12V 460Ah V2 Elite Series LiFePO4 Battery (5.89kWh)
IP67BluetoothHeated
$2,399
In Stock
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Traditional lead-acid and AGM batteries add substantial weight to a boat, require careful charging and can deliver less voltage as the day progresses. Flooded batteries also bring water checks, acid residue and corrosion concerns into already cramped compartments. Epoch lithium marine batteries provide a cleaner, lighter LiFePO4 power solution for boaters who want dependable energy without the routine maintenance of a flooded lead-acid bank.
Built for demanding marine use, Epoch batteries combine lithium iron phosphate chemistry with an integrated Battery Management System and rugged, model-specific enclosures. They are suited to applications ranging from tournament bass boats, center consoles and flats boats to kayaks, sailboats, cruising yachts and offshore vessels.
Whether you need a lithium trolling motor battery , a marine lithium house battery or an approved lithium marine starting battery , begin by matching the battery to the voltage, current demand, capacity, charger and physical space of the complete system. For anglers comparing the best lithium battery for bass boats, the answer is not simply the largest option. It is the correctly specified battery for the motor, electronics and runtime you expect.
A deep cycle lithium marine battery can change how a boat performs and how confidently you use power throughout the day:
Voltage must match the equipment being powered. Never substitute a different-voltage battery without confirming that the trolling motor, electric propulsion system, charger, wiring, protection devices and connected electronics are designed for that voltage.
A 12V lithium marine battery is a versatile choice for many smaller trolling motors, kayaks and compact fishing boats. It can also serve as a dedicated house bank for fish finders, chartplotters, livewells, pumps, lights and marine audio. Choose amp-hour capacity by calculating the combined load and desired runtime rather than relying on boat size alone.
A 24V lithium trolling motor battery is commonly used on mid-sized bass boats, bay boats and other vessels with equipment designed for a 24V supply. Where voltage, capacity, discharge output, charger profile and fitment all match, one 24V battery can replace two 12V lead-acid batteries wired in series. This can reduce weight, free space and eliminate an interconnect cable from the bank.
A 36V lithium trolling motor battery is built for compatible high-thrust systems used by serious anglers and larger fishing boats. A single 36V pack can replace three 12V batteries in a traditional series bank when all specifications match, substantially simplifying wiring and reducing battery-compartment weight. Confirm the trolling motor manufacturer's voltage and current requirements before selecting capacity.
A 48V marine lithium battery is intended for properly engineered high-voltage applications, including compatible electric propulsion, advanced trolling systems and larger house or inverter installations. These systems require correctly rated controllers, chargers, cables, disconnects and overcurrent protection. Do not convert a lower-voltage system to 48V by changing the battery alone.
A deep-cycle battery is designed to supply steady energy over extended periods. Trolling motors, fish finders, livewells, navigation electronics, lighting and house loads typically belong on a deep-cycle bank. Capacity in amp-hours and watt-hours, continuous-discharge capability and expected runtime are central to choosing this type of battery.
A starting battery is designed to provide a brief, high-current burst to crank an engine. Do not use a standard deep-cycle lithium battery to start an outboard unless the product is specifically rated and approved for cranking service. The battery must satisfy the engine manufacturer's starting-current, charging-system and battery-type requirements, whether the outboard is made by Mercury, Yamaha, Suzuki or another manufacturer.
Epoch's dual-purpose lithium marine batteries are engineered to support both cranking and deep-cycle loads, using a BMS and internal architecture designed for high current. Before installation, verify the exact battery model against the outboard, alternator output, charger and accessory loads. A dual-purpose lithium marine battery rating does not make every battery universally compatible with every engine.
Marine installations face vibration, humidity, spray, temperature swings and limited ventilation. Epoch offers batteries with model-specific IP ratings, including select IP67 waterproof and dust-tight models as well as IP65 and IP54 options. Check the individual product rating and install the battery in accordance with its manual. An IP rating does not replace secure mounting, correct cable protection or good saltwater-corrosion practices.
Select heated models use internal heating to warm the cells before charging in below-freezing conditions. This helps protect LiFePO4 cells during cold-weather charging for early-spring anglers, late-season boaters and vessels stored in northern climates. Heating capability and operating temperature ranges vary by model.
