SolaX BMS Parallel Box II G2 for T58 Batteries
The SolaX BMS Parallel Box II G2 connects SolaX Triple Power T58 batteries in parallel in a Master/Slave configuration (a T58 Master battery is required). It lets you expand storage capacity beyond a single tower, with system management and integrated protections.
The SolaX BMS Parallel Box II G2 is the accessory that connects two or more SolaX Triple Power T58 battery towers in parallel, so the storage capacity of the system can grow beyond the limit of a single tower. It works in a Master/Slave configuration and requires a T58 Master battery in the system.
What is the Parallel Box for?
A single Triple Power tower has a maximum number of modules. When more capacity is needed than one tower can hold, the towers are connected in parallel and a device is required to coordinate them and provide the system protections at the connection point. That device is the BMS Parallel Box II G2: it manages the parallel connection of the T58 banks and keeps the whole storage system working as one.
Compatibility: check before ordering
This is not a universal component. Battery series, hardware generation (the G2 here), wiring, BMS and inverter must belong to the combinations foreseen by the manufacturer. The "G2" version is intended for T58 Master/Slave configurations: verifying the exact model before purchase avoids system faults and warranty problems. If in doubt, send MR WATT the details of the components already installed.
Technical specifications
| Product | SolaX BMS Parallel Box II G2 |
| Function | Parallel connection of SolaX Triple Power T58 battery towers |
| Configuration | Master/Slave (T58 Master required) |
| Dimensions | 334 × 368 × 153 mm |
| Weight | 8.7 kg |
| Installation | Qualified technician |
Frequently asked questions
What is the Parallel Box II G2 for?
It connects several SolaX Triple Power T58 battery towers in parallel to expand the total storage capacity beyond a single tower, coordinating the banks in a Master/Slave configuration.
Do I need a T58 Master battery?
Yes. The G2 version works in Master/Slave configuration and requires a T58 Master battery in the system. Check that your batteries belong to the T58 series and the combination is one foreseen by SolaX.
Is it compatible with any SolaX battery?
No. It is specific to the T58 series in the G2 generation. Battery series, hardware generation, BMS and inverter must match the manufacturer's approved combinations. Confirm the exact model before ordering.
Who should install it?
Installation must be carried out by a qualified technician, checking tightening torques, protections, polarity, configuration and correct coordination with the system, following the manufacturer's instructions.
What should I check on delivery?
Check that the packaging, model and supplied items match the order and show no visible damage. Keep the manual and documents, and do not energise the product if the enclosure or connectors are damaged.
