The Epoch 12V 460Ah V2 Elite Series (SKU: C12460A) is a 12-volt, 460 amp-hour lithium iron phosphate (LiFePO4) deep-cycle battery designed for large-format RV, marine, and off-grid energy systems. With 5,888 watt-hours of stored energy in a Group 8D footprint, it consolidates the capacity of multiple smaller batteries into a single sealed, maintenance-free unit.

This is the second-generation V2 release, which includes significant upgrades over the original model: refined Victron CAN Bus communication, expanded parallel capability from 4 to 16 units, over-the-air BMS firmware updates, an improved battery gauge with real-time state-of-charge display, and a Bluetooth module repositioned into the external gauge panel for better wireless range in larger installations.

The battery is built around prismatic LiFePO4 cells in a 4S2P configuration and is enclosed in a flame-retardant PC + ABS case rated UL 94 V-0. An IP67 seal protects against dust and water submersion. An integrated self-heating system allows charging in temperatures as low as -22°F (-30°C).

For RV and Boondocking Use

A single 460Ah battery provides enough capacity to power a 12-volt compressor refrigerator, interior lighting, fans, and moderate inverter loads through a full night and into the following day without shore power or a generator. Users running Grand Design, Airstream, Tiffin, and Newmar rigs report multi-day boondocking stays on a single battery with limited solar input.

The battery accepts up to 230 amps of continuous charge current, which shortens recharge time significantly compared to AGM banks. The 500-amp 30-second peak and 1,300-amp 1-second peak discharge ratings provide enough cranking power to start onboard generators and operate hydraulic leveling systems.

For Marine Use

The IP67 enclosure makes this battery suitable for installation in marine bilge areas, wet engine rooms, and deck compartments where moisture and splashing are routine. The internal fuse carries a 50,000-amp interruption rating, which satisfies ABYC requirements for high-current protection without requiring an external Class T fuse in most installations.

A pair of these batteries in parallel delivers 920Ah and approximately 11.8kWh of usable energy equivalent in storage to five or six large 8D AGM batteries at a fraction of the weight and in a significantly smaller footprint. The battery is vibration-resistant and rated for the thermal and mechanical demands of marine operation.

For Off-Grid and Solar Storage

Up to 16 units connect in parallel for a maximum bank of 7,360Ah on a single 12V system suitable for off-grid cabins, outbuildings, and small residential backup installations. Up to four units connect in series for 24V, 36V, or 48V configurations. The system is expandable over time: start with one battery and add units as needs grow, using the included CAN Bus cables and DIP switch guide.

LiFePO4 Chemistry

Lithium iron phosphate is a stable, thermally safe chemistry that does not use liquid electrolyte and does not produce the thermal runaway events associated with other lithium chemistries. It supports deep cycling, regularly discharging to 20% state of charge, without the accelerated degradation that affects AGM and gel batteries under similar conditions. Rated for a minimum of 3,000 charge cycles.

Integrated Self-Heating System

An internal heater activates automatically when battery temperature drops below 32°F (0°C), warming the cells to a safe charging range. This allows charging in ambient temperatures as low as -22°F (-30°C). Discharge remains functional down to -4°F (-20°C) without heater activation. This feature is relevant for winter RV camping, cold-weather marine operation, and northern off-grid installations where temperatures fall below freezing overnight.

IP67 Sealed Enclosure

The battery case is rated IP67 fully sealed against dust and capable of withstanding submersion in water up to 1 meter deep for 30 minutes. The case material is a PC + ABS blend with a UL 94 V-0 flame-retardant rating. This makes the battery suitable for marine bilge installation, outdoor off-grid enclosures, and humid environments where conventional battery housings would be at risk.

Bluetooth Monitoring via iOS and Android App

The Epoch Li-Ion app (available on the App Store and Google Play) connects to the battery via Bluetooth and displays real-time state of charge percentage, total voltage, current flow in and out, remaining amp-hours, individual cell voltages, cell temperatures, and alarm status. Historical data voltage, current, state of charge, capacity, and temperature is stored and viewable over custom time frames. The Bluetooth module in the V2 is located in the external gauge panel rather than inside the sealed case, improving wireless range in large RVs and boats.

Victron CAN Bus Integration

The battery communicates natively with Victron GX devices (Cerbo GX, Venus GX, and compatible units) via the VE.CAN port using CAN Bus protocol at 500 kbps. When DVCC is enabled and the controlling BMS is set to Epoch in the GX device settings, the battery automatically manages absorption voltage (14.2V), absorption time, and float voltage (13.5V). The integrated shunt allows the battery to function as the system battery monitor in single-battery installations, which may eliminate the need for a separate SmartShunt or BMV-712. The V2 release specifically addresses high-voltage alarm handling that caused inaccurate readings in the original model.

Over-the-Air BMS Firmware Updates

The battery management system firmware updates wirelessly through the Epoch Li-Ion app. No cables, no computer, and no technician visit are required. Updates are downloaded and installed while the battery is powered on and connected via Bluetooth. This ensures the BMS continues to receive performance and reliability improvements after purchase.

