The itel Marathon S51314 LiFePO₄ Battery System is a premium energy storage solution engineered for long-lasting performance, safety, and scalability. Built using Grade-A LiFePO₄ cells, it delivers exceptional durability, stable output, and enhanced thermal safety for demanding home and commercial energy applications.

With a massive 314Ah capacity and approximately 16kWh of usable energy, the Marathon S51314 is ideal for solar backup systems, hybrid inverter setups, and off-grid installations requiring dependable long-duration power.

Designed with an advanced CCS busbar structure, the battery ensures better current flow, lower resistance, and improved heat dissipation compared to traditional welded designs. Combined with its natural cooling architecture, the system operates quietly without fan noise—perfect for indoor or bedroom installations.

The integrated Smart BMS (Battery Management System) continuously monitors voltage, current, and temperature while providing multi-layer protection against over-voltage, over-current, overheating, and short circuits.

Supporting RS485 and CAN communication, the Marathon S51314 is compatible with approximately 99% of mainstream inverters, ensuring seamless integration into modern energy systems.

Built for expansion, the battery supports automatic parallel connection of up to 32 units, making it suitable for everything from single-home backup to large-scale commercial energy storage deployments.

Key Features

• 16kWh High-Capacity Energy Storage
• 51.2V 314Ah Grade-A LiFePO₄ Cells
• 6000+ Cycle Life for Long-Term Reliability
• Smart BMS with Multi-Level Protection
• Natural Cooling – Silent Operation
• CCS Busbar Design for Better Thermal Performance
• Supports Up to 32 Batteries in Parallel
• RS485 + CAN Communication Support
• Compatible with Most Mainstream Inverters
• High Surge Capability for Heavy Loads
• Ideal for Solar & Backup Energy Systems