Sunbridge brand guide

SolaX Power

SolaX home battery,prices and installation.

Sunbridge reviews SolaX Power's high-voltage battery range, product positioning and household suitability to help Australian homeowners understand where it may fit within a broader home energy strategy.

Reviewed for Australian homes
Explore SolaX products
Solar BatteryBrand / 05 of 15

At a glance

  • Modular high-voltage storage
  • Inverter-led ecosystem
  • Safety and monitoring
Solar invertersBattery storageHigh-voltage systemsEnergy monitoring

About SolaX Power

What is a SolaX home battery?

The SolaX TSYS-HS51 is a high-voltage home battery built from stackable 5.1 kWh lithium iron phosphate (LFP) modules, model TB-HS51. A battery management unit (TBMS-S51-8) sits on top of the stack and a base sits underneath. SolaX sells it from 2 to 13 modules, which is 10.2 to 66.5 kWh nominal.

Sunbridge quotes it as a complete SolaX system, not a battery on its own. Each package pairs 3 to 10 modules with a SolaX hybrid inverter. Single-phase homes get the X1-Hybrid-5.0-D or the X1-VAST-10K. Three-phase homes get the X3-Hybrid-10.0-D, the X3-Hybrid-15.0-D or the X3-ULT-15KP. The inverter connects your solar panels, the battery, the house and the grid.

The modules are wired in series, so voltage rises as the stack grows. Three modules run at 128 to 174 V and ten modules at 424 to 578 V. SolaX Power Network Technology (Zhejiang) Co., Ltd. makes the system in China, and SolaX Power AUS Pty Ltd in Dandenong South, Victoria, is the Australian importer.

  • Modular high-voltage storage

    Stackable 5.1 kWh LFP modules let households size storage from around 10 kWh to 66 kWh and expand later.

  • Inverter-led ecosystem

    A long heritage in hybrid inverters means the battery is designed to work as part of a coordinated solar-and-storage system.

  • Safety and monitoring

    LFP chemistry, an IP66 enclosure, aerosol fire suppression and remote monitoring support safe, serviceable operation.

Solar invertersBattery storageHigh-voltage systemsEnergy monitoring

In Sunbridge’s eyes

SolaX review: an installer’s view

SolaX Power is one of the more established names on this list , a Chinese manufacturer founded in 2012 that builds grid-tied and hybrid inverters. Its Triple Power high-voltage battery range extends that inverter heritage into storage: a stackable LFP tower that scales from 10.2 kWh to 66.5 kWh, with usable energy rated at 90% depth of discharge (up to 100% settable, depending on the inverter) and an aerosol fire-suppression module built in.

  • Genuinely modular , stack 5.1 kWh LFP modules to 51.2 kWh in one tower, up to 66.5 kWh across two.
  • Usable energy rated at 90% depth of discharge, and more than 6,000 cycles at 90% DoD in SolaX’s lab testing.
  • Layered safety , LFP cells, IP66 enclosure, a built-in aerosol fire-suppression module and a UL9540A listing.
  • One maker for battery and inverter, with a 10-year Australian warranty on the battery and each inverter we pair with it.

Available products

SolaX batteries we supply and install

Explore products available through Sunbridge, with guidance based on your household energy use, existing solar system, backup expectations and future requirements.

SolaX Power · Solar Battery

SolaX Triple Power TSYS-HS51

SolaX Triple Power TSYS-HS51, high-voltage LFP battery system

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SolaX Triple Power TSYS-HS51 product image
  • 10.2–66.5 kWhModular capacity
  • 90% DoDUsable rating · LFP
  • > 6,000Cycle life (90% DoD)

SolaX Power SolaX Triple Power TSYS-HS51 · with Sunbridge

The right fit for your home , and fully backed

Why the SolaX Triple Power TSYS-HS51 fits your home

Homes wanting room to grow

A stackable high-voltage tower that scales from 10.2 kWh to 66.5 kWh in 5.1 kWh steps. Our packages use 3 to 10 modules with a SolaX hybrid inverter.

Usable energy, stated plainly

SolaX’s Australian datasheet lists usable energy at 90% depth of discharge, for example 13.7 kWh from a 15.3 kWh stack. Up to 100% is settable, depending on the inverter and setup.

Safety-focused installs

LFP cells, an IP66 enclosure and a built-in aerosol fire-suppression module. SolaX’s datasheet lists IEC 62619 and UL9540A among its certifications.

High-voltage efficiency

A high-voltage architecture keeps current low for the same power, supporting strong charge and discharge with lower losses.