Upgraded Battery Gauge Panel

The included external gauge panel displays state of charge percentage, voltage, current flow, and alarm alerts. This is a significant improvement over the 10-segment LED bar gauge on the original model. The gauge mounts remotely the battery includes a panel-mountable remote ON/OFF switch on an approximately 10-foot cable, allowing installation in a compartment while the gauge and switch are accessible from the living area or helm.

Built-In Smart Battery Management System (BMS)

The integrated BMS monitors and protects the battery continuously. Protections include overcharge cutoff at 3.65V per cell (14.6V total), over-discharge cutoff at 2.70V per cell, overcurrent protection at 400A with a 5-second delay, discharge overcurrent at 550A, short-circuit protection at 1,200A, and high and low temperature disconnects on both charge and discharge. The BMS also manages cell balancing to maintain uniform capacity across all cells.

Scalable Parallel and Series Configuration

Up to 16 batteries connect in parallel at 12V for a maximum capacity of 7,360Ah. Up to 4 batteries connect in series for 24V, 36V, or 48V systems. The V2 release expanded parallel capability from the original limit of 4 batteries. All configurations are monitored from a single dashboard in the Epoch Li-Ion app. CAN Bus cables and DIP switch settings for every configuration are included with the battery.

Internal Fuse with High Interruption Rating

A 400-amp rated internal fuse with a transient overload capacity of 1,200 amps at 3 seconds and an arc interruption rating of 50,000 amps is installed inside the battery. This meets ABYC requirements for high-current protection in marine installations. The fuse is UL60691 certified.

Low Self-Discharge

Self-discharge rate is less than 3% per month. A battery stored at 50% or higher charge and kept in a temperature range of 32–95°F will retain adequate charge for up to one year without a maintenance charge.

RV and Motorhome Power Systems

The C12460A fits in a standard Group 8D battery compartment and is a direct-fit replacement for multiple smaller AGM or lithium batteries. A single battery powers 12-volt compressor refrigerators, LED lighting, water pumps, diesel heaters, CPAP machines, and moderate inverter loads for extended periods without shore power. The battery's 230-amp continuous discharge supports inverters up to approximately 2,600 to 2,900 watts depending on inverter efficiency, and its 500-amp 30-second peak handles the inrush current of generator start sequences and hydraulic slide and leveler systems.

Typical RV installations include single-battery setups replacing 2 to 4 AGM group 27, 31, or 8D batteries, or parallel banks of 2 to 4 units for full-time RVers running larger loads. The self-heating feature supports year-round use including winter camping in temperatures below freezing.

Marine House Banks

The IP67 rating and vibration-resistant construction make this battery suitable for installation in marine bilge areas, battery compartments adjacent to the waterline, and engine rooms where condensation and splashing occur. Two batteries in parallel deliver 920Ah sufficient house bank capacity for extended offshore passages or liveaboard use running refrigeration, autopilot, navigation electronics, and interior lighting.

The internal fuse satisfies ABYC protection requirements in most configurations. The native Victron CAN Bus integration is compatible with Victron-based marine electrical systems commonly found on trawlers, sailboats, and powerboats, including installations using Multiplus, Quattro, and Cerbo GX equipment.

The 1,300-amp 1-second peak discharge supports windlass, bow thruster, and engine start applications where high instantaneous current demand is a requirement.

Off-Grid Cabins and Remote Installations

A bank of four 460Ah batteries in parallel delivers 1,840Ah at 12V enough storage for small cabins running LED lighting, a chest refrigerator, water pump, and basic electronics through 2 to 3 days of cloudy weather before requiring a generator or solar recharge. Larger installations scale to 16 batteries and 94kWh. The self-heating system protects cell integrity in remote northern installations where battery compartments may reach sub-freezing temperatures overnight.

Solar Energy Storage

LiFePO4 chemistry accepts charge efficiently across a wide input current range. The battery charges at up to 230 amps continuous from solar MPPT controllers, generator-driven chargers, or shore power inverter-chargers. The Victron CAN Bus integration enables DVCC-based charge control when paired with compatible Victron solar charge controllers, allowing the battery to communicate its state directly to the charging source.

Backup Power

The battery's low self-discharge rate (under 3% per month) and stable resting voltage make it suitable as a standby backup power source for critical residential or commercial equipment. A single 460Ah battery at 12V provides approximately 5.8kWh of available energy enough to power a standard household refrigerator for approximately 48 to 72 hours or support critical medical equipment, lighting, and communication devices during an extended outage.

Recommended Charge Settings

Use the following parameters when programming a charger, inverter-charger, or solar charge controller manually. These settings apply to a single battery or a parallel bank of multiple batteries at 12V nominal.

Victron System Setup (DVCC)

When connecting to a Victron GX device via CAN Bus, the battery communicates its charge parameters automatically. Follow these steps for proper configuration:

• Connect the included CAN Bus cable from the battery Victron port to the BMS-CAN or VE.CAN port on the GX device.
• In the GX device, navigate to Settings, then Services, then VE.CAN and set the port speed to 500 kbps.
• Enable DVCC in the GX device settings.
• Set the controlling BMS to Epoch.
• Set the battery monitor source to Epoch.
• The system will automatically use 14.2V absorption with a minimum 15-minute absorption time per battery and 13.5V float.
• It is also recommended to manually program these same values in any Multiplus, Quattro, or other charge sources as a fallback in the event of CAN Bus communication loss.

