The Bolt Energy 51.2V 105Ah "Square" is a complete LiFePO4 lithium battery conversion kit designed specifically for the EZGO RXV 48V electric golf cart (2008 and newer). It replaces the entire lead-acid battery bank with a single 100.8 lb lithium unit, is available in Standard and Professional kit configurations, and is sold by Lithium Battery Supply as an authorized Bolt Energy dealer with full 12-year warranty coverage.

If your EZGO RXV is running on lead-acid batteries, you already know the signs it's time to upgrade: slower performance as the charge drops, batteries that need watering every few weeks, a pack that weighs close to 400 pounds, and a charge routine that takes all night. This kit fixes all of that in one swap.

One battery replaces the entire lead-acid bank. The Professional Kit includes everything needed for a complete conversion battery, charger, solenoid, cables, SOC meter, voltage reducer, mounting hardware, and more. Nothing else to source separately.

What changes after the conversion:

• 20–50 miles of range per charge actual mileage depends on terrain, load, speed, and accessories
• Consistent power from full to nearly empty LiFePO4 holds voltage flat, so your cart doesn't slow down as the charge drops
• ~300 lbs lighter than a full lead-acid bank better handling, less stress on tires and frame
• No more watering, no equalization, no acid cleanup
• Charges in roughly 2 - 4 hours on a standard 110V outlet with the included high-speed charger
• Monitor charge level from your phone via the included Bluetooth receiver and Bolt Energy app
• 12-year warranty 6 years full replacement, 6 years prorated, now fully transferable to a new owner

We are an authorized Bolt Energy dealer. Every battery sold through Lithium Battery Supply is eligible for Bolt's full 12-year warranty. Purchases from unauthorized sellers are explicitly excluded from warranty coverage under Bolt's warranty terms buying from an authorized dealer protects your investment from day one.

Is This Right for My RXV

The most common question we get from RXV owners before buying: "Will this actually fit, and is there anything else I need?" Here's a straight answer.

Fitment

The Bolt Energy 51.2V 105Ah "Square" (BE10551M) is designed for and compatible with the EZGO RXV 48V electric golf cart, model years 2008 and newer. It is Bolt Energy's officially published 105Ah fit for the RXV listed on their manufacturer fitment chart specifically for this model. Unlike some batteries that require a tray-specific profile, the Suqare uses a bracket-mount system: the battery bolts to the floor of the compartment using the included mounting hardware. This means it is compatible with both RXV configurations:

• Plastic tray RXV (most common) bracket mounts cleanly, straightforward install
• Metal tray RXV same bracket-mount approach, same battery, no tray swap required

The Square's dimensions are 12.8″ L × 12.01″ W × 10.42″ H and it weighs 100.8 lbs.

Controller Compatibility

The Bolt Mini is compatible with the stock Curtis and Danaher 48V controllers found in most EZGO RXV models. It does not require a CAN adapter, controller modification, or special wiring for a standard stock-controller RXV. If your cart has been converted to an aftermarket AC motor system or uses a non-standard controller, contact us before ordering and we'll confirm compatibility.

What's Included - Professional Kit (14 items)

• 51.2V 105Ah LiFePO4 battery (BE10551M)
• Bluetooth receiver
• Smart SOC state-of-charge dash meter
• Waterproof high-speed lithium charger
• 400A heavy-duty solenoid
• 30A voltage reducer
• 2 × 40″ 2AWG premium installation cables
• AC hardwire port with DECO cover plate (universal or Club Car fit)
• Mounting bracket, nuts, and bolts
• 6 × 3/8″ battery ring terminal connectors
• 15ft 12-AWG lighted extension cord
• 10 × tie straps
• Lead battery removal strap
• Owner's manual with installation instructions

Do you need the Professional Kit or the Standard Kit? For the RXV, we recommend the Professional Kit. It includes the solenoid, which should be replaced during the conversion lithium delivers instantaneous current that exceeds what an aging lead-acid-era solenoid was designed to handle. The Professional Kit also includes the correct cables and voltage reducer, so the install is complete without sourcing additional parts.

