Yamaha UMAX Range Picker 2018-2025 48V Fleet Lithium Conversion Kit
Yamaha UMAX Range Picker 2018-2025 48V Fleet Lithium Conversion Kit - 65Ahis backordered and will ship as soon as it is back in stock.
Yamaha UMAX Range Picker 2018-2025 48V Fleet Lithium Conversion Kit
Yamaha installation manual and conversion guide
Confirm your exact model, serial number and original battery system with Fleet before ordering. The Bistro or Range Picker name alone does not establish 48V lead-acid electric fitment. Gas/EFI and factory-lithium variants are excluded from this manual.
Download the Passenger / Utility 48V installation manual (PDF)
Read the Yamaha lithium conversion guide · Browse installation downloads
The 210Ah option uses two matched 105Ah packs in parallel at 51.2V nominal. Use the approved harness, protection and matching procedure.
Drop-in lithium conversion kit for the Yamaha UMAX Range Picker 2018-2025 48V system. Replaces the factory lead-acid battery pack with a purpose-built Fleet Lithium bundle sized for your vehicle's tray and electrical demands.
What's Included
- Fleet Lithium 48V battery pack — choose 65Ah, 105Ah, 168Ah, 210Ah
- Vehicle-specific bracket kit matched to the factory tray
- Matched lithium charger with OEM-style plug
- Hardware and wiring adapters required for installation
Fitment & Compatibility
- Vehicle: Yamaha UMAX Range Picker 2018-2025 48V
- Factory battery config: Verify the exact lead-acid electric variant and complete bank before ordering.
- Vehicle class: UTV / Utility EV
Controller / Electrical Note: Use the factory voltage, battery layout and observable controller/charger labels shown in this branch. Verify the exact controller and installed calibration for the selected battery. Preserve normal braking and protection settings; any required changes must use an approved vehicle-specific specification.
Modification Required: Ships with a vehicle-specific bracket kit, matched to your factory tray — no frame drilling required.
Fitment Notes: Obtain a model/serial fitment check before ordering; the family name and year range do not establish battery chemistry or propulsion type.
Why Fleet Lithium
- 10-year warranty on Promise-series packs
- Bluetooth-enabled NexGen BMS with 300A continuous / 800A peak surge discharge
- Heated cold-weather operation and CAN/RS485 communication support
- Ships from the USA; shipping calculated at checkout
Quick answer: the Yamaha UMAX Range Picker 2018-2025 48V Fleet Lithium Conversion Kit from Fleet Lithium has nominal voltage 51.2V, capacity 65 AH, continuous / peak discharge 300A continuous / 800A peak surge, cycle life 5,000+ cycles at 80% Depth of Discharge (DoD), cell chemistry Lithium iron phosphate (LiFePO4), warranty 10 Year Warranty. The complete specification table for this configuration is below.
Electrical & Performance
- Nominal Voltage
- Capacity
- Nominal Energy
- Continuous / Peak Discharge
- Charging Voltage
- Charging Current
- Discharge Cutoff Voltage
- Cycle Life
Battery & BMS
- Cell Chemistry
- Battery Type
- EV Battery Type
- BMS Features
- 300A Continuous / 800A Peak Surge Discharge , Advanced Battery Management System (BMS) , Internal Heating for Cold Temp Charging , Active Cell Balancing for Extended Life Cycle , Built in Fire Extinguisher for Ultimate Safety
- Safety Features
- Thermal Regulation (Heated Cells) , Low Voltage Disconnect (LVD) , Over Charge / Discharge Protection , Over Current Protection
- Battery Features
- EV Battery Features
- Operating Temperature
- Charging: 32 to 140 ºF (0 to 60 ºC) , Discharging: -4 to 149 ºF (-20 to 65 ºC) , Storage: 50 to 113 ºF (10 to 45 ºC)
Dimensions & Weight
- Dimensions (L x W x H)
- Weight
- 85.0 lb
Fitment & Compatibility
- Make
- Model
- Model Year
- 2018 , 2019 , 2020 , 2021 , 2022 , 2023 , 2024 , 2025
- Model Number
Warranty & Compliance
- Warranty
- Certifications & Standards
- UL 1642, UL 1973, CE, RoHS, UN 38.3, IP67
- Condition
- Manufacturer Relationship
Product Details
- Classification
- Colour / Finish
- Vendor
- Fleet Lithium
- Product Type
- Lithium Battery Conversion Kit
- SKU
- KIT-YAMAHA-umaxrangepicker-48-65-UMX
Let customers speak for us
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.
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.
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.
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
GREAT SERVICE
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!
The 12V voltage reducer corrected the unstable behavior that had affected the lights and other accessories. The output has remained steady through regular use.
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.
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.
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.
Easy installation and great technical support.
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.
Cabels look great. Will be installing them by the end of the week. Frank
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.
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.