Compatible Charger Types

• Chargers with a dedicated LiFePO4 charge profile set to the voltages above
• Victron Multiplus and Quattro inverter-chargers (with correct profile programmed or DVCC active)
• Victron SmartSolar and BlueSolar MPPT charge controllers (LiFePO4 profile or user-defined)
• Any MPPT solar charge controller with a programmable lithium or custom voltage profile
• DC-to-DC chargers (such as the Victron Orion XS) for alternator charging recommended to protect the alternator from the battery's high charge acceptance rate

Charging Below Freezing

The integrated self-heater activates automatically when the battery temperature falls below 32°F (0°C). This allows safe charging in ambient temperatures as low as -22°F (-30°C). Do not attempt to force charging below the BMS temperature protection threshold without the self-heater active, as charging lithium cells below freezing causes permanent capacity loss.

Initial Charge Before First Use

Perform a full charge to 14.2V with an appropriate LiFePO4 charger before placing the battery into service. This confirms cell state and allows the BMS to calibrate its state-of-charge reading.

State-of-Charge Recalibration

The battery recalibrates its state-of-charge reading when charged to the maximum voltage of 14.6V manually, or automatically when operating under Victron CAN Bus communications using the custom algorithm. If the SOC reading drifts over time, performing a full charge to 14.6V will reset the reading to 100%.

Electrical Specifications

Discharge Specifications

Charge Specifications

Temperature Specifications

BMS Protection Specifications

Mechanical Specifications

Connection and Communication

Compliance and Certifications

Warranty

Each C12460A battery ships with the following accessories required for installation and monitoring. No additional purchase is necessary to connect, monitor, and operate the battery in a standard installation.

• Epoch 12V 460Ah V2 Elite Series LiFePO4 Battery (C12460A)
• Remote ON/OFF power switch panel-mountable, approximately 10-foot (120-inch) cable
• Battery status gauge panel displays SOC percentage, voltage, current flow, and alarm alerts
• CAN Bus cables for Victron GX device integration (labeled Victron and CAN for multi-battery daisy-chain)
• DIP switch configuration guide for standalone, series, and parallel setups
• User manual and quick-start documentation

What Is Not Included

The following items are not included and must be sourced separately depending on your installation:

• Battery cables and terminal lugs size based on your system's current requirements
• External charger or inverter-charger a LiFePO4-compatible unit is required
• Solar charge controller, if solar charging is planned
• Victron GX device (Cerbo GX, Venus GX) required for CAN Bus integration
• DC-to-DC charger (such as Victron Orion XS) recommended if charging from a vehicle alternator
• External bus bars, recommended for 3 or more batteries in parallel

Charger Compatibility

This battery requires a charger programmed for LiFePO4 chemistry. Set absorption voltage to 14.2V, float voltage to 13.5V, and disable equalization and temperature compensation. The following charger types are compatible when programmed correctly:

• Victron Multiplus and Quattro inverter-chargers
• Progressive Dynamics PD9200 series with LiFePO4 profile
• Renogy DCC Series DC-to-DC chargers
• Victron Orion XS DC-to-DC charger (recommended for alternator charging)
• Any MPPT solar charge controller with a programmable user-defined or LiFePO4 profile
• Noco Genius and similar smart chargers with a lithium iron phosphate mode

Factory RV converters and older AGM-only chargers typically do not support LiFePO4 voltage profiles and will either undercharge the battery or fail to initiate charging. Upgrading the charger or inverter-charger is strongly recommended when replacing AGM batteries with this unit.

Victron Ecosystem Compatibility

The battery has been designed and tested for use with the Victron Energy product ecosystem. Confirmed compatible products include:

• Cerbo GX and Cerbo-S GX (VE.CAN port, 500 kbps)
• Venus GX (VE.CAN port)
• Color Control GX (VE.CAN port)
• Multiplus and Multiplus II inverter-chargers (charge profile via DVCC or manual programming)
• Quattro and Quattro II inverter-chargers
• SmartSolar MPPT charge controllers (LiFePO4 or user-defined profile)
• BlueSolar MPPT charge controllers (user-defined profile)

Battery Mixing

Do not connect this battery in series or parallel with batteries of a different brand, voltage, capacity, or chemistry. Mixing batteries in a bank causes uneven charging, accelerated degradation, and potential BMS conflicts. All batteries in a bank should be the same model, purchased at the same time when possible, and at the same state of charge before connection.

Physical Fit | Group 8D

The battery measures 20.75 inches long, 8.5 inches wide, and 12 inches tall. It fits standard Group 8D battery trays and boxes. Note that this battery is approximately 0.5 to 1 inch taller than some older Group 8D AGM batteries. Verify vertical clearance in your battery compartment before ordering. Weight is 97 lbs verify that your battery tray or mounting surface is rated for this load.