Tomberlin E-Merge 48V Lithium Battery Conversion Kit
Tomberlin E-Merge 48V Lithium Battery Conversion Kit - 51V 210Ah (Dual 105Ah)is backordered and will ship as soon as it is back in stock.
Tomberlin E-Merge 48V Lithium Battery Conversion Kit
A complete upgrade for your 48V E-Merge
More driving. Less battery upkeep.
Replace a compatible Tomberlin E-Merge’s 48V lead-acid bank with a matched Fleet Lithium battery, charger and installation kit. Choose 65Ah, 105Ah, 168Ah or paired 210Ah capacity, with a digital state-of-charge display and Fleet support to help you choose the right configuration.
Compare capacities · Check compatibility · Download installation manual
Why upgrade your Tomberlin to Fleet Lithium?
- Simpler routine care. No electrolyte top-ups or lead-acid equalization charging. Keep normal cable, mounting and charging checks in your maintenance routine.
- Capacity for the way you drive. Pick an energy reserve for neighborhood trips, golf, passengers and hills.
- Clear battery information. The matched SOC display and Bluetooth monitoring help you check charge level and battery status.
- A coordinated conversion. Battery, lithium charger, mounting parts and wiring are supplied as a vehicle-specific bundle.
- Support after the sale. Get help identifying your vehicle and installing the kit, with a 10-year golf cart/EV battery warranty under Fleet’s published terms.
Choose your Tomberlin lithium battery capacity
| Capacity | Battery arrangement | Nominal energy | Best suited to |
|---|---|---|---|
| 65Ah | One pack | 3.33 kWh | Confirmed stock vehicles with modest energy needs |
| 105Ah | One pack | 5.38 kWh | Everyday driving with regular charging |
| 168Ah | One pack | 8.60 kWh | More reserve in a single battery |
| 210Ah | Two matched 105Ah packs in parallel | 10.75 kWh | The largest energy reserve in this bundle range |
The 168Ah option stores 60% more nominal energy than 105Ah; 210Ah stores twice as much. Actual driving range varies with load, terrain, tires, speed, temperature and accessories. Capacity is not a speed upgrade. Modified motors and controllers need a specific compatibility check.
What is included in the E-Merge conversion bundle?
- Selected Fleet 51.2V NexGen LiFePO4 battery configuration
- CH5618 matched 58.4V / 18A lithium charger
- BR5139 Tomberlin mounting kit and hardware for the matched configuration
- AC0219 AC inlet and CB0917 main cable set
- Digital state-of-charge display
For 210Ah, confirm the approved dual-pack restraint, parallel harness and branch protection with your order. Check the existing accessory converter’s voltage range and load capacity separately; its replacement is not listed as standard bundle contents.
Tomberlin E-Merge model and year compatibility
This is a conversion for verified factory 48V lead-acid E-Merge vehicles with the matching mounting and electrical configuration. The E-Merge family is documented back to 2007. Coverage is not limited to 2025–2026, and a model year alone is not a fitment guarantee.
- Legacy E2, E4 and E6: check the actual voltage and battery bank. OEM documents include both six 8V and eight 6V arrangements for 48V systems.
- Shadowhawk and SE: confirm the lead-acid version and exact mounting configuration. Tomberlin’s 2024 SE sheet already includes eight 6V lead-acid batteries.
- LXR: request an individual configuration check. Tomberlin lists factory EVOLVE lithium as standard in its 2024 LXR specifications.
- Factory EVOLVE lithium, 72V and Engage/Ghosthawk: these systems are outside this lead-acid conversion procedure.
Before ordering, send Fleet support your model/year/serial label and clear photos of the complete battery compartment, controller and charger. We can help match the battery capacity, restraint and electrical interface. Read the detailed fitment guide and manufacturer references.
See a real Fleet Tomberlin installation
Plan the whole battery system
Your installation brings together the battery, restraint, charger, SOC display and vehicle circuits. The manual explains the order of work and includes the original-bank diagrams, accessory checks and an installation record.
Installation and charging: know before you start
Photograph and label the old wiring, follow your vehicle’s isolation procedure, remove the lead-acid bank, secure the Fleet system and install the matched charger and display. Then complete the manual’s pre-power, charging and low-speed test checks.
