Epoch 12V 300Ah LiFePO4 Battery – Dual Purpose, Cranking, Deep Cycle (Pro Series)

Description

The Epoch 12V 300Ah Pro Series LiFePO4 Battery is a high-performance lithium solution engineered for marine, RV, and off-grid systems that demand both deep cycle energy and reliable engine starting capability.

Designed as a true dual-purpose battery, it delivers powerful cranking output alongside sustained energy storage. With integrated Bluetooth monitoring, internal heating, and Victron communication compatibility, it seamlessly integrates into advanced electrical systems while maintaining dependable performance in harsh environments.

With 300Ah of capacity and 3840Wh of energy, this battery is built for demanding applications including marine vessels, off-grid systems, and high-output power setups. Its high discharge capability and expandable configuration make it ideal for both energy storage and engine starting needs.

Best For

• Marine and offshore vessels (dual-purpose systems)
• Engine starting with deep cycle power
• High-performance RV and van builds
• Off-grid systems requiring high discharge output
• Advanced Victron-integrated power systems

Victron System Integration Explained

Features

• Dual Purpose Power System
  Designed for both engine starting and deep cycle applications, delivering reliable cranking power and sustained energy output.
• High Cranking Performance
  Provides up to 1,000A peak discharge at 5 seconds and 800A at 10 seconds for demanding engine starts.
• High Continuous Output
  Supports up to 300A continuous charge and discharge for high-load applications.
• Victron Communication Integration
  CANBUS communication allows seamless integration with Victron systems and advanced energy setups.
• Bluetooth Monitoring
  Monitor battery status, voltage, and performance through iOS and Android apps.
• Internal Heating System
  Allows safe charging in cold environments, improving performance in sub-zero conditions.
• Advanced Battery Management System (BMS)
  Protects against overcharge, over-discharge, short circuit, and temperature extremes.
• IP67 Waterproof Construction
  Fully sealed enclosure protects against water, dust, and harsh environmental conditions.
• Expandable Power System
  Supports up to 4 batteries in series and up to 16 in parallel for large-scale systems.
• Extended Cycle Life
  Delivers 6,000+ cycles for long-term durability and performance.

Specifications

Official Specification Sheet (PDF)
Official User Manual (PDF)

Warranty
11-Year Manufacturer Warranty

Battery Type
LiFePO4 Lithium Battery (Dual Purpose)

Rated Capacity
300Ah (3.84kWh)

Voltage
12.8V nominal

Cycle Life
6,000+ cycles at 80% depth of discharge

Max Continuous Discharge
300A

Max Peak Discharge
1,000A (5 seconds), 800A (10 seconds)

Max Charge Current
300A

Charge Voltage
14.2V – 14.6V

Float Voltage
13.4V – 13.8V

Operating Temperature
Charge: -20°C to 55°C (with heating)
Discharge: -20°C to 60°C

Storage Temperature
0°C to 35°C recommended

Terminals
M8 bolt

IP Rating
IP67

Dimensions
19.70" L × 10.5" W × 9.75" H

Weight
81 lbs

Connectivity
Bluetooth (iOS & Android), CANBUS (Victron Compatible)

Expandable Configuration
Max 4 in series / Max 16 in parallel

Protection
Overcharge, over-discharge, short circuit, overcurrent, high & low temperature protection

Certifications
UL1973, RoHS, CE

Recommended Charger
12V LiFePO4 compatible charger