Sunsynk X-Series 5.12 kWh 51.2 V Lithium-Ion Battery
The Sunsynk X-Series 5.12 kWh 51.2 V Lithium-Ion Battery is a high-performance LiFePO₄ (Lithium Iron Phosphate) energy storage solution designed for residential and light commercial solar and backup power systems. Offering 5.12 kWh of nominal capacity, 95% depth of discharge, and an impressive 6,000-cycle lifespan, it provides reliable, long-lasting energy storage for both on-grid and off-grid applications.
With its IP65-rated weather-resistant enclosure, slim wall-mounted design, and integrated Battery Management System (BMS), the X-Series battery is ideal for installations where space, safety, and performance are essential.
Key Features
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5.12 kWh (51.2 V, 100 Ah) LiFePO₄ battery
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Up to 4.864 kWh usable capacity with 95% Depth of Discharge
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1C continuous discharge capability
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Up to 8 batteries in parallel for a total capacity of 40.96 kWh
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Long service life of 6,000 cycles
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IP65-rated enclosure suitable for indoor and outdoor installation
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Compact wall-mounted design
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Integrated Battery Management System (BMS)
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Protection against overcharge, over-discharge, overcurrent, and high/low temperatures
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Compatible with Sunsynk hybrid inverters and selected third-party systems
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10-year product warranty
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5-year extended Sunsynk inverter warranty when paired with a Sunsynk battery (subject to registration)
High-Performance Energy Storage
The Sunsynk X-Series battery delivers dependable energy storage with a 95% usable capacity, allowing homeowners and businesses to maximise the amount of stored solar energy available for everyday use and backup power.
Expandable Battery System
Designed for scalable installations, up to eight X-Series batteries can be connected in parallel, increasing total storage capacity to 40.96 kWh to meet larger residential or commercial energy demands.
Intelligent Battery Management
An advanced integrated Battery Management System (BMS) continuously monitors battery performance and provides protection against:
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Overcharging
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Over-discharging
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Overcurrent
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High temperatures
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Low temperatures
This intelligent protection helps maximise battery lifespan while ensuring safe and reliable operation.
Built for Indoor & Outdoor Installation
The battery's IP65-rated enclosure protects against dust and water ingress, making it suitable for both indoor and sheltered outdoor installations. Its wall-mounted design also helps save valuable floor space while providing a clean, professional installation.
Applications
Ideal for:
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Residential solar energy storage
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Hybrid solar systems
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Backup power systems
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Off-grid installations
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Load shedding protection
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Small commercial energy storage
Specifications
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Brand: Sunsynk
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Model: X-Series 5.12 kWh
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Part Number: SUN-X-5.12-F
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Battery Chemistry: Lithium Iron Phosphate (LiFePO₄)
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Nominal Capacity: 5.12 kWh
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Usable Capacity: Up to 4.864 kWh
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Nominal Energy: 5,120 Wh
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Nominal Voltage: 51.2 V
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Battery Capacity: 100 Ah
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Depth of Discharge (DoD): 95%
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Continuous Discharge Power: 5,120 W
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Maximum Discharge Power (5 Minutes): 5,120 W
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Surge Discharge Power (15 Seconds): 7,680 W
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Maximum Charge Power (5 Minutes): 2,560 W
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Expandable: Up to 8 batteries in parallel
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Maximum System Capacity: 40.96 kWh
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Cycle Life: 6,000 Cycles
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Ingress Protection: IP65
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Mounting: Wall Mounted
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Weight: 46 kg
Warranty
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10-Year Product Warranty
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Additional 5-Year Sunsynk Inverter Warranty when paired with a Sunsynk battery and registered within 7 days of system commissioning, subject to Sunsynk's warranty terms and conditions.
What's Included
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1 × Sunsynk X-Series 5.12 kWh 51.2 V Lithium-Ion Battery
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Integrated Battery Management System (BMS)
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Wall-mounting hardware (where supplied by the manufacturer)
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Installation documentation
Important: This battery must be installed by a qualified electrician or solar installer in accordance with local electrical regulations, applicable standards, and the manufacturer's installation guidelines. To maintain warranty coverage, the equipment warranty must be registered within 7 days of system commissioning. Failure to register the warranty within the specified period may result in the warranty being void.