Designed, installed & backed by Sunbridge

10 yearsSolaX Australian warranty
70%Energy retention at 10 years
ACLAustralian Consumer Law protected
Warranty & compliance
  • SolaX’s Australian warranty for the TSYS-HS51 runs 10 years from installation, or 129 months from manufacture if that comes first. It covers at least 70% energy retention at 10 years, with an operating limit of 6,000 cycles for daily self-consumption and backup use.
  • Adding modules is supported within 1 year of installation; after that, SolaX must approve it in advance. SolaX Power AUS Pty Ltd, in Dandenong South, Victoria, is the local importer. Your guarantees under the Australian Consumer Law apply in addition, and Sunbridge registers the warranty on your behalf as part of the installation.
Rebate guidance
  • Battery incentives change over time and depend on the exact battery model, the installation and your household. The federal Cheaper Home Batteries Program requires the battery to be on the Clean Energy Council approved list, and listing alone does not make a household eligible.
  • Where an incentive applies, your Sunbridge quote shows it as a separate deduction, subject to eligibility at the time of installation. Your quote lists the exact battery model so you can check it against the approved list. See our battery rebate guidance for how the current programs work.

The detail

Full technical specifications

Battery

Chemistry
LFP (LiFePO₄)
Battery module
TB-HS51 · 5.1 kWh per module
Number of modules
2 – 13
Capacity range (nominal)
10.2 – 66.5 kWh
Usable energy (90% DoD)
9.1 – 59.8 kWh (e.g. 13.7 kWh from 15.3 kWh)
Depth of discharge (DoD)
90% rated; up to 100% settable, depending on inverter
Cycle life
> 6,000 cycles (90% DoD, 25 °C, 0.5C, to 70% EOL)
Ingress protection
IP66

Power & voltage

System type
High-voltage stackable battery tower
Nominal voltage
102.4 – 665.6 V d.c.
Operating voltage range
85 – 750 V d.c.
Rated charge / discharge power
6.1 – 39.9 kW
Max. charge / discharge power
7.2 – 46.6 kW
Recommended charge / discharge current
60 A
Max. charge / discharge current
70 A

Environment & installation

Charge temperature
−30 °C to +53 °C with heating; 0 °C to +53 °C without
Discharge temperature
−30 °C to +53 °C with heating; −20 °C to +53 °C without
Storage temperature
−20 °C to +30 °C (12 months); +30 °C to +50 °C (6 months)
Relative humidity
4 – 100% RH (condensing)
Max. operating altitude
3,000 m
Communication interfaces
CAN2.0 / RS485
Fire safety
Integrated aerosol fire-suppression module

Modules & compliance

Module dimensions (W × H × D)
600 × 168 × 376 mm
Module weight
47 kg (47.1 kg with optimizer)
Tower expansion
Up to 10 modules per tower; 2 towers with expansion cables; 3 towers with TCBox-70 (coming soon)
Certifications
CE, RCM, IEC62619, IEC62620, IEC62477-1, IEC60730 Annex H, IEC62040, VDE-AR-E2510, IEC60529, UN38.3, UL9540A
Manufactured in
China

Specifications are from SolaX’s TSYS-HS51 (Triple Power) datasheet for Australia (V1.92, September 2026), which lists UL9540A among its certifications, and SolaX’s Australian warranty terms. Exact figures depend on the number of modules, towers and the inverter; Sunbridge confirms the configuration for your home.

  • System assessment
  • Product guidance
  • Installation coordination
  • After-sales support

Installed prices

How much does a SolaX Power battery cost in Australia?

SolaX home batteries supplied and installed by Sunbridge Energy: 18 packages from 15.3 kWh (from $7,003.50) to 51 kWh (from $17,752.70), including GST, after the federal battery rebate. Prices as at 16 November 2026.

Installed price for a standard installation, including GST, after the federal battery rebate. The site inspection confirms your home. Compare every brand's prices

What size SolaX Power battery do I need?

Start with the energy your home uses between sunset and sunrise. Your retailer bill, smart meter data or solar app shows it in kWh. Choose a battery whose usable capacity covers that, plus any growth you expect from an EV or electric hot water. The site inspection confirms the size before you commit.

