5m power line B T58 BAT-BAT
The SolaX 5m Power Line B T58 BAT-BAT is the original negative power cable for cascading connection between SolaX Triple Power T-BAT H 5.8 (T58) battery modules. Length: 5 meters, pre-crimped terminals with quick locking. Always use in combination with the Power Line A (positive) to complete the DC circuit between battery modules.
The SolaX 5m Power Line B T58 BAT-BAT is the original SolaX negative 5-meter power cable for daisy-chaining battery modules in the Triple Power T-BAT H 5.8 (T58) series. It carries DC current from the negative terminal of one battery module to the negative terminal of the next, completing the DC circuit in series between storage units together with the Power Line A (positive).
What is the Power Line B BAT-BAT for?
In multi-battery T58 configurations, the negative cable (Power Line B) connects the "-" terminal on the right side of one module to the "-" terminal on the left side of the next module. Proper management of the negative pole is essential for system balancing: an uncalibrated connection can compromise BMS management and cause errors or overheating.
Technical Specifications
| Pole | Negative (black) |
| Length | 5 meters |
| Application | Battery-to-battery (BAT-BAT) daisy-chain connection |
| Compatibility | SolaX Triple Power T-BAT H 5.8 (T58) and HV11550 slave modules |
| Terminals | Pre-crimped with quick-lock system |
| Insulation | High resistance for continuous high DC currents |
| Certification | Original SolaX accessory |
When is the 5-meter cable needed?
The standard cables included in the T58 kit cover short distances between adjacent modules. The 5-meter cable is needed when battery modules are installed on separate walls or columns, with routes that require conduits. It must always be used together with the Power Line A BAT-BAT (positive) of the same length, to ensure equivalent resistance on both poles and proper BMS operation.
Frequently Asked Questions
Can I use the Power Line B BAT-BAT without the Power Line A (positive)?
No. DC wiring always requires both poles: positive (Power Line A) and negative (Power Line B, this product). They must be the same length to ensure equivalent resistance on both paths. Using different lengths can cause imbalances in the storage system and anomalies in the BMS.
Is this BAT-BAT cable different from the Power Line B BAT-INV (battery-inverter)?
Yes. The Power Line B BAT-BAT (this product) has connectors for daisy-chaining battery modules. The Power Line B BAT-INV has different connectors for connecting the master battery to the SolaX inverter. They are not interchangeable: always check the correct application before purchasing.
How many Power Line B BAT-BAT cables are needed to expand the T58 system?
One for each connection between consecutive modules. In a configuration with a T58 master + 3 HV11550 modules (maximum three-phase, 23.2 kWh total), you need 3 Power Line B cables and 3 Power Line A cables, plus 3 Comm Line cables for RS485 communication. All accessories must be the same length for uniform wiring.
Is the Power Line B T58 5m compatible with HV11550 slave modules?
Yes. The Power Line B T58 BAT-BAT is compatible with the T-BAT H 5.8 master battery and all HV11550 slave modules in the Triple Power series. The connectors are identical to those used in the cables included in the original kit, ensuring complete mechanical and electrical compatibility.
Why is it important to use the original SolaX cable for the negative pole?
The negative pole in high-voltage DC systems requires certified insulation to prevent electrical arcs and leakage. Using non-original cables with insulation not calibrated for the DC currents of the T58 system can cause overheating, uncontrolled discharges, and void the SolaX storage system warranty.
