SolaX Triple Power 5.8kWh SLAVE Battery (V3)
Improved performance and flexibility with the latest SolaX Triple Power 5.8kWh SLAVE Battery (V3). This high-voltage lithium iron phosphate (LiFePOโ) battery offers increased usable capacity, improved environmental protection and built-in battery heating as standard for the UK market.
The TP58 V3 SLAVE battery provides 5.8kWh nominal capacity with an increased 95% Depth of Discharge and a 10-year warranty. It is designed to expand existing SolaX Triple Power systems that already include a TP58 Master battery.
Important: This is a SLAVE battery and cannot operate on its own. A TP58 Master battery is required. You cna purchase a master battery HERE.
Compatibility: T58 V3 batteries maintain compatibility with existing V2 systems, allowing seamless replacement or expansion of installed systems.
Battery Configuration Limits (Important)
- Minimum Requirement
- 1x TP58 Master Battery (V2 or V3)
- Maximum Batteries per Inverter (Without Parallel Box)
- Single Phase: 1x Master + up to 2x Slave batteries
- Three Phase: 1x Master + up to 5x Slave batteries
Note: The increased limit of 6 batteries per cluster applies to three-phase systems only.
Single-phase systems retain the same limits as previous generations.
Important: The T58 V3 battery is not compatible with the current SolaX BMS Parallel Box G2.
Key Features of the SolaX Triple Power 5.8kWh SLAVE Battery (V3)
- 5.8kWh nominal capacity per battery
- 95% Depth of Discharge (DoD) for higher usable energy
- Built-in battery heating (standard for UK market)
- IP66 Rated โ enhanced dust and water resistance
- High voltage LiFePOโ chemistry for safety and efficiency
- Up to 6 batteries per cluster (three-phase systems only)
- Aerosol fire suppression for enhanced safety protection
- 50A peak discharge current (short duration)
- 6000+ life cycles at 95% DoD
- Wall or floor mountable
- CAN / RS485 communication
- 10-year manufacturer warranty
Whatโs Changed? โ T58 V2 vs V3
The SolaX Triple Power T58 V3 introduces several important upgrades over the previous V2 generation, while maintaining compatibility for straightforward system upgrades and replacements.
| Feature | T58 V2 | T58 V3 | Improvement |
|---|---|---|---|
| Depth of Discharge | 90% | 95% | Higher usable battery capacity |
| Max Batteries per Cluster | 4 units | 6 units | Greater scalability (three-phase systems) |
| Ingress Protection | IP65 | IP66 | Improved dust and water resistance |
| Battery Heating | Not included | Standard (UK) | Improved cold-weather performance |
| Dimensions (WxHxD) | 474 ร 708 ร 193 mm | 474 ร 715 ร 150 mm | Thinner, unified design |
| Weight (Slave) | 68.5 kg | 59.5 ยฑ 1 kg | Lighter and easier to install |
| Peak Discharge Current | โ | 50A @ 20s | Improved short-duration output |
| Fire Suppression | โ | Supported | Enhanced system safety |
Important notes:
โข T58 V3 maintains compatibility with existing V2 systems.
โข The 6-battery cluster limit applies to three-phase systems only.
โข T58 V3 batteries are not compatible with the current BMS Parallel Box G2.
Physical Specifications
- Dimensions (WxHxD): 474 ร 715 ร 150 mm
- Weight: 59.5 ยฑ 1 kg
Installation & Monitoring
- Plug-and-play installation when paired with TP58 Master battery
- Remote monitoring, diagnostics and firmware updates via SolaX Cloud
- Battery heating allows improved performance in cold environments
SolaX Triple Power V3 Warranty
The SolaX Triple Power 5.8kWh SLAVE Battery (V3) includes a full 10-year warranty and is rated for over 6000 cycles at 95% Depth of Discharge.
Compatibility
- Compatible with SolaX high-voltage hybrid inverters
- Designed for use with TP58 Master batteries (V2 & V3)
- Not compatible with BMS Parallel Box G2
Frequently Asked Questions
What is the SolaX Triple Power 5.8kWh SLAVE Battery (V3)?
Can this battery be used on its own?
Is the V3 battery compatible with older V2 systems?
Does it work with the SolaX BMS Parallel Box?
What warranty is included?
Product Code: HV11550(H) V3
Learn More: SolaX Triple Power 5.8kWh V3
Downloads
Datasheet – SolaX Triple Power 5.8kWh V3
User Manual – SolaX Triple Power 5.8kWh V3
Video
Order the SolaX Triple Power 5.8kWh SLAVE Battery (V3) today from The Eco Supermarket for fast UK delivery, expert technical support and full manufacturer warranty.