Bluetooth-equipped models let you view information such as state of charge, voltage, current, temperature and battery status from a compatible phone. Selected Elite and Pro Series batteries also support Victron communications for compatible larger marine house systems, giving cruisers and yacht owners a more integrated view of charging and energy use.
Every Epoch marine battery includes an advanced BMS that monitors the pack and provides model-specific protection against conditions such as overcharge, excessive discharge, overcurrent, short circuits and unsafe temperatures. Many current marine models are backed by an 11-year manufacturer warranty, while collection-wide coverage is listed as up to 11 years and varies by model. Compare voltage, capacity, output, IP rating, communications and warranty before choosing the right Epoch LiFePO4 marine battery for your boat.
Side-by-side specs
Every battery in this collection uses LiFePO4 chemistry with a built-in battery management system (BMS). Compare stored energy, continuous output, weight, footprint, and price side by side.
20 models · Select a column heading to sort
| Model | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 460Ah | 5.89 kWh | 230A | 97 lbs | 20.8 × 8.5 × 12 | 3,500+ | 11 yr | IP67 | Bluetooth: yes | Heated: yes | Victron communications: yes |
 | 460Ah | 5.89 kWh | 230A | 97 lbs | 20.8 × 8.5 × 12 | 4,000+ | 11 yr | IP67 | Bluetooth: yes | Heated: yes | Victron communications: yes |
| 230Ah | 5.89 kWh | 110A | 97 lbs | 20.8 × 8.5 × 12 | 3,500+ | 11 yr | IP67 | Bluetooth: yes | Heated: yes | Victron communications: yes |
| 230Ah | 5.89 kWh | 150A | 97 lbs | 20.8 × 8.5 × 12 | 4,000+ | 11 yr | IP67 | Bluetooth: yes | Heated: yes | Victron communications: yes |
| 100Ah | 5.12 kWh | 150A | 97 lbs | 20.8 × 8.5 × 12 | 3,500+ | 11 yr | IP67 | Bluetooth: yes | Heated: yes | Victron communications: yes |
| 100Ah | 5.12 kWh | 150A | 97 lbs | 20.8 × 8.5 × 12 | 3,500+ | 11 yr | IP67 | Bluetooth: yes | Heated: yes | Victron communications: yes |
 | 300Ah | 3.84 kWh | 300A | 81 lbs | 19.7 × 10.5 × 9.8 | 6,000+ | 11 yr | IP67 | Bluetooth: yes | Heated: yes | Victron communications: yes |
 | 60Ah | 1.54 kWh | 80A | 30 lbs | 12.3 × 6.8 × 9 | 6,000+ | 11 yr | IP67 | Bluetooth: yes | Heated: yes | Victron communications: yes |
Marine batteries do not all perform the same job. One battery may need to start an outboard with a short burst of very high current. Another may spend the day powering a trolling motor. A marine house bank may need to run sonar, refrigeration, pumps, lighting, communications and inverter-powered appliances for hours at a time.
The best lithium marine batteries are designed around the job they must perform.
Epoch Batteries offers LiFePO4 marine power solutions for bass boats, bay boats, center consoles, pontoons, skiffs, kayaks, sailboats, trawlers, workboats, cruising yachts and other recreational or commercial vessels. The collection includes compact 12V batteries for electronics and small trolling motors, cranking-capable dual-purpose batteries for compatible outboards, native 24V and 36V trolling-motor batteries, and high-capacity 48V batteries for advanced house, inverter and electric-propulsion-support systems.
What makes Epoch different is the combination of application-specific battery designs, high-output Battery Management Systems, marine-ready enclosures, Bluetooth monitoring, model-specific cold-weather heating, native Victron communication on select models, integrated Class-T fuse protection on select V2-T batteries, U.S.-based customer support and access to authorized marine battery dealers and installers.
Not every feature is included on every battery, and no single battery is right for every boat. The best Epoch lithium marine battery is the model that matches your equipment voltage, starting-current requirements, continuous loads, desired runtime, charging sources, installation space and boating environment.
