Epoch Batteries
Epoch Batteries 12V 460Ah Heated LiFePO4 Deep Cycle Battery
Epoch Batteries 12V 460Ah Heated LiFePO4 Deep Cycle Battery
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- Price: $1,599.00
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PRODUCT DESCRIPTION
- 🇺🇸Free ShippingContiguous 48 states
- 🛡️11-Year Battery WarrantyBacked by Epoch
- ⚡5.89 kWhLike four-plus 100Ah batteries
- 🔥Self-HeatingCharges down to -20°C
- 📱Bluetooth + Built-In ShuntNo extra monitor needed
- 📞Real Human SupportSizing & setup questions
5.89kWh of heated, Bluetooth-connected lithium in one 8D-size battery. The Epoch 12V 460Ah Essential Series stores 5.89kWh in a BCI Group 8D footprint, more energy than four 100Ah batteries under a single BMS. Automatic internal heating lets it charge in winter, and built-in Bluetooth with a shunt shows your exact state of charge on your phone. It's built for RV, marine, off-grid solar and backup systems that need a large house bank without a rack of batteries.
🔧 Will It Fit & Work for You?
A BCI Group 8D footprint, the large size used in many coaches, boats and solar banks. Popular uses include:
- Motorhome & fifth wheel house power
- Marine house power & yachts
- Off-grid solar & inverter systems
- Cabins & tiny homes
- Home backup power
- Work trucks & mobile power
- 24V–48V systems (in series)
- Your space fits 20.55" L × 9.45" W × 8.60" H (8D), plus room for terminal hardware, cable bends and service access.
- Your mounting can handle 84 lb. Plan a two-person lift.
- Your inverter's DC input stays within 200A continuous (about 2,560W, which commonly suits 2,000–2,400W inverters), with 138A recommended for sustained loads.
- Your charger has a LiFePO4 profile and supplies at least 0.5A so the heater can run in the cold.
- It's a deep-cycle battery, not for starting engines. Add a properly sized fuse or breaker near the positive terminal.
Why It's the Big-Bank Upgrade
A Whole Bank in One Box
5.89kWh, more than four 100Ah batteries, under one BMS. Fewer cables, fewer connections and no balancing between batteries.
Winter-Ready Charging
Below freezing, charging current powers internal heaters (never your stored energy). Tested to -20°C and rated for ambient temperatures down to -40°C.
Bluetooth With a Built-In Shunt
The free Epoch Li-Ion app shows state of charge, voltage, current and temperature, with no separate monitor to buy.
Runs a Real Inverter
200A continuous (about 2,560W) supports common 2,000–2,400W 12V inverters with proper cabling and fusing, and 400A peaks for up to 10 seconds.
Scales Up
Up to 4 in series for 24V–48V, or up to 4 in parallel for 1,840Ah at 12V, using matched batteries.
Zero Maintenance
No watering, no acid, no terminal cleaning. Rated for 4,000+ cycles.
⏱️ How Long Will It Run?
| Constant load | Estimated runtime |
|---|---|
| 100W | About 47.1 hours |
| 250W | About 18.8 hours |
| 500W | About 9.4 hours |
| 10A DC load | About 36.8 hours |
Epoch planning estimates per battery, based on 80% of nominal energy (about 4,710Wh, 368Ah). Real runtime varies with load, inverter efficiency, cabling, temperature and battery age.
📦 What's in the Box
-
12V 460Ah Heated LiFePO4 Battery (12460A-H)Bluetooth, built-in shunt & internal heater
Lithium vs. a Lead-Acid Bank
| Epoch 12V 460Ah Heated | Typical Lead-Acid | |
|---|---|---|
| Batteries for ~5.9 kWh | 1 | Several |
| Weight | 84 lb | Many times heavier |
| Usable capacity | Most of the rated 460Ah | About half, to protect battery life |
| Cold-weather charging | Built-in heater | Slow & inefficient |
| Phone monitoring | Yes, with built-in shunt | No |
| Warranty | 11-year limited | Usually 1–2 years |
🔌 Charging Made Simple
Recommended: 138A
Charge at 138A (0.3C) for best results (200A max). Settings for other chargers are in the spec table.
