36V Marine Lithium Batteries

Maximize Your Power with Premium 36V Lithium Batteries

Traditional 36-volt systems can become a collection of heavy cases, jumper cables and corrosion-prone terminals. Marine trolling-motor banks commonly create 36V by wiring three 12V lead-acid batteries in series, while many classic golf carts use six 6V batteries or another multi-battery configuration. Either approach occupies valuable space, adds substantial weight and allows system voltage to decline as the bank discharges.

Epoch 36V lithium batteries consolidate that power into a native-voltage LiFePO4 platform. A correctly sized 36V LiFePO4 battery provides lighter, maintenance-free deep-cycle energy, a flatter discharge curve and integrated Battery Management System protection. The result is a cleaner installation for compatible trolling motors, golf carts, off-grid systems and specialized 36V equipment.

The current Epoch collection includes a compact 36V 50Ah battery for marine and off-grid use, a higher-capacity 36V 100Ah battery, and a purpose-built 36V 105Ah golf cart conversion kit. Current models are rated for 3,500 or more cycles, with the 50Ah model rated for 4,000 or more cycles, and every battery presently shown in the collection carries an 11-year manufacturer warranty.

The Power of One: Replace a Multi-Battery 36V Bank

Replacing three 12V batteries with one 36V battery can simplify a compatible marine system dramatically. A native-voltage pack also offers similar advantages when replacing the larger lead-acid bank found in a 36V golf cart:

• Remove significant battery weight: Group 31 lead-acid and AGM batteries commonly weigh about 58 to 69 pounds each, placing a three-battery bank around 175 to 207 pounds before cables and trays. Epoch's 36V 50Ah lithium battery weighs approximately 35 pounds, while the 36V 100Ah model weighs approximately 75 pounds. Depending on the old bank and the replacement capacity, the conversion can remove well over 100 pounds from a boat or vehicle.
• Reclaim storage space: A single 36V case can free two battery locations in a boat's rigging compartment. A purpose-built golf cart pack can also simplify the space beneath the seat, leaving fewer individual cases and hold-downs to inspect.
• Eliminate external series jumpers: A native 36V battery connects through its main positive and negative terminals, removing the inter-battery jumpers used in a three-battery 12V series bank. Fewer exposed connections can simplify installation and reduce potential corrosion, resistance and troubleshooting points.
• Keep the pack under one BMS: One internal Battery Management System monitors the complete 36V pack. In a bank made from three separate 12V lithium batteries, each battery has its own BMS and the units can drift apart if they differ in model, age, capacity or state of charge.
• Use more of the rated energy: Lead-acid banks are commonly planned around approximately 50% depth of discharge to protect cycle life. LiFePO4 supports much deeper cycling within the limits of the selected battery, while maintaining steadier voltage through most of the usable capacity.

36V LiFePO4 vs. Lead-Acid Voltage Discharge Curve

The representative graph below illustrates why a 36V lithium battery can keep a compatible motor feeling more responsive later in the day. A 38.4V-nominal LiFePO4 pack stays near its working voltage through most of the discharge, while a 36V lead-acid bank made from three 12V batteries declines more progressively as stored capacity is used.

Top Applications for 36-Volt Lithium Power

High-Thrust Trolling Motors

A 36V lithium trolling motor battery is a strong choice for compatible high-thrust systems on tournament bass boats, bay boats and offshore center consoles. Current 36V-capable platforms include selected Minn Kota Ultrex and QUEST models, Garmin Force, Lowrance Ghost and Power-Pole MOVE systems. GPS anchoring and heavy wind or current can create sustained demand, making battery voltage, usable energy and continuous-output capability especially important.

Compatibility depends on electrical specifications, not brand name alone. Confirm the motor's required voltage and maximum current, then match the battery's continuous output, breaker, cable gauge, connectors and charger to the manufacturer's guidance. A flat LiFePO4 discharge curve helps maintain steadier voltage, but it cannot guarantee all-day runtime under every speed setting or condition.

36V Golf Carts

A 36V lithium golf cart battery can transform many older and classic carts, including compatible EZGO TXT and Club Car DS configurations. Epoch's 36V 105Ah golf cart kit includes the LiFePO4 battery, a 36V lithium charger, dashboard battery gauge and 12V converter, with cart-specific configuration options shown on the product page.

Battery voltage must match the cart's electrical architecture. A 36V battery is not a proper substitute for a 48V battery, and a 48V battery must not be installed in a 36V cart without a complete, correctly engineered conversion. Verify the motor, controller, solenoid, charger, wiring, accessory voltage and regenerative-braking requirements before beginning an EZGO 36V lithium upgrade or another cart conversion.

Off-Grid and Specialized 36V Equipment

A 36V deep cycle battery can also support compatible solar, backup, mobile and industrial equipment built around a 36V DC bus. Because 36V is less common than 12V, 24V or 48V in some markets, confirm that the inverter, solar charge controller, DC converter and charger support the battery's operating and charging range. Size cables, disconnects and overcurrent protection for the application's maximum current.

Sizing Your 36V System: 50Ah, 100Ah or 105Ah?

36V 50Ah: Maximum Weight and Space Savings

Epoch's 36V 50Ah Essential Series battery stores 1.92kWh, weighs approximately 35 pounds and supports 100A continuous discharge. A 36V 50Ah lithium battery holds about the same planned usable energy as three 12V 100Ah lead-acid batteries when that lead-acid bank is limited to roughly 50% depth of discharge. It is a compelling lightweight option for compatible trolling motors and other systems whose current and runtime requirements fit its ratings.

36V 100Ah: Extended Marine and Off-Grid Runtime

The 36V 100Ah lithium battery doubles stored energy to 3.84kWh and supports 120A continuous discharge. At approximately 75 pounds, it is intended for applications that need longer runtime, greater reserve or a larger daily energy budget. The model supports parallel expansion within Epoch's published limits, but matched batteries, balanced cabling, correct fusing and an appropriately sized charger are essential.

36V 105Ah: Purpose-Built Golf Cart Performance

The 105Ah golf cart battery weighs approximately 81 pounds and delivers 200A continuous discharge, with substantially higher short-duration peak output for acceleration, hill climbing and regenerative charging. This is the collection's cart-focused solution. Actual driving range varies with vehicle weight, passenger load, tire diameter, lift height, terrain, speed, controller settings and driving style.

Epoch Premium Engineering: Built to Outlast

• Smart Bluetooth monitoring: Every current 36V model includes app connectivity for viewing model-specific information such as state of charge, voltage, current, temperature and battery status from a compatible iOS or Android device.
• Internal heating on select models: The current 36V 50Ah and 100Ah batteries include internal heating to support safe charging in cold conditions. Heating is not listed as a feature of the current 105Ah golf cart kit, so always check the exact product specifications.
• Advanced BMS protection: The integrated Battery Management System provides model-specific protection against conditions such as overcharge, excessive discharge, overcurrent, short circuits and unsafe temperatures.
• Rugged, application-specific enclosures: The 36V 50Ah model is IP65 rated for dust and water-jet resistance. The current 36V 100Ah marine battery and 105Ah golf cart kit are IP67 rated. An IP rating does not replace secure mounting, protected terminals or proper installation, and no battery should be left where water can pool around its cables or connections.
• 11-year manufacturer warranty: Every model presently listed in the Epoch 36V collection carries an 11-year warranty, with cycle-life and operating specifications that vary by product.