12V 334Ah (4.28kWh) Essential Series - Bluetooth & Heated LiFePO4 Battery 1 / 1
Epoch Batteries

12V 334Ah (4.28kWh) Essential Series - Bluetooth & Heated LiFePO4 Battery 12V 334Ah (4.28kWh) Essential Series - Bluetooth & Heated LiFePO4 Battery

SKU: 12334A-MC

Brand Epoch Batteries In Stock
$1,299.00 In Stock
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Key features
  • • Capacity additive — e.g. 2 × 334 Ah = 668 Ah (8.55 kWh); 4 × 334 Ah = 1,336 Ah (17.1 kWh).
  • • Charger → Battery type Lithium
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12V 334Ah (4.28kWh) Essential Series - Bluetooth & Heated LiFePO4 Battery

In Stock
12V 334Ah (4.28kWh) Essential Series - Bluetooth & Heated LiFePO4 Battery
Quantity$1,299.00 each
1

The Epoch 12V 334Ah (4.28kWh) Essential Series - Bluetooth & Heated LiFePO4 Battery gives customers a lithium iron phosphate power option for solar and off-grid power and backup energy storage. It is a strong fit for shoppers comparing dependable LiFePO4 batteries for cleaner energy storage, lighter maintenance, and a more modern replacement path than traditional lead-acid battery setups.

Use this model when you need a 12v, 334ah, 4.28kwh, and essential series that can support mobile, marine, golf cart, backup, or off-grid electrical systems depending on the installation. The description is written for real-world buying decisions: voltage, capacity, fitment, monitoring features, and charging compatibility should all be checked against your existing equipment before purchase.

  • Core configuration: 12V, 334Ah, 4.28kWh, and Essential Series
  • Best-use applications: solar and off-grid power and backup energy storage
  • Notable features: Bluetooth monitoring support and built-in heating for cold-weather charging support
  • SKU: 12334A-MC

For the best long-term setup, pair this battery with the correct charger, cable sizing, fusing, and voltage-compatible equipment. When comparing models, focus on usable capacity, system voltage, communication features, installation space, and how the battery will be charged day to day.

Plan a lithium battery change

If you are replacing an RV lead-acid battery, our RV lead-acid to lithium guide explains charging, wiring and compatibility checks before changing chemistries.

Compare before you choose

Compare nominal voltage, stored energy, BMS current, temperature protection and communication before sizing a bank.

See the 12V 314Ah (4.02kWh) - Eco Series LiFePO4 Battery for another Epoch Batteries battery option.

Package Includes
1 Epoch 12V 334Ah MC battery (12334A-MC)
Package Includes
2 M10 stainless terminal bolts with washers
12V 334Ah (4.28kWh) Essential Series - Bluetooth & Heated LiFePO4 Battery
Selected variant SKU 12334A-MC
MODEL
Model / SKU 12334A-MC
Product Type Battery
ELECTRICAL
Series Essential Series
Battery type Heated Bluetooth deep-cycle LiFePO4 battery
Chemistry LiFePO4 / Lithium iron phosphate
Cell configuration 4S1P
Nominal voltage 12.8V
Nominal capacity 334Ah
Energy stored 4.28kWh
Operating voltage range 10.0V – 14.6V
Maximum charge voltage 14.6V
Max continuous discharge 300A
Max continuous charge current 300A per product specification table; product copy also lists 150A max continuous charge
Recommended charge rate 50% of battery or battery-bank capacity
Max discharge peak current 600A @ 10 seconds
Series connections Not supported / not listed for this 12V model
Parallel connections Max 16 batteries in parallel
System design note Use matched batteries of the same model, age, capacity, and state of charge
Bulk / absorption voltage 14.2V – 14.6V
Float voltage 13.4V – 13.8V
BMS high voltage cutoff 14.6V
Battery Features Bluetooth monitoring, Self-heating, LiFePO4 chemistry
CONNECTIONS
Victron communications Yes — battery-bank communication support for compatible Victron systems
Terminal type M10 female
PHYSICAL
Length 15.35 in / approx. 38.99 cm
Overall dimensions 15.35 in L × 8.07 in W × 11.02 in H
Weight 75 lbs / approx. 34.02 kg
Case material Metal
Enclosure protection IP21 — optimized for protected indoor use
OPERATING LIMITS
Cycle life 4,500+ cycles
Charge temperature range -20°C to 55°C / -4°F to 131°F, with heating
Discharge temperature range -20°C to 60°C / -4°F to 140°F
Recommended storage temperature 0°C to 35°C / 32°F to 95°F
Battery charge temperature range 0°C to 55°C / 32°F to 131°F once cells are at charging temperature
Battery discharge temperature range -20°C to 60°C / -4°F to 140°F
Overcharge protection Yes
Over-discharge protection Yes
Short-circuit protection Yes
• Capacity additive — e.g. 2 × 334 Ah = 668 Ah (8.55 kWh); 4 × 334 Ah = 1,336 Ah (17.1 kWh).
• Current output additive — e.g. 2 × 300 A = 600 A continuous; 4 × 300 A = 1,200 A continuous.
• Voltage unchanged — still 12.8 V nominal.
• Charger → Battery type Lithium
• ESS → Sustain voltage 12.4 V (if using ESS assistant)
• Storage temperature 32°F to 95°F (0°C to 35°C). Avoid direct sun.
📘
User Manual
Installation instructions, setup guidance, operation, and troubleshooting.
View PDF
📄
Specification Sheet
Technical specifications, dimensions, electrical ratings, and certifications.
View PDF

Frequently Asked Questions

Clear answers to common questions about this product, setup, compatibility, and use.

What are the core ratings of the Epoch 12334A-MC? This model is listed at 12.8V, 334Ah, 4.28kWh. Actual usable energy and runtime depend on BMS limits, temperature, discharge rate, system settings, and the reserve maintained by connected equipment. Which features are included on this exact Epoch battery? The exact listing identifies Bluetooth monitoring, built-in heating. Confirm app, heater, enclosure, and cranking requirements against this model rather than assuming every Epoch battery includes the same features. What charger should I use with the Epoch 12334A-MC? Use a charger with the correct battery chemistry, nominal voltage, charge profile, and current for this exact battery. The BMS limit, cable size, fuse protection, and lowest charging temperature must also be respected. Can this battery be connected in series or parallel? Only use the series and parallel configurations explicitly permitted in the current Epoch manual for this exact model. Match model, capacity, age, firmware, state of charge, cabling, and protection before combining batteries. Will this battery work with any inverter or vehicle? No. Verify nominal voltage, continuous and surge current, communication requirements, physical fit, charging source, cranking requirements, and terminal configuration for the complete installation. What service life and warranty should I expect? Epoch lists 4,500+ cycles. The listed warranty is 11-year manufacturer warranty. Actual life depends on temperature, depth of discharge, current, charging, storage, and correct installation.