacement at ECO Capital's discretion.
  • Years 6-9: Replacement available at 50% of ECO Capital's MSRP at time of claim.
  • Years 9-12: Replacement available at 75% of ECO Capital's MSRP at time of claim.

See the Warranty tab for complete terms and conditions.

The GEN3 BMS includes Bluetooth connectivity and is compatible with the Eco Battery mobile app. Firmware updates are delivered through the app directly to the battery no dealer visit or hardware return required. Eco Battery recommends connecting to the app and completing the initial firmware update during first installation.

Yes. The factory lithium-ion pack in the 2016-2021 Polaris Ranger EV Li-Ion degrades over time. Replacement through Polaris dealers is typically more expensive than a third-party lithium conversion kit. The Eco Battery GEN3 kit is compatible with the factory Li-Ion controller variant without reprogramming, and includes a Limited Lifetime Warranty with US-based support from ECO Capital.

The Eco Battery GEN3 uses the same LiFePO4 cell chemistry found in golf cart batteries, but the BMS specifications are different. A standard golf cart motor draws approximately 30-100A continuously. The Polaris Ranger EV motor draws 150-230A continuously and up to 400A at peak. Golf cart batteries with a BMS rated at 175A continuous or lower will trigger protective shutdowns under Ranger EV loads.

The Eco Battery GEN3 BMS is rated at 250A continuous and 600A peak confirmed in official data sheets. The kit also includes a Polaris Ranger EV-specific mounting bracket (A-8172), not a generic golf cart tray.

Shipping Notes
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SKU: 58295358136

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Reviewed in the United States on July 18, 2023
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LakeOfJudea
Fort Morgan, US
★★★★★ 3
Busted spring on one side....
Color: Black, Size: 28-70"W x 48-120"H (Pack of 1), Color: Black, Size: 28-70"W x 48-120"H (Pack of 1)
I would have given it five stars except for the fact that 1) the instructions that come with it are miserable so you will definitely want to refer to the photos they have in the advertisement here, and 2) it appears that one of the vertical poles has a busted spring and I literally had to stuff some socks underneath it to make it hold. Definitely an eyesore, so I'm not thrilled about that. With that being said, I'm in an apartment and I don't want to drill in the walls to hang a curtain rod. My sliding glass doors have a track that I was able to get brackets that fit over the track to hold a pole, but I had one window that I could not do that with. I thought this would be an interesting way to hang curtains without doing damage. I considered those sticky tape curtain rod holders, but I was reading a lot of bad reviews about them not holding or them taking the paint off upon removal. I figured this was the better option and it gave the room some nice aesthetics because my furniture is farmhouse white wood with black iron accents, so this blended really well with the aesthetics of the room. I know that most people who did reviews used this product as its advertised to be a room divider for privacy... So I figured this is a nice way to review using this product in a different way. I just really can't stand window blinds, as they look so commercial and industrial to me... I needed a way to make the space seem more homey. While this is working fine for me, the reality is I have white lace curtains, which don't weigh much. I don't know that I could recommend this product, even though it says it can support a bit of weight, with curtains that are too heavy. Some of that, in part, is due to the fact that one of my springs is broken so it's not very stable as it is. However, even if I was not having the issue with the spring being busted on one side, I still don't think this would be good with heavy curtains (especially if you like opening your curtains frequently). It did come with curtain hooks if you have the kind of curtains that allow you to use hooks to hang them. I do not. My curtains just slide onto the pole. If they were the type that could be put up with hooks then opening and closing them would probably be easier and maybe not as big of a deal as it is for me with the type of curtains I have. I cannot comment on longevity as I just installed it today... If anything changes I will try to remember to come back and modify this review.
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Reviewed in the United States on July 6, 2025
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Autumm Caines
Birmingham, US
★★★★★ 5
Easy setup works well
Color: Black, Size: 28-70"W x 48-120"H (Pack of 1)
I love these! Have bought two so far. Easy set up and no damage to walls. Room divider or window curtains. Works great!!
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Reviewed in the United States on January 6, 2026
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Chris Stockbridge
West Palm Beach, US
★★★★★ 5
Worth the investment
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Reviewed in the United States on February 19, 2026
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Interloper
Battle Creek, US
★★★★★ 1
You Get What You Pay For! A Piece Of Junk!
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Flimsy and a piece of junk. Don’t waste your money. Assembly is a pain because it is so flimsy. Divider is thin. You can see right through it. Very wobbly.
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