What You'll Need to Do Yourself

• Remove the existing lead-acid batteries (the included removal strap helps)
• Install the bracket and mount the battery
• Connect the cables, solenoid, reducer, and charger port per the included instructions
• Register the battery at boltenergyusa.com within 30 days of purchase to activate the full 12-year warranty

Most owners complete this in 2–4 hours with basic hand tools. Bolt Energy provides installation videos at boltenergyusa.com. If you'd prefer a shop to handle it, use Bolt's dealer locator to find a local installer.

Features

• LiFePO4 Prismatic Cell Chemistry
  Lithium Iron Phosphate is the most thermally stable lithium chemistry available it does not overheat, does not off-gas, and requires no ventilation. Prismatic cells are flat and stacked, giving the Mini its compact square profile and contributing to consistent output across the full discharge cycle.
• Flat Voltage Curve
  Lead-acid voltage sags as the battery discharges your cart slows on hills and feels sluggish in the last quarter of charge. LiFePO4 holds voltage essentially flat from full charge to nearly empty. Your RXV performs the same whether the battery is at 90% or 15%.
• Smart BMS Protection
  The onboard Battery Management System monitors voltage, current, and temperature in real time. It protects against overcharge (cuts off at 58.5V), over-discharge (cuts off at 40V), and overcurrent (260A sustained / 520A peak for 30 seconds). If a protection event triggers, the BMS disconnects automatically and reconnects when conditions return to normal. No manual reset required.
• Bluetooth Monitoring
  The included Bluetooth receiver pairs with the Bolt Energy app on your phone. Check state of charge, voltage, and battery health in real time without opening the compartment. The dash-mounted SOC meter gives you a quick visual read while driving.
• CAN Diagnostic Port
  A CAN port is built into the battery for technician-level diagnostics and testing. This is for reading detailed cell-level data it is not required for controller communication on a standard RXV and does not require a CAN adapter during installation.
• IP66-Rated Powder Coated Steel Enclosure
  The case is designed to IP66 standard protected against powerful water jets from any direction. Relevant for carts that are washed regularly, exposed to rain, or used in wet conditions on the course or in a neighborhood setting.
• 400A Heavy-Duty Solenoid (Professional Kit)
  The Professional Kit includes a 400A solenoid sized for lithium systems. Replacing the factory solenoid during conversion is the right call lithium delivers current faster and more aggressively than lead-acid, and an aging solenoid is a common failure point after conversion.
• 30A Voltage Reducer (Professional Kit)
  Steps 48V down to 12V to power your RXV's accessories lights, horn, USB ports, and any add-ons. The 30A unit included in the Professional Kit handles standard accessory loads cleanly.
• Waterproof High-Speed Lithium Charger
  Lithium-specific, waterproof rated, and included in both kit options. Plugs into a standard 110V household outlet and connects via the hardwired AC port installed in the cart. Do not use your existing lead-acid charger it uses a different charge profile and will damage a lithium battery.
• Heated Option Available
  A heated version of the Mini is available for owners in colder climates. The standard battery should not be charged below 34°F (0°C). If your cart is stored outdoors in winter or regularly used in cold conditions, select the heated configuration.
• Bracket-Mount Installation
  The Mini installs using the included brackets bolted to the battery compartment floor no tray modification, no drilling into the battery itself. This is what makes it compatible with both plastic and metal tray RXV configurations.
• 12-Year Transferable Warranty
  Effective for 2026 purchases. Backed by Nivel Parts and Manufacturing 6 years full replacement, 6 years prorated. Now fully transferable to a subsequent owner when registered within 15 days of transfer. Lifetime technical support included at no charge.

Specifications

Complete technical specifications for the Bolt Energy 51.2V 105Ah "Square" (BE10551M) a LiFePO4 lithium golf cart battery designed for the EZGO RXV 48V system. All values sourced from the official Bolt Energy BE10551M data sheet and 2026 warranty document issued by Nivel Parts and Manufacturing.

FAQ

Common questions about the Bolt Energy 51.2V 105Ah "Square" (BE10551M) lithium battery conversion kit for the EZGO RXV 48V golf cart. All answers based on verified manufacturer specifications and official warranty documentation.