SolaX Triple Power HV 5.8kWh Heated LFP Extension Battery SLAVE V3
SolaX Triple Power HV 5.8kWh Heated LFP Extension Battery SLAVE V3
SolaX Triple Power HV 5.8kWh Heated LFP Extension Battery SLAVE V3
SolaX Triple Power HV T-BAT H 5.8 V3 — 5.8 kWh a module at 95 % usable, heated to −30 °C, IP66, one to six modules a stack.
A battery pays for itself by moving energy in time: solar generated at midday and electricity bought on an overnight rate, both spent in the evening. What decides whether it pays is the usable capacity, the charge rate and the cycle life.
About the SolaX Triple Power HV T-BAT H 5.8 V3
The T-BAT H 5.8 V3 is 5.8 kWh a module with 5.5 kWh usable at a 95 % depth of discharge and over 6,000 cycles. One master plus up to five slaves makes 34.6 kWh at 691.2 V.
The heating function is what distinguishes it. With it on, the battery charges from −30 °C rather than stopping at zero — the difference between taking an overnight charge on a frosty morning and not.
IP66 for wall or floor mounting, indoors or out, cooled naturally, and rated for 4 to 100 % condensing humidity.
What each stack size gives you
One master plus up to five slaves:
Which inverter will run this battery?
This is a SolaX Triple Power HV stack: heated LFP modules in series, one master plus slaves.
Heated LFP modules, one master plus slaves. The window and the maximum current differ between the three X3 platforms, so read the figure in this model's own specification above.
Hybrid inverter platforms in our range that take this architecture:
Inverters we stock that will run it:
Stack rules, cabling and what else the job needs
The details that decide whether this battery suits the system:
- One master (the BMS and pack) plus up to five slave modules. Nominal voltage runs 115.2 V at one module to 691.2 V at six, with operating windows of 100 – 130 V and 600 – 750 V.
- 2.9 kW rated and 4 kW maximum charge or discharge a module. 25 A recommended and 35 A maximum current; the current also depends on how many batteries are in parallel, and on temperature and state of charge.
- Size the stack against the inverter, not the brand. The X1-Hybrid G4 wants 80 – 480 V, the X3-Hybrid G4 180 – 650 V, and the X3-Hybrid Pro and X3-Ultra 120 – 800 V.
- 474 × 715 × 150 mm a module. The master is 61.5 kg and a slave 59.5 kg, both ±1 kg.
- Below 0 °C with the heater off the battery can discharge but not charge. Discharge current is reduced between −20 and +10 °C and between 45 and 55 °C; charge current is reduced between 0 and 25 °C and between 45 and 55 °C.
- Cables are ordered separately: battery-to-inverter positive and negative, battery-to-battery positive and negative, and the communication cable.
- CAN 2.0 and RS485. IP66, wall or floor mounting, outdoor or indoor.
Where this battery earns its place
The Triple Power HV T-BAT H 5.8 V3 is specified most often for these jobs.
Things worth knowing about this listing
- This is an extension module. It needs a T-BAT H 5.8 master in the same stack, which carries the BMS.
- Size the stack against the inverter, not the brand. The X1-Hybrid G4 takes 80 – 480 V, the X3-Hybrid G4 180 – 650 V, and the X3-Hybrid Pro and X3-Ultra 120 – 800 V. A stack built for one will not commission on another.
- Battery cables are separate parts: battery-to-inverter positive and negative, battery-to-battery positive and negative, and the communication cable.
SolaX T-BAT H 5.8 V3 slave technical data
Ordered with this battery more often than anything else
A battery is one part of a storage system. These are the parts our customers add most often:
Questions we get asked about this inverter
Do I need the master as well as slaves?
Yes. The master carries the BMS; slaves are extension modules and will not work without one.
How big can the stack get?
One master plus five slaves — 34.6 kWh at 691.2 V. Whether your inverter will take all six depends on its battery window.
Will it work with my SolaX inverter?
It depends which one. The X3-Hybrid G4 wants 180 – 650 V, the X3-Hybrid Pro and X3-Ultra 120 – 800 V, and the single-phase X1-Hybrid G4 is a different battery altogether at 80 – 480 V. Send us the part number.
What does the heating function actually do?
It lets the battery charge down to −30 °C. Without it, charging stops at 0 °C, which is exactly when an overnight tariff is cheapest.
How much of the 5.8 kWh can I use?
5.5 kWh, at the 95 % depth of discharge SolaX rate it to.
Documents, advice and trade pricing
Every datasheet, certificate, installation manual and warranty document we hold for this product is in the Documents tab below. See the rest of our battery range, our hybrid inverters and our solar panels, or email sales@clearraysolar.com if you would like us to check a battery and inverter pairing before you order.
Build your complete solar system
Everything you need in one place.
- Inverters
- Batteries
- Mounting Systems
- Cabling & Accessories
- Protection Devices
Delivery times vary by region:
- UK — 1-2 business days
- Highlands & Islands — 1-2 business days
Returns accepted within 14 days of delivery for unused items in original packaging.
