Sunsynk W5.3 5.32kWh Battery (up to 170kWh in Parallel) Key benefits 5.32kWh LiFePO₄ wall‑mount battery module for 48V Sunsynk hybrid systems, with up to 170kWh achievable using 32 units in parallel. High cycle life (≥6000 cycles at 90% DOD) to support long‑term residential or light commercial energy storage. IP65 enclosure and integrated DC 2P 125A circuit breaker for outdoor‑capable, tidy installations. Brief description The Sunsynk W5.3 5.32kWh Battery System is a 51.2V LiFePO₄ module designed for use with compatible Sunsynk inverters in home and small commercial energy storage systems. Each unit provides 5.32kWh total and 4.79kWh usable DC energy, and up to 32 batteries can be paralleled to build systems up to 170kWh. Wall‑mounting and 19‑inch cabinet support, plus CAN and RS485 communication, make the W5.3 a flexible option for plant rooms, garages and small ESS racks. Key features 51.2V nominal LiFePO₄ chemistry with 104Ah capacity and 5.32kWh energy per module. Recommended 50A charge/discharge current, with up to 100A continuous and 150A peak for 2 minutes at 25°C. Wall‑mount design with 440 × 620 × 135mm casing and integrated status LEDs for SOC, operation, alarm and protection. IP65‑rated enclosure, operating temperature from ‑10°C to +55°C for charging and ‑20°C to +55°C for discharging. CAN2.0 and RS485 communication ports for integration with Sunsynk inverters and compatible monitoring systems. Technical specifications Main parameters Battery Chemistry LiFePO₄ Capacity (Ah) 104 Scalability Max. 32 pcs in parallel (170kWh) Nominal Voltage (V) 51.2 Operating Voltage (V) 43.2~57.6 Energy (kWh) 5.32 Usable Energy (kWh) 4.79 Recommended Charge/Discharge Current (A) 50 Max. Charge/Discharge Current (A) 100 Peak Current (2 mins, 25°C) (A) 150 Other parameters Recommended Depth of Discharge 90% Dimension (W × H × D) 440 × 620 × 135 mm (doesn't include terminals, circuit breaker, hanging boards, and pedestal) Weight 46 kg Master LED Indicator 5 LED (SOC 20%~100%); 3 LED (working, alarming, protecting) IP Rating of Enclosure IP65 Working Temperature Charge: -10°C ~ +55°C; Discharge: -20°C ~ +55°C Storage Temperature 0°C ~ +35°C Humidity 5% ~ 95% Altitude ≤2000m Cycle Life ≥6000 (25±2°C, 90%DOD, 0.5C/1C, 70%EOL) Installation Wall‑Mounted (supports 19‑inch standard cabinet) Communication Port CAN2.0, RS485 Life Cycle Power During Warranty Period 16MWh @ 70%EOL Certification IEC62619, CE, UK, CEC, UN38.3 Notes from manufacturer Usable Energy note DC usable energy, test conditions: 90% DOD, 0.5C charge & discharge at 25°C. System usable energy may vary due to system configuration parameters. Current note The current is affected by temperature and SOC. Warranty note The warranty is due whichever is reached first: warranty period or energy throughput. Shipping Shipping is available to the UK, Ireland, Africa, the Caribbean and worldwide. If the shipping rate is not shown at checkout, please contact us on +44 2080640335 or [email protected] for a tailored shipping quote. UK expert support UK expert support is available to help with system sizing, inverter compatibility and communication settings when using the Sunsynk W5.3 5.32kWh Battery System with new or existing Sunsynk installations. For multi‑battery banks or integration into larger ESS cabinets, we recommend installation and commissioning via our trusted partners to ensure correct protection, configuration and safe operation. You can contact us by phone, email or live chat, or visit our office for an in‑person consultation to discuss your project and preferred Sunsynk battery layout. Documents available for download Sunsynk W5.3 5.32kWh battery datasheet Sunsynk W‑Series installation / user manual
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