Our package sizes are simple module counts at 5.1 kWh each: 15.3 kWh is 3 modules, 20.4 kWh is 4, 25.5 kWh is 5, 30.6 kWh is 6, 40.8 kWh is 8 and 51 kWh is 10. SolaX's model names round a little higher (T-HS25.6, T-HS30.7, T-HS40.9 and T-HS51.2) because each module is 5.12 kWh nominal. The usable figure in our quotes is 90% of the package size, for example 13.77 kWh from 15.3 kWh. The single-phase X1 inverters we quote accept 80 to 480 V from the battery. Eight modules run at 340 to 463 V, so 40.8 kWh is our largest single-phase package, and 51 kWh is three-phase only, on the X3-ULT-15KP. The three-phase X3 inverters accept 120 to 800 V. SolaX's Australian datasheet and manual show up to 10 modules in one tower, about 1,965 mm tall, with two towers recommended from 11 modules. One system runs up to 13 modules (66.5 kWh) across two towers. SolaX lists a TCBox-70 accessory for up to three towers, marked coming soon.

BatteryUsableSupplyInstalled fromQuote
15.3 kWh13.77 kWhSingle-phase or Three-phase$7,003.50View the quote
20.4 kWh18.36 kWhSingle-phase or Three-phase$8,019.80View the quote
25.5 kWh22.95 kWhSingle-phase or Three-phase$9,036.10View the quote
30.6 kWh27.54 kWhSingle-phase or Three-phase$10,699.20View the quote
40.8 kWh36.72 kWhSingle-phase or Three-phase$13,459.10View the quote
51 kWh45.9 kWhThree-phase$17,752.70View the quote

Can I add a SolaX Power battery to my existing solar?

Often, yes. Every SolaX package we quote includes a SolaX hybrid inverter, so the real question is what happens to your current solar inverter. SolaX describes two paths: replace an older solar-only inverter with the hybrid, or keep it and couple it on the AC side. Which one suits you depends on your inverter's age and model, your panels, your switchboard and your supply phase, and we confirm it at the inspection.

  • Replace: SolaX suggests swapping a solar-only inverter that is around 6 to 7 years old or more for a hybrid. Your existing panels then connect to the hybrid's own solar inputs.
  • Keep: SolaX documents an AC-coupled setup for its X1-Hybrid G4 and X3-Hybrid G4, where the existing on-grid inverter stays in place and a second meter measures its output.
  • Panel limits: SolaX's maximum recommended solar array is 10 kWp on the X1-Hybrid-5.0-D, 20 kWp on the X1-VAST-10K and X3-Hybrid-10.0-D, and 30 kWp on the X3-Hybrid-15.0-D and X3-ULT-15KP.
  • Phase match: X1 models are single-phase and X3 models are three-phase, so the inverter has to suit your supply.
  • Old gear: if an old inverter or battery comes out, removal and disposal are listed as options on your quote. Switchboard work, if needed, appears as a separate line.

What does the SolaX Power price include, and what costs extra?

Every price above is the installed price for a standard installation, including GST, after the federal battery rebate. These are the choices and site work that change it for SolaX Power.

Included in every price

  • Supply of the listed equipment
  • Standard installation and commissioning
  • System testing and customer handover
  • Applicable rebate shown as an upfront deduction

Extras, if you choose them

  • Partial backup+$500
  • Full house backup+$800 (three phase only)
  • New concrete slab+$250
  • Garage installation+$500
  • Cable beyond 5 m$30 per metre
  • Remove old inverter+$300
  • Remove old battery+$600
  • Remove old inverter and battery+$900

Only if the inspection finds it is needed

  • Switchboard upgradeup to $1,500

Not included unless your quote says so: Switchboard replacement, asbestos work, trenching, cranes and structural work unless expressly included; Network or metering charges imposed after issue of this quote; Additional work identified during site verification.

SolaX Power compared with other batteries at the same size

Our lowest installed price for each SolaX Power size, next to the closest-sized package from the other brands we install. Same inclusions, same branches.

SolaX PowerAnker SOLIXESY SUNHOMEEcoFlowGoodWeSigenergySungrow
15.3 kWh · $7,003.50No close sizeNo close size15.3 kWh · $8,539.20No close sizeNo close size15 kWh · $9,267.74
20.4 kWh · $8,019.8020 kWh · $8,098.30No close size20.4 kWh · $9,211.6018 kWh · $7,566.5018 kWh · $8,067.6020 kWh · $10,205.24
25.5 kWh · $9,036.1025 kWh · $9,307.30No close size25.5 kWh · $10,451.6027 kWh · $9,432.6327 kWh · $9,929.6025 kWh · $11,105.74
30.6 kWh · $10,699.2030 kWh · $10,775.3030.72 kWh · $6,997.5330.6 kWh · $12,776.1033.28 kWh · $11,482.4327 kWh · $9,929.6030 kWh · $13,268.78
40.8 kWh · $13,459.10No close sizeNo close sizeNo close size45 kWh · $14,468