Traditional flooded lead-acid and AGM batteries have powered boats for decades, but they add substantial weight, require more maintenance and lose voltage progressively as they discharge.
A properly designed LiFePO4 marine battery system can provide several meaningful advantages.
For anglers, cruisers and marine professionals, these benefits can mean steadier trolling-motor thrust, longer electronics runtime, a cleaner battery compartment and less time maintaining the boat between trips.
A deep-cycle battery, starting battery and dual-purpose battery are not interchangeable simply because they share the same voltage.
Epoch offers different battery platforms for different marine loads:
This application-specific approach allows boat owners to select the battery by what it must do, not just by case size or amp-hour capacity.
Epoch marine batteries use lithium iron phosphate, or LiFePO4, chemistry. LiFePO4 is widely selected for deep-cycle marine energy storage because it combines stable chemistry, a consistent discharge voltage and long cycle life.
Every dependable lithium marine battery also requires a well-designed Battery Management System.
The integrated BMS in Epoch batteries monitors the battery and provides model-specific protection against conditions such as:
BMS current capability varies significantly between models. A compact fish-finder battery does not have the same continuous or peak-current rating as an Epoch dual-purpose cranking battery or high-capacity Elite Series battery.
The BMS is an important layer of protection, but it does not replace properly sized cables, marine-rated disconnects, breakers, Class-T fuses or other required overcurrent protection in the complete electrical system.
Boats expose batteries to humidity, spray, dust, vibration, wet compartments and changing temperatures. Many Epoch marine batteries use IP-rated enclosures designed for these demanding conditions.
Depending on the model, current Epoch marine batteries may carry IP54, IP65 or IP67 ratings.
An IP rating does not make the entire installation waterproof or corrosion-proof. Battery terminals, cables, communication connections, chargers, busbars and disconnects must also be installed and protected correctly.
Even an IP67 battery should be securely mounted, kept away from prolonged standing water and inspected after compartment flooding or severe offshore use.
Marine electrical demand can change quickly.
An outboard starter may require a very high current for several seconds. A trolling motor may draw sustained current in wind or current. A large inverter can create both continuous and surge loads. Pumps, refrigeration compressors and electric motors may also draw more power at startup than during normal operation.
Epoch publishes model-specific continuous and peak-current ratings so buyers and installers can match the battery to the load.
Selected Epoch dual-purpose batteries use high-current BMS designs that can support compatible engine-starting applications. Selected Elite and Pro Series batteries provide the sustained output needed for large house loads and inverter systems.
Amp-hours describe stored charge. They do not tell you whether a battery can safely support a starter motor or large inverter. Always compare the battery’s continuous-discharge, peak-discharge and charging limits with the connected equipment.
Bluetooth-equipped Epoch lithium marine batteries connect to a compatible mobile device through the Epoch app.
Depending on the battery and app version, available information may include:
This visibility is valuable on the water because LiFePO4 voltage remains relatively flat through much of its discharge cycle. A simple voltage gauge may show only a small change even after a meaningful amount of energy has been used.
Direct BMS information helps boaters understand how trolling-motor speed, wind, current, electronics and house appliances affect remaining runtime.
No battery monitor can prevent a battery from being depleted, but accurate state-of-charge information helps the operator make better decisions before the battery reaches its lower limit.
LiFePO4 cells should not be charged below their approved minimum temperature unless the battery includes a suitable heating strategy.
Select heated Epoch marine batteries use incoming charging energy to warm the cells before normal charging begins. This can be useful for:
Internal heating is model-specific. Some batteries include low-temperature charge protection without internal heating, while others include both protection and self-heating.
Always review the selected battery’s charging-temperature range and heating instructions. A battery may be able to discharge at a lower temperature than it can safely accept charging current.
Selected Epoch Elite and Pro Series marine batteries include native CAN-bus communication for compatible Victron GX equipment, including Cerbo GX and Ekrano GX systems.
When installed and configured correctly, the Epoch BMS can communicate information such as:
With Victron Distributed Voltage and Current Control, or DVCC, compatible Victron equipment can respond to battery limits communicated by the BMS.
