Epoch Batteries | 12V 120Ah - Group 27 - Cranking & Deep Cycle Lithium Battery (Dual Purpose)

12V 120Ah – Group 27 – Cranking & Deep Cycle Lithium Battery (Dual Purpose)

Power up your marine and RV systems with the 12V 120Ah Group 27 Cranking & Deep Cycle LiFePO4 Lithium Battery—a dual-purpose powerhouse engineered for both high-performance starting and deep-cycle energy storage. Whether you're powering an outboard up to 350HP or running essential electronics for hours, this smart, heated, and rugged battery delivers unmatched reliability, safety, and longevity.

Key Features

• Dual Purpose – Cranking & Deep Cycle:

  • Cranking Power: ~1100 CCA equivalent.

  • 800A @ 10s (SOC > 60%), 800A @ 5s (SOC < 60%), 600A @ 10s — ideal for cold starts and high-draw marine applications.

  • Deep Cycle Power: Up to 150A continuous discharge, perfect for trolling motors, inverters, and heavy-duty DC loads.

• LiFePO4 Chemistry: Safer, longer-lasting, and more efficient than traditional lead-acid or AGM batteries.

• Internal Heating: Self-heating technology allows safe charging in sub-zero temperatures — perfect for cold-weather boating or off-grid winter use.

• 6000+ Cycle Life: Up to 6X the lifespan of lead-acid batteries, offering long-term reliability with zero maintenance.

• Smart Bluetooth Monitoring:

  • Works with iOS & Android apps.

  • Real-time monitoring of SOC, temperature, voltage, cycle count, and more.

  • Over-the-air firmware updates via the Epoch Pro App for future upgrades.

  • Adjustable high-voltage cutoff from 14.6V to 15.4V via app for tailored performance.

• Victron & CANBus Compatible:

  • Seamless closed-loop communication with Victron Cerbo GX.

  • Optimize charging, monitoring, and integration with multi-battery systems.

• Optional External Touchscreen Gauge: Add a sleek, touchscreen battery monitor for intuitive readouts at a glance.

• Rugged & Waterproof Design:

  • IP67 Rated — Fully dustproof and waterproof.

  • Ideal for harsh marine, RV, and off-grid environments.

• Scalable Configuration:

  • Up to 4 batteries in series (48V systems).

  • Up to 16 batteries in parallel for large energy banks.

• Weight & Dimensions:

  • 29.7 lbs

  • 12.25" (L) x 6.75" (W) x 9" (H) — Group 27 size.

• 11-Year Manufacturer Warranty: Industry-leading protection ensures long-term peace of mind.

What's Included

• 1 x Inter-communication cable
• 1 x Battery
• 2 x Screws

Specification

CONFIGURATION

• Cell Configuration: 4S4P
• Chemistry: LiFePO4

CURRENT

• Ah Capacity: 120Ah
• Max Continuous Discharge Amps: 150A
• Max Charge Current Amps: 100A
• Max Discharge Peak Current Amps: 800A @ 10s
• Series | Parallel: Max (4) in Series, Max (16) in Parallel

VOLTAGE

• Voltage: 12.8V
• Max Charge Voltage: 15.4V
• Operating Voltage Range: 10.0 - 15.4V

TEMPERATURE

• Charge Temp Range: -20°C (-4°F) / 55°C (131°F) (with heating)
• Discharge Temp Range: -20°C (-4°F) / 60°C (140°F)
• Storage Temp: 0°C (32°F) / 35°C (95°F)
  

Manuals & Downloads

User Manual
Data Sheet