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DAD5This battery includes a security PIN for the mobile app when first connecting via Bluetooth. The PIN is located on the top of your battery. This PIN cannot be changed or deleted for the life of the battery, so we recommend taking a photo of the code for future reference.
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Heated Bluetooth LiFePO4 power
High-capacity heated Bluetooth deep-cycle lithium power in a Group 31 footprint.
The Epoch 12V 300Ah Essential Series LiFePO4 Battery delivers 3.84kWh of stored energy, 200A continuous output, internal heating, Bluetooth monitoring, IP54 weather-resistant protection, and advanced BMS safety features for RV, marine, solar, off-grid, backup, and large 12V house-power systems.
Group 31 performance with Bluetooth visibility and cold-weather charging support.
The Epoch 12V 300Ah Essential Series LiFePO4 Battery is engineered for demanding deep-cycle 12V energy systems that need more runtime from a single battery. With 300Ah of capacity, 3.84kWh of stored energy, 200A maximum continuous discharge, and 200A maximum charge current, it provides substantial lithium power for larger RV, marine, solar, and off-grid applications.
Built-in heating helps support charging in sub-zero conditions, while Bluetooth connectivity lets users monitor battery status through compatible iOS and Android apps. The advanced BMS helps protect the battery against overcharge, over-discharge, over-current, short circuit, and high or low temperature conditions.
RV, marine, solar, off-grid, and backup power systems.
Smart lithium performance with cold-weather charging support.
Recommended add-ons for a complete installation.
Full technical details, dimensions, weight, and charging settings.
Dust protected. Splash resistant. Built for daily use.
The IP54-rated enclosure helps protect the battery from dust and water splashes, making it suitable for many everyday outdoor, mobile, RV, and marine house-power environments. It is weather-resistant for normal use, but it should not be submerged or installed where standing water can collect around the battery.
App access protection for authorized monitoring.
This battery includes a Bluetooth security PIN for first-time mobile app connection. The PIN is located on the top of the battery and cannot be changed or deleted for the life of the battery.
More usable energy. Less maintenance. Longer service life.
LiFePO4 technology provides stable voltage output, long cycle life, fast charging capability, and maintenance-free operation. Compared with traditional lead-acid batteries, this Epoch lithium battery delivers efficient energy storage in a lighter package while eliminating watering, acid maintenance, and routine lead-acid service.
Verify your system before installation.
Always confirm battery tray dimensions, Group 31 fitment, cable clearance, terminal compatibility, charger compatibility, and system requirements before installation. Use a lithium-compatible charger, inverter charger, converter, solar charge controller, or DC-to-DC charger programmed within Epoch’s recommended charging parameters. For series or parallel battery banks, use matched batteries of the same model, age, capacity, and state of charge, and follow Epoch’s installation guidelines.
Common questions about fitment, charging, Bluetooth, and lithium performance.
The Epoch 12V 300Ah battery stores 3.84kWh of energy at a nominal 12.8V, making it a strong single-battery option for larger 12V house-power systems.
Yes. This model includes internal heating to help support charging in cold conditions. The listed charge temperature range is -20°C to 55°C / -4°F to 131°F with heating.
Yes, this battery is intended for Group 31 replacement applications where tray size, terminal type, cable clearance, charging equipment, and system requirements match. Always confirm fitment before installation.
Yes. This battery includes Bluetooth monitoring and is compatible with Epoch Li-Ion apps for iOS and Android. It also includes a Bluetooth security PIN located on top of the battery for first-time connection.
Use a lithium-compatible charger, inverter charger, converter, solar charge controller, or DC-to-DC charger programmed for LiFePO4 batteries. Recommended settings include 14.2V – 14.4V bulk/absorption, float disabled preferred or 13.3V – 13.6V, equalization disabled, and temperature compensation disabled.
Yes. This battery supports up to 4 batteries in series and up to 4 batteries in parallel, with a maximum 4S4P configuration. Matched batteries should be used with balanced wiring and compatible charging equipment.
Yes. The built-in advanced BMS helps protect the battery against overcharge, over-discharge, over-current, short circuit, and high or low temperature conditions. It also includes low-temperature charge protection.
The battery has an IP54-rated enclosure, meaning it is dust-protected and splash-resistant for many everyday outdoor and mobile environments. It should not be submerged, pressure-washed, or installed where standing water can collect around the battery.
Three high-capacity 12V LiFePO4 options, each built for a different job: premium marine cranking, heated Bluetooth house power, or value-focused deep-cycle energy storage.
The heavy-duty Group 8D-style option for users who need cranking power, deep-cycle capacity, Bluetooth, internal heating, Victron communications, and IP67 protection.