This allows supported inverter/chargers, solar charge controllers and other connected charging sources to operate from battery-provided information instead of relying entirely on fixed settings or estimated state of charge.
For cruisers, liveaboards and yacht owners, this closed-loop communication can provide more coordinated charging, centralized monitoring and better visibility across the entire power system.
Victron compatibility varies by battery. Installation may require the correct communication cable, supported firmware, proper battery addressing and correct GX and DVCC configuration.
High-capacity lithium batteries can deliver substantial fault current. High-interrupt overcurrent protection is therefore an important part of marine lithium system design.
Select Epoch V2-T Elite Series batteries include an integrated, user-serviceable Eaton Class-T fuse inside the battery enclosure.
This design can:
The integrated fuse does not automatically make the complete installation compliant with every marine standard. Downstream circuits may still require individual protection, and final compliance depends on conductor sizing, disconnect placement, mounting, terminal protection and the rest of the electrical design.
A lithium marine battery is part of a larger electrical system. Support matters when you are selecting a battery, verifying an outboard, programming a charger or diagnosing a system alert.
Epoch provides U.S.-based customer and technical support for:
Epoch also works with authorized marine dealers, installers, integrators and power-system specialists. The Epoch dealer locator can help boat owners find available local assistance with battery selection, installation and system commissioning.
Many current Epoch marine batteries include an 11-year manufacturer warranty, while coverage across the complete collection is listed as up to 11 years and varies by model. Product registration, proof of purchase and the applicable warranty terms are required.
A lithium dual-purpose battery is designed to perform two jobs:
These two jobs place very different demands on a battery.
A starter motor may require hundreds of amps for a few seconds. House electronics usually draw much less current, but they may run for many hours. A true lithium dual-purpose marine battery must be engineered to handle both the brief cranking surge and repeated deep-cycle use.
A standard deep-cycle LiFePO4 battery should not automatically be used as a starting battery. Its BMS may be designed for lower continuous loads and may disconnect when the starter motor demands a high surge.
Only use an Epoch battery for engine starting when the specific model is identified as cranking-capable and the complete system is compatible.
Epoch dual-purpose marine batteries use high-output BMS designs and internal architectures built around both cranking and deep-cycle loads.
Their reliability comes from several working features rather than one specification.
Selected Epoch dual-purpose batteries provide a cranking pulse of up to 1,000 amps for five seconds.
That short-duration current is intended to support the initial demand of a compatible outboard starter without triggering the type of BMS shutdown that can occur when a standard deep-cycle lithium battery is used outside its design limits.
The battery must still meet the engine manufacturer’s required cranking rating, minimum capacity and charging-system requirements.
Starting an outboard normally consumes only a small portion of the battery’s total stored energy. The greater challenge is often everything that continues running after startup:
Epoch dual-purpose batteries combine cranking output with substantial deep-cycle capacity, allowing a properly sized battery to support these loads while preserving adequate starting reserve.
Modern marine electronics can be sensitive to falling voltage.
Lead-acid voltage may decline through the day as livewells, sonar displays and accessories continue drawing power. Low voltage can cause electronics to dim, reboot or shut down.
LiFePO4 maintains a flatter voltage curve, helping properly wired electronics receive more stable power through much of the battery’s usable charge.
Stable battery voltage cannot correct undersized wiring, loose connections or inadequate circuit protection. The full electrical path must be properly engineered.
A dual-purpose battery must preserve enough energy to restart the engine.
Bluetooth monitoring helps the operator see remaining capacity rather than assuming that a battery is full because its resting voltage still appears normal. This is especially useful during long fishing days when multiple electronics and pumps may run continuously.
No dual-purpose battery can guarantee an engine start after the battery has been fully depleted. Offshore boaters and operators with critical redundancy requirements may still choose separate starting and house banks, an emergency-combine arrangement or another approved backup strategy.
Epoch dual-purpose batteries use model-specific IP-rated enclosures to protect the internal battery system from dust and water exposure.
The compact Group 31 dual-purpose model uses IP65 protection, while the larger Group 8D Pro Series model uses an IP67 enclosure.
