Solax BMS-Parallel Box-II-G2 Energy Storage Expansion Module (IP55)

The Solax BMS-Parallel Box-II-G2 expansion module enables the expansion of energy storage systems based on X1-Hybrid and X3-Hybrid inverters. The device allows parallel connection of a larger number of T-BAT H 5.8 batteries, increasing the total capacity of the entire system.

The Solax BMS-Parallel Box-II-G2 module is designed to increase the capacity of residential energy storage systems. In installations with X1-Hybrid inverters, it allows the connection of up to 6 batteries, while in X3-Hybrid systems it supports up to 8 modules. The device optimizes system performance, prolonging battery life and preventing inverter downtime in the event of an error in one of the circuits. The module communicates with the system via standard CAN 2.0 and RS485 interfaces.

Key features

• Increases the maximum number of supported T-BAT H 5.8 batteries (up to 6 for X1-Hybrid, up to 8 for X3-Hybrid)
• Alternating operation of dual modules, protecting against failures and extending service life
• Integrated LED indicators showing operation mode and capacity level (25%, 50%, 75%, 100%)
• Built-in ON/OFF button and automatic circuit breaker
• Sealed enclosure with an IP55 protection rating and category II surge protection

Technical data

Dimensions (L x W x H)	368 x 310 x 140 mm
Net weight	5.2 kg
Protection rating	IP55
Recommended charge / discharge current	25 A
Maximum charge / discharge current	35 A
Communication with inverter	CAN 2.0 / RS485
Communication with BMS	RS485
Operating temperature range (full load)	5-48 °C
Maximum operating altitude	< 2000 m