Charging routine: The current Fleet Tomberlin kit eliminates the original charger interlock. The vehicle may move while plugged in. Keep the key OFF while charging; disconnect and stow the AC cord before key ON.
Download the Tomberlin installation manual (PDF) · Read the conversion guide · Open the document library
Tomberlin lithium conversion FAQs
Can I convert my Tomberlin E-Merge from lead-acid to lithium?
Yes. A compatible factory 48V lead-acid E-Merge can use a matched Fleet 51.2V LiFePO4 kit. Confirm your original battery bank, controller, charger and mounting arrangement before ordering. Factory EVOLVE lithium and 72V systems require a different assessment.
Which Tomberlin model years does this kit cover?
The E-Merge 48V family is documented back to 2007; this guide is not limited to 2025–2026. Year alone does not confirm kit fitment. Check the exact vehicle configuration, including later Shadowhawk and SE versions. LXR models require particular care because factory EVOLVE lithium is documented as standard on the 2024 LXR.
Is a 51.2V lithium battery right for a 48V Tomberlin?
Fleet’s 51V product name refers to a 51.2V nominal LiFePO4 battery system for compatible 48V vehicles. The matched charger supplies 58.4V. Compatibility depends on the complete vehicle system, including the controller and accessory converter.
Which capacity should I choose: 65Ah, 105Ah, 168Ah or 210Ah?
Choose 65Ah for a confirmed stock motor/controller configuration with modest energy needs. Choose 105Ah for everyday use, 168Ah for more reserve in one pack, or 210Ah for two matched 105Ah packs in parallel. Passengers, hills, speed and accessories affect the reserve you need.
How far will my Tomberlin travel on lithium?
Range depends on the vehicle, terrain, passengers, tires, speed, temperature and accessories. The 168Ah option stores 60% more nominal energy than 105Ah; 210Ah stores twice as much. These energy comparisons are not guaranteed mileage increases.
Does the Tomberlin kit include the charger and mounting parts?
The main E-Merge bundle includes your selected Fleet battery configuration, CH5618 lithium charger, BR5139 mounting kit, AC0219 inlet, CB0917 cable set and digital SOC display. Confirm the restraint and supplied wiring for your exact vehicle and capacity, especially a dual-pack installation.
Can I keep the original lead-acid charger or battery gauge?
Use the matched lithium charger and supplied SOC display. The original lead-acid charging profile and voltage-based gauge are not suitable substitutes. Check the existing accessory converter separately; a 12V accessory must never receive full battery voltage.
Does this kit retain the charger drive-away interlock?
No. Fleet’s current Tomberlin kit eliminates the original charger interlock. The vehicle may move while plugged in. Keep the key OFF while charging, then disconnect and stow the AC cord before turning the key ON.
Can I install the conversion myself?
Use the downloadable Fleet installation manual and the instructions for your exact kit. Installation requires safe battery isolation, lifting, secure mounting, circuit identification and commissioning. If those tasks are outside your experience, use a qualified EV service provider.
What warranty comes with the Fleet battery?
Fleet’s golf cart and EV battery warranty is 10 years: five years of full coverage followed by five years of prorated coverage, subject to the published terms. Chargers and accessories have separate warranty terms.
Get your E-Merge ready for its next chapter
Choose the capacity that suits your driving, confirm the vehicle configuration and order the matched Fleet system. Keep the installation manual handy from the first connection to the first full charge.
Quick answer: the Tomberlin E-Merge 48V Lithium Battery Conversion Kit from Fleet Lithium has nominal voltage 51.2V, 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
- Factory Pack Voltage
- Continuous / Peak Discharge
- Charging Voltage
- Charging Current
- Discharge Cutoff Voltage
- Cycle Life
Battery & BMS
- Cell Chemistry
- Battery Type
- EV Battery Type
- BMS Features
- Advanced Battery Management System (BMS) , Internal Heating for Cold Temp Charging , Active Cell Balancing for Extended Life Cycle , Bluetooth Communication For battery monitoring
- 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
- 223.0 lb
Fitment & Compatibility
- Make
- Model
- Model Number
- Motor Controller
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
- TO5934
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.