The correct battery depends on compartment exposure, space, required capacity, output and installation design.
The Epoch 12V 172Ah dual-purpose battery is designed for boaters who need cranking power and substantial house energy in a compact Group 31 footprint.
Its published capabilities include:
It is designed for compatible outboards up to 250 horsepower when the engine manufacturer’s battery specifications, alternator output, charger, cabling and operating requirements all match.
This model is not approved for series wiring. Do not connect it in series to create a 24V, 36V or 48V trolling-motor bank unless Epoch provides written model-specific approval.
The Epoch 12V 300Ah Group 8D Pro Series is intended for larger boats and more demanding systems that need both high-current cranking and substantially more house capacity.
Its published capabilities include:
This model can be appropriate for compatible outboards, high-demand marine electronics and larger inverter-supported house loads when the full system is properly matched.
Its greater capacity does not eliminate the need to preserve starting reserve. Battery state of charge, engine requirements and house consumption must still be monitored.
No lithium marine battery should be described as universally compatible with every outboard.
Before connecting a lithium battery to an engine-starting and alternator-charging circuit, confirm:
A battery that starts one 250-horsepower engine may not automatically be appropriate for a different engine with the same horsepower. Starting systems, alternators and manufacturer requirements differ.
When compatibility is unclear, consult Epoch support, the outboard manufacturer or a qualified marine electrical installer before installation.
A 12V lithium marine battery is the most versatile voltage in the Epoch marine collection.
Common 12V applications include:
Compact 12V batteries can be appropriate for kayaks, skiffs and dedicated electronics circuits. High-capacity 12V batteries can support larger house banks, refrigeration, inverter loads and extensive marine electronics.
Not every 12V Epoch battery is approved for engine starting. Choose a cranking-capable dual-purpose model when the battery will be connected to an outboard starter.
A 24V lithium marine battery is commonly used for medium-to-high-thrust trolling motors and native 24V marine electrical systems.
Common applications include:
A single native 24V Epoch battery can replace two 12V lead-acid batteries wired in series when voltage, capacity, output and fitment all match.
This can reduce weight, remove one series interconnect cable and simplify the charging system.
Epoch currently offers 24V options ranging from compact trolling-motor batteries to high-capacity 24V house batteries with Bluetooth, heating, IP-rated protection and Victron communication on applicable models.
Do not assume a 24V deep-cycle marine battery can start an engine. Use it for engine starting only when Epoch and the engine manufacturer expressly approve that application.
A 36V lithium marine battery is primarily used for compatible high-thrust trolling motors.
Common applications include:
A native 36V battery can replace three 12V lead-acid batteries wired in series when all electrical and physical specifications match.
Replacing three batteries with one native 36V lithium battery can substantially reduce weight, eliminate multiple cables and free storage space.
Epoch’s compact 36V 50Ah Group 31 marine battery stores approximately 1.92kWh and provides 100A continuous output for compatible trolling-motor systems. It also includes internal heating, Bluetooth monitoring and an IP65 enclosure.
Runtime depends on motor efficiency, thrust setting, boat weight, wind, current and propeller load. A 36V battery should be selected by watt-hours and current capability, not by voltage alone.
A dedicated 36V trolling-motor battery is not automatically an engine-starting battery.
Yes. Properly engineered 48V lithium marine battery systems can be an excellent fit for larger boats, yachts, catamarans, trawlers, workboats and other vessels with substantial house or inverter loads.
A 48V system is not necessary for every boat. It becomes attractive when the vessel must move a significant amount of electrical power.
A 48V Epoch battery can provide energy for large house loads such as:
The battery bank, inverter/charger, solar controllers, alternator-charging equipment and DC distribution system must all be designed for 48V operation.
At the same wattage, increasing system voltage reduces current.
A 4,800-watt load draws approximately:
Actual current varies with battery voltage, equipment efficiency and operating conditions, but the relationship explains why larger marine systems often move to a higher-voltage architecture.
Lower current can reduce voltage drop, cable bulk and stress on high-current connections when the complete system is properly designed.
