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Drop-in conversion kits

OE Lithium Conversion Kits

Complete lead-acid to lithium conversions built for one specific cart. Every kit ships with the pack, the OE-fit bracket, the harness, the matched charger and the BMS already paired — no fabrication, no guesswork, no parts list to assemble yourself.

  • Everything in one box — pack, bracket, harness, charger
  • Built to OE mounting points for your exact make and model
  • 36V, 48V and 72V systems
  • 10-year Promise series warranty, ships from the USA
Shop conversion kits Find my kit
1 Box, complete conversion
300A Continuous discharge
10 yr Promise series warranty
Drop in Lithium Conversion Kits
48V Most popular kit
  • Complete kit, no extra parts
  • OE bracket fitment
  • Matched lithium charger
  • US-based support
  • Ships from the USA
1

Confirm your vehicle

Pick your make, model and year in the fitment finder. We only show kits with brackets verified for that build.

2

Pick your voltage and range

Stay with your cart's system voltage, then size the pack to how far you actually drive. Most owners land on 105Ah.

3

Install in an afternoon

The bracket, harness, charger and BMS arrive pre-matched. Most conversions take a few hours with hand tools.
View as
Verified fitment

Which kit fits my vehicle?

Pick your make, model and year. We show only the kits with brackets and harnesses confirmed for that build — and tell you plainly when something does not fit.

  • EZGO
  • Club Car
  • Yamaha
  • Icon
  • Advanced EV
  • Textron
  • Polaris

Vehicle not listed? Send us the model and year and our team will confirm the right kit before you order.

Buyer questions

Conversion kit FAQ

What comes in a conversion kit?
Every kit ships complete: the LiFePO4 pack, the OE-fit mounting bracket, the wiring harness, a matched lithium charger and the integrated BMS. You do not need to source anything else to finish the conversion.
Do I need to change my controller?
Most drop-in conversions run fine on the factory controller. If your build needs a controller change or a DC-DC converter for the accessory circuit, it is called out on that kit's product page before you buy.
Will it bolt to my existing battery tray?
Yes — kits are built to the OE mounting points for the make, model and year listed. Use the fitment finder on this page to confirm your exact build.
How long does the install take?
Most conversions take an afternoon with hand tools. There is no fabrication and no custom wiring; the harness and bracket are pre-matched to the vehicle.
Can I reuse my old charger?
No. Lead-acid chargers do not follow a lithium charge profile and will not charge the pack to spec. A matched Fleet Lithium charger is included in every kit.
What warranty comes with a kit?
Promise series packs carry a 10-year warranty with 5,000+ cycles at 80% depth of discharge, plus US-based support. Every kit ships from our US warehouse.
Talk to a fitment specialist

Trending Best Sellers

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Let customers speak for us

from 456 reviews
Fleet Lithium 51 Volt Battery Bundle for Polaris Ranger EV (2010–2024)
Corey F.
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

Fleet Lithium 51 Volt Battery Bundle for Polaris Ranger EV (2010–2024)
76.8V 105Ah Fleet Lithium Battery — NexGen BMS
Anonymous
GREAT

GREAT SERVICE

76.8V 105Ah Fleet Lithium Battery — NexGen BMS
Fleet Lithium 51 Volt Battery Bundle for Polaris Ranger EV (2010–2024)
Randy E.
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!

Fleet Lithium 51 Volt Battery Bundle for Polaris Ranger EV (2010–2024)
12V DC Voltage Reducer — 30A
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.

12V DC Voltage Reducer — 30A
58.4V 18A On-board LiFePO4 Charger (CH5618)
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)
Fleet Lithium 51 Volt Battery Bundle for Polaris Ranger EV (2010–2024)
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.

Fleet Lithium 51 Volt Battery Bundle for Polaris Ranger EV (2010–2024)
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.

58.4V 18A On-board LiFePO4 Charger (CH5618)
Lee L.
Easy installation and great technical support

Easy installation and great technical support.

Fleet Lithium - High Performance Lithium Batteries
Club Car Precedent / Tempo / DS (2008.5-2021) 48V Lithium Battery Conversion Kit — Fleet Lithium
Owen F.
Responsive performance after installation — Club Car 48V kit

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.

Club Car Precedent / Tempo / DS (2008.5-2021) 48V Lithium Battery Conversion Kit — Fleet Lithium
4 AWG Battery Cable Set (Pair)
Frank K.
Cabels look great

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

4 AWG Battery Cable Set (Pair)
BlueMax Marine 12V 195Ah LiFePO4 Deep Cycle Battery (Group 27)
Parker A.
Reliable marine power from the BlueMax 200Ah marine battery — BlueMax 200Ah marine battery

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.

BlueMax Marine 12V 195Ah LiFePO4 Deep Cycle Battery (Group 27)
Duplicate - EZGO TXT (2010-2021) (48V) Fleet Lithium Conversion Kit
Erica X.
Straightforward upgrade with the EZGO TXT kit — EZGO TXT kit

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.

Duplicate - EZGO TXT (2010-2021) (48V) Fleet Lithium Conversion Kit
87.6V 13A On-board LiFePO4 Charger (CH8713)
Bennett T.
Simple replacement charger — 76V replacement charger

The 76V replacement charger replaced the previous unit without requiring a complicated setup. Charging has been predictable, and the connector fits securely.

87.6V 13A On-board LiFePO4 Charger (CH8713)
58.4V 18A On-board LiFePO4 Charger (CH5618)
Ethan I.
Secure connection and steady charging — 51V replacement charger

The plug on the 51V replacement charger seats firmly and the unit maintains a normal charging cycle. The battery has been ready for use each time charging is complete.

58.4V 18A On-board LiFePO4 Charger (CH5618)
Duplicate - EZGO RXV (2008-2021) (48V) Fleet Lithium Conversion Kit
Savannah R.
Straightforward upgrade with the EZGO RXV kit — EZGO RXV kit

The parts for the EZGO RXV 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.

Duplicate - EZGO RXV (2008-2021) (48V) Fleet Lithium Conversion Kit