51.2v300ah
Nominal Voltage 51.2V
Operating Voltage Range 44.8V – 57.6V
Capacity 300Ah
Energy 15.36kWh
Charge Voltage 57.6V ± 0.2V
Discharge Cut-off Voltage 44.8V
Standard Charge Current 60A (0.2C)
Max Charge Current 100A (0.33C)
Standard Discharge Current 60A (0.2C)
Max Continuous Discharge Current 100A (0.33C)
Peak Discharge Current 150A (5 seconds)
Charge Temperature 0°C – 55°C
Discharge Temperature -20°C – 55°C
Cycle Life 6,000+ cycles @ 80% DoD
Calendar Life 15+ years
Self-Discharge Rate ≤3% per month
Round-Trip Efficiency ≥95%
The V-Link E 51.2V 300Ah LiFePO4
battery delivers 15.36kWh of reliable, long-lasting energy storage — the sweet spot for homeowners who need maximum capacity without the premium price of the highest-capacity models. Built on the same Grade A LiFePO4 platform as our flagship 314Ah unit, the 300Ah battery combines 6,000+ cycle performance with universal inverter compatibility and smart BMS monitoring.
Weighing approximately 113kg with a compact wall-mounted form factor, the BU-ESS-15K-300 installs cleanly in any home setting. Its CAN/RS485 communication interface ensures plug-and-play integration with all major hybrid inverters: Growatt, Deye, Sungrow, SMA, Victron, GoodWe, and Huawei.
Whether you're powering a large residential villa, a small commercial space, or a critical backup system, the 51.2V 300Ah battery provides the energy independence and security that modern homes demand.
KEY HIGHLIGHTS
• 15.36kWh Usable Capacity — Powers a 3-4 bedroom home through the night
• 6,000+ Cycles at 80% DoD — 15+ years of reliable daily cycling
• Grade A LiFePO4 Cells — The safest lithium chemistry, zero thermal runaway risk
• Smart BMS with Mobile APP — Monitor SOC, voltage, temperature, and cycles in real time
• Universal Inverter Compatibility — Growatt, Deye, Sungrow, SMA, Victron, GoodWe, Huawei
• Parallel Ready — Connect up to 16 units for up to 245kWh total storage
• 10-Year Warranty — Industry-leading coverage with full factory support
• IP54 Indoor Rating — Clean, safe installation in any utility space
