12V 135Ah LiFePO4 Lithium Battery - Group 31 Size with F13 Terminals - Perfect for Marine, RV, Solar & Off-Grid Power Systems

Battery for LFP12.8V135AH (Group 31) – 12.8V, 135Ah (1728Wh)

Heavy-Duty Lithium Power for Demanding Energy Needs

Unleash serious power with the LFP12.8V135AH – a 12.8V, 135Ah lithium iron phosphate (LiFePO4) battery built for peak performance, rock-solid reliability, and serious longevity. Whether you're upgrading your off-grid setup, RV, marine system, or solar bank, this Bluetooth-enabled powerhouse gives you safe, efficient, and intelligent energy storage in a rugged Group 31 format.

• Massive Energy Output: 12.8V, 135Ah (1728Wh) to handle high-demand loads.
• Premium Efficiency: ?98% round-trip efficiency keeps your system running smoother and longer.
• Durable & Lightweight: Weighs only 19 kg (41.89 lbs), yet delivers heavyweight performance.
• Advanced Battery Management: Bluetooth monitoring for real-time stats like voltage, capacity, cycles, temperature, and protection alerts.
• Self-Heating Function: Auto-heats in cold climates (-20°C to +10°C) for year-round reliability.
• Rugged Build: Group 31 case (13 x 6.77 x 8.66 in / 330 x 172 x 214 mm), sealed to IP65 for dust and water protection.
• Safe & Certified: Built with Grade A Prismatic LiFePO4 cells. Certified to UN38.3, CE (battery), and UL1642 (cells).

Performance Highlights:

• Max Discharge Current: 100A continuous, 270A pulse (10s)
• Max Charging Current: 100A (recommended: 10A–67.5A)
• Parallel & Series Ready: Supports 2 units in parallel and 4 in series.
• Cycle Life: Long lifespan with stable performance even in extreme environments (-20°C to +55°C / -4°F to +131°F).
• Smart Protection: Integrated alarms and protection for over/under voltage, temp, current, and short circuit.

What You Need to Know:

• Some assembly required. Re-use your existing connectors and cables.
• Canadian Company: We ship directly from Canada.
• Warranty: Backed by a 1-year warranty with 30 days to return for a refund.