AKAIYAI StackFlex Dynamic A51R100-P 5.12kWh 51.2V Modular Lithium Battery

The StackFlex Dynamic A51R100-P by Anhui Kaiya Energy Technology Co., Ltd. is a high-performance 5.12kWh modular lithium battery designed for scalable residential and commercial energy storage systems.

With 51.2V nominal voltage, 100A rated current, and 6000+ cycle life, this battery delivers long-lasting, efficient, and reliable energy storage. It supports industry-standard CAN and RS485 protocols, ensuring broad inverter compatibility.

Each module is easy to install, supports up to 16 parallel connections, and can scale from 5kWh to 40kWh, making it an ideal fit for solar PV systems, off-grid homes, and hybrid inverters.

Key Features & Benefits

• 5.12kWh energy storage (Expandable to 40kWh with up to 16 units)
• 100A continuous discharge current with ±3% SOC accuracy
• Over 6000 cycles at 90% DOD, up to 15-year lifespan
• Built-in BMS (Model: 14S100A) ensures smart protection & long battery health
• Communication via RS485, CAN, and RS232 – supports most hybrid inverters
• IP20-rated casing with natural convection cooling
• Fast & safe charge/discharge efficiency:
  • Charge Efficiency: 100%@0.5C
  • Discharge Efficiency: 96%–99%@0.5C
• Environmentally robust: -10°C to +55°C charge range, up to 3000m altitude
• Modular and compact metal case – ideal for stacking and space saving