No Lead-Acid Modes
Use a charger with a LiFePO4 profile. Turn off equalization, desulfation and "repair" modes, and set temperature compensation to 0.
Cold-Weather Charging
Below 0°C (32°F), a charger supplying at least 0.5A powers the heater. Charging resumes automatically at 5°C (41°F).
Charging From an Alternator?
Epoch recommends a DC-to-DC charger programmed for LiFePO4 between your alternator and the battery.
🛡️ 11-Year Limited Warranty
Register with Epoch within 90 days of purchase or keep your proof of purchase. Full terms at epochbatteries.com.
📋 Full Specifications
| Electrical | |
| Chemistry | LiFePO4, prismatic cells |
|---|---|
| Configuration | 4S2P |
| Nominal Voltage | 12.8V |
| Capacity / Energy | 460Ah (0.2C) / 5,888Wh (5.89kWh) |
| Operating Voltage | 10.0V – 14.6V |
| Continuous Discharge | 200A (about 2,560W) |
| Peak Discharge | 400A (up to 10 sec) |
| Max Charge Current | 200A |
| Recommended Charge / Discharge Current | 138A (0.3C) |
| Cycle Life | 4,000+ cycles |
| Series / Parallel | Up to 4 in series (48V) / up to 4 in parallel (1,840Ah), 4S4P max, matched batteries |
| Physical | |
| BCI Group Size | Group 8D footprint |
| Dimensions (L × W × H) | 20.55" × 9.45" × 8.60" |
| Metric | 522 × 240 × 218.4 mm |
| Weight | 84 lb (38.1 kg) |
| Case | ABS/PC blend, UL94-V0 flame rating |
| Ingress Rating | IP54 (dust protected, splash resistant, not submersible) |
| Terminals | M8 female, 8–12 Nm (71–106 in-lb) |
| Bluetooth | Yes, Epoch Li-Ion app with built-in shunt |
| Temperature | |
| Charge | -20°C to 55°C (-4°F to 131°F) with internal heating |
| Discharge | -20°C to 60°C (-4°F to 140°F) |
| Storage (recommended) | 0°C to 35°C (32°F to 95°F) |
| Internal Heater | Yes, powered by charge current (0.5A minimum) |
| Charger Settings | |
| Bulk / Absorption | 14.2V – 14.4V |
| Absorption End | C/20 (23A) or 15 minutes |
| Float | Disabled (preferred) or 13.3V – 13.6V |
| Re-Bulk | 13.2V |
| Max Charge Voltage | 14.6V |
| Temp Compensation / Equalization | Off / Off |
| Certifications | |
| Cells | UL 1642, IEC 62619:2022 |
| Product | CE, RoHS |
| Transport | UN 38.3 |
| Ordering | |
| SKU | 12460A-H |
📄 Manuals & Downloads
📱 Get the free Epoch Li-Ion app: App Store · Google Play
❓ Common Questions
Can this replace a bank of 100Ah batteries?
Will it fit where my 8D batteries go?
What size inverter can it run?
How does the heater work in winter?
Does it have Bluetooth?
Can I wire them for 24V or 48V?
Is it waterproof?
Can it start my engine?
Questions About Your Setup? Ask Us First.
Tell us about your RV, boat, solar or backup system and we'll help you size the battery bank, inverter and charger.

LiFePO4 Chemistry
Lithium iron phosphate cells, one of the most stable lithium chemistries available
Built-In Smart BMS
Guards against overcharge, over-discharge, over-current, short circuit & temperature extremes
Zero Maintenance
No watering, no acid, no terminal cleaning
Backed by Epoch
Manufacturer warranty, plus real help from our team at 833-664-7433