A 48V battery does not automatically make an installation safe or efficient. Cable ampacity, voltage drop, overcurrent protection, disconnect ratings, insulation and equipment compatibility must still be engineered correctly.
Select Epoch 48V Elite and V2-T batteries include native Victron CAN-bus communication and DVCC support.
This makes them a strong foundation for compatible marine energy systems using:
The battery BMS can provide the Victron GX system with state of charge, charge limits, voltage, current, temperature and alarm information.
For a larger vessel with multiple charging sources, this can create more coordinated control than a system in which each charger operates independently from fixed settings.
The Epoch 48V 100Ah V2-T Elite stores approximately 5.12kWh in one battery and supports model-specific parallel expansion using matched batteries.
A single battery may support a moderate 48V marine house system. Multiple batteries can be combined in parallel to provide additional capacity and output when the bank is engineered according to Epoch’s instructions.
Parallel expansion gives yacht owners and builders a path to create larger energy banks without wiring lower-voltage batteries in series.
Use matched batteries of the same model, capacity, age and state of charge. Follow Epoch’s requirements for communication, busbars, balanced wiring, fusing and maximum bank size.
The 48V V2-T platform includes a user-serviceable Class-T fuse inside the IP67 enclosure.
This can simplify the first stage of overcurrent protection in a high-power marine installation and reduce the amount of unfused conductor between the battery and primary protection.
The complete yacht electrical system will still require appropriate downstream circuit protection, disconnects, busbars and cable sizing.
The Epoch 48V V2-T Elite is intended for marine house power, inverter systems and compatible electric-propulsion-support applications. It is not designed as an engine-starting battery.
Many larger boats use separate electrical systems for different jobs:
Separating starting and house systems can preserve engine-starting redundancy while allowing the house bank to operate at a more efficient voltage for high-power loads.
A 48V marine system should be designed and commissioned by a qualified marine electrical professional.
Trolling motors are one of the most common reasons boat owners upgrade to lithium.
LiFePO4’s flat voltage curve helps a compatible trolling motor maintain steadier thrust through more of the battery’s usable capacity. Reduced battery weight can also improve boat balance and free storage space.
Choose a trolling-motor battery by checking:
The trolling-motor voltage must match the battery system.
Never connect a higher-voltage battery to a lower-voltage trolling motor.
A larger amp-hour rating generally provides longer runtime at the same voltage, but actual time on the water depends heavily on motor speed. Running continuously at maximum thrust consumes much more energy than operating at a moderate setting.
A marine house battery supplies energy when the engine is off or when onboard loads exceed the immediate output of the charging system.
Typical house loads include:
Size a marine house bank in watt-hours rather than relying only on amp-hours.
Approximate stored energy is calculated as:
Watt-hours = nominal voltage × amp-hours
For example:
This is why batteries with the same amp-hour rating can provide very different total energy at different voltages.
Add the daily watt-hour use of each appliance, allow for inverter losses and include a reserve for cloudy weather, unexpected loads and time away from charging.
Start with the electrical system rather than the battery case size.
A lithium marine battery should be charged with equipment configured for the battery’s approved LiFePO4 charging profile.
Charging sources may include:
Do not assume an existing lead-acid charger is suitable simply because its output voltage appears close.
Lead-acid chargers may use equalization stages, conditioning modes or float behavior that is inappropriate for LiFePO4. Equalization should generally be disabled for lithium unless the battery manufacturer expressly instructs otherwise.
For alternator charging, confirm:
A lithium battery may accept charge current more readily than the lead-acid bank it replaces. An alternator and charging circuit must be able to support that demand without overheating or exceeding battery limits.
Victron-compatible Epoch batteries can communicate model-specific charging limits to supported equipment when the CAN-bus and DVCC system is configured correctly.
A high-quality battery still depends on a high-quality installation.
A marine lithium installation should include:
Lithium batteries can be substantially lighter than the lead-acid batteries they replace. That makes secure restraint especially important because the battery’s weight alone will no longer keep it from moving in rough water.
IP-rated construction does not eliminate the need to protect exposed terminals and connections from saltwater corrosion.
Inspect the installation periodically and after severe weather, compartment flooding, grounding, impact or extended offshore operation.
