Hoymiles has launched the HiBattery 4020 hybrid series for residential storage, including the PV-coupled 4020 X and AC-coupled 4020 AC designed for retrofit solar systems. Both models are modular and use LiFePO₄ cells with advanced safety features.
Chinese inverter and battery manufacturer Hoymiles has unveiled a hybrid battery series for residential applications.
“The series features Hoymiles first hybrid model HiBattery 4020 X which is directly connected to PV modules, and the AC-coupled model HiBattery 4020 AC which is paired with existing home solar system to add the storage function,” the company said in a statement.
The HiBattery 4020 AC provides a base capacity of 1.92 kWh using LiFePO₄ cells rated for over 6,000 cycles. The system is modular and can scale from two units (3.84 kWh) up to six units (11.52 kWh), with total output capacity reaching up to 6 kW depending on configuration. Each unit delivers up to 800 VA AC output, supporting applications such as self-consumption optimization and partial home backup.
The system reportedly achieves up to 96.5% bidirectional efficiency and around 86% AC round-trip efficiency. Safety is ensured through automotive-grade LiFePO₄ cells rated for over 6,000 cycles, a 48-layer BMS, dual MCU protection, and environmental stress testing for heat, humidity, and vibration. It operates at below 17 dB, enabling near-silent indoor use.
