BSLBATT HV Blue Stack S205

The BSLBATT HV Blue Stack S205 is a high-voltage, modular lithium-ion energy storage solution designed for demanding commercial and industrial (C&I) and utility applications. The S205 offers a flexible capacity range of 105kWh to 167.9kWh per unit, with scalability up to 2MW in parallel, making it a reliable solution for microgrids, solar farms, community power projects, data centers, and EV charging infrastructure.

Built with Lithium Iron Phosphate (LFP) chemistry, the BSLBATT HV Blue Stack S205 prioritises safety, long cycle life, and performance stability. Its multi-tier master-slave Battery Management System (BMS) ensures optimised operation across every cell, providing intelligent control, minimal maintenance, and extended lifespan.

In grid support, renewable energy integration, or mission-critical backup power applications, the BSL Battery HV Blue Stack S205 sets a new standard for large-scale energy storage.

Key Specifications

  • Capacity Range: 105kWh – 167.9kWh (models S205-10 through S205-16)
  • Battery Chemistry: LFP (Lithium Iron Phosphate)
  • Cycle Life: >6,000 cycles @ 80% Depth of Discharge (DoD)
  • Nominal Voltage: 512V – 819.2V (depending on model)
  • Energy Density: >125Wh/kg
  • Protection Rating: IP20
  • Weight: 1,093kg (S205-10) to 1,433kg (S205-16)
  • Dimensions (per module): ~501mm x 721mm x 250mm
  • Communication Protocols: CAN-Bus, Modbus RTU (250/500 kbps)
  • Safety: Integrated aerosol fire suppression system
  • Warranty: 10 years

Product Benefits

  • Modular design allows quick installation and seamless capacity expansion.
  • A long operational life, combined with a substantial 10-year warranty, reduces the total cost of ownership and maximises ROI.
  • Built-in aerosol fire suppression in every module improves safety, protecting personnel and infrastructure.
  • The BSLBATT HV Blue Stack S205 supports renewable energy integration by storing excess solar and wind energy for reliable dispatch.
  • Optimised for behind-the-meter microgrids, solar+storage, and critical C&I backup, lowering total cost of ownership.



These BSLBATT HV Blue Stack S205 systems integrate seamlessly into modern grid management platforms through industry-standard communication protocols. Designed as a sustainable investment, the modular and smart system architecture ensures long-term scalability and adaptability.

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