A more compact heated Bluetooth deep-cycle battery for RV, marine, solar, off-grid, backup, and large 12V auxiliary power systems.
The value-focused high-capacity option with the most stored energy in this comparison, strong 250A output, and simple deep-cycle operation.
Compare capacity, cranking ability, heating, Bluetooth, output, expansion, water protection, size, weight, and warranty before choosing your battery.
| Feature | 12V 300Ah Pro Series Cranking + Deep-Cycle Group 8D-Style LiFePO4 Cranking Heated Bluetooth IP67 | 12V 300Ah Essential Heated Bluetooth Deep-Cycle LiFePO4 Heated Bluetooth IP54 | 12V 314Ah Eco Series Value High-Capacity Deep-Cycle LiFePO4 314Ah Eco IP54 |
|---|---|---|---|
| Best For | Premium marine cranking, outboard starting support, heavy-duty house power, deep-cycle marine systems, and Victron-connected builds. | RV, marine house power, solar, off-grid, backup, and large 12V auxiliary systems where heating and app monitoring matter. | Value-focused RV, van, camper, marine house power, solar, backup, and large 12V deep-cycle storage systems. |
| Battery Role | Dual-purpose cranking and deep-cycle lithium battery. | Heated Bluetooth deep-cycle lithium battery. | High-capacity Eco Series deep-cycle lithium battery. |
| Nominal Voltage | 12.8V | 12.8V | 12.8V |
| Nominal Capacity | 300Ah | 300Ah | 314Ah — highest capacity in this comparison. |
| Stored Energy | 3.84kWh | 3.84kWh | 4.02kWh — most stored energy here. |
| Bluetooth Monitoring | Yes — iOS and Android app support. | Yes — iOS and Android app support. | No integrated Bluetooth listed — pair with an external monitor if app-based monitoring is needed. |
| Internal Heating | Yes — internal heating supports charging in sub-zero conditions. | Yes — internal heating supports charging in sub-zero conditions. | No — includes low-temperature charge protection instead. |
| Cranking / Starting | Yes Built for cranking and deep-cycle use with 1,000A peak output at 5 seconds. | Not designed as a cranking battery. Best used for deep-cycle house power. | Not designed as a cranking battery. Best used for deep-cycle house power. |
| Victron / Communications | Yes — Victron communications with CANBUS support. | Not listed as a Victron communications battery. | Not listed as a Victron communications battery. |
| Max Continuous Discharge | 300A — strongest continuous output here. | 200A | 250A |
| Max Charge Current | 300A | 200A | 250A |
| Peak Discharge |
1,000A for 5 seconds 800A for 10 seconds |
400A for 3 seconds | 750A for 5 seconds |
| Cycle Life | 6,000+ cycles — longest cycle rating here. | 4,000+ cycles | 4,500+ cycles |
| Weather Protection | IP67 — dustproof and waterproof protection. | IP54 — weather-resistant protection. | IP54 — weather-resistant protection. |
| Series / Parallel | Max 4 in series and max 16 in parallel. | Max 4 in series and max 4 in parallel, up to 1,200Ah. | Max 4 in series and max 16 in parallel, up to 64.3kWh. |
| Footprint | Group 8D-style case for high-output marine and heavy-duty installations. | Compact high-capacity case / Group 31-style footprint. | Compact high-capacity case with the same listed dimensions as the 300Ah Essential. |
| Dimensions | 19.70" L × 10.5" W × 9.75" H | 13.75" L at base / 15.5" L at handles × 7.63" W × 10.0" H / 10.5" H with terminal bolts | 13.75" L at base / 15.5" L at handles × 7.63" W × 10.0" H / 10.5" H with terminal bolts |
| Weight | 81 lb | 58 lb | 57 lb — lightest in this comparison. |
| Warranty | 11-year manufacturer warranty | 11-year manufacturer warranty | 6-year manufacturer warranty |
| Quick Recommendation | Choose this for maximum performance, marine cranking, IP67 protection, Victron communication, and the strongest continuous output. | Choose this for heated Bluetooth deep-cycle power in a more compact, lighter package than the Pro Series. | Choose this for the most Ah and kWh per battery when you do not need integrated Bluetooth, self-heating, or cranking capability. |
| Shop | Shop 300Ah Pro | Shop 300Ah Essential | Shop 314Ah Eco |
Experience worry-free adventures with our robust IP54 protection. Your battery is effectively shielded against dust and water splashes, giving you the confidence to use it in light rain or dusty conditions. While not fully waterproof, IP54 provides reliable protection for most everyday outdoor scenarios.