Increase the capacity of your DEYE Energy Storage System with the DEYE AI-W5.1-B 5.12kWh Battery Module. Designed for modular expansion, each battery module adds 5.12kWh of nominal energy, allowing you to grow your storage system as your energy needs increase. Built using Lithium Iron Phosphate (LiFePO₄) technology, the AI-W5.1-B offers exceptional safety, long service life, and reliable performance for residential and commercial solar energy storage systems. The intelligent battery architecture supports automatic networking, remote monitoring, firmware upgrades, and seamless integration with compatible DEYE hybrid inverters. This listing is for one (1) DEYE AI-W5.1-B Battery Module only. Not Included: Power Distribution Unit (PDU) Battery Base Battery-to-Inverter Cable Kit Hybrid Inverter Mounting Hardware This battery module cannot operate as a standalone battery and must be installed as part of a compatible DEYE AI-W5.1-B battery system. The PDU, base and connection cables are sold separately or included with complete battery systems. Key Features 5.12kWh Nominal Battery Capacity Premium LiFePO₄ (Lithium Iron Phosphate) cells Safe cobalt-free battery chemistry Expandable modular battery system Stack 1–6 battery modules per system Supports up to 6 battery clusters (36 modules) for a maximum 184kWh capacity Built-in intelligent Battery Management System (BMS) Automatic battery networking Remote monitoring and firmware upgrades High discharge capability IP65 rated when installed in the complete battery system Wall-mounted or floor-mounted installation 10-Year Manufacturer's Warranty Easily Expand Your Battery Storage The AI-W5.1-B is designed to grow with your energy requirements. Battery Modules Nominal Capacity Usable Capacity* 1 5.12kWh 4.6kWh 2 10.24kWh 9.2kWh 3 15.36kWh 13.8kWh 4 20.48kWh 18.4kWh 5 25.60kWh 23.0kWh 6 30.72kWh 27.6kWh *Usable energy based on 90% depth of discharge. Premium LiFePO₄ Battery Technology The AI-W5.1-B uses advanced Lithium Iron Phosphate battery cells, providing: Superior thermal stability Longer battery lifespan High energy density Excellent cycle life Maintenance-free operation Environmentally friendly cobalt-free chemistry Intelligent battery protection via integrated BMS Built for Australian Conditions Designed for reliable performance in demanding environments. IP65 weather resistance (when installed as a complete system) Natural cooling Charge temperature: 0°C to 55°C Discharge temperature: -20°C to 55°C Wall or floor mounting Remote monitoring support Automatic battery module networking Technical Specifications Feature Specification Model AI-W5.1-B Battery Chemistry Lithium Iron Phosphate (LiFePO₄) Nominal Energy 5.12kWh Usable Energy 4.6kWh Nominal Voltage 51.2V Operating Voltage 43.2V – 57.6V Capacity 100Ah Recommended Charge/Discharge Current 50A Maximum Charge/Discharge Current 100A Peak Current (10 Seconds) 150A Recommended Depth of Discharge 90% Battery Module Dimensions 720 × 255 × 300mm Battery Module Weight 53kg Communication CAN 2.0, RS485 Cycle Life ≥6,000 Cycles Energy Throughput 16MWh Installation Wall or Floor Mounted Warranty 10 Years Package Includes 1 × DEYE AI-W5.1-B 5.12kWh Battery Module Not Included AI-W5.1-PDU1-B Power Distribution Unit AI-W5.1 Battery Base AI-W5.1-PCable1500 Battery Cable Kit Hybrid Inverter Compatible With Designed for use with: DEYE AI-W5.1-B Battery System DEYE AI-W5.1-PDU1-B Power Distribution Unit DEYE AI-W5.1 Battery Base Compatible DEYE Hybrid Inverters Why Buy from Solar Battery Supermarket? Genuine DEYE Products Australian Warranty Support Expert Technical Advice Australia-Wide Delivery Competitive Pricing Professional After-Sales Support Important: This is an expansion battery module only. A compatible DEYE AI-W5.1-B system with the required PDU and battery base is needed for operation. Installation must be carried out by a qualified installer in accordance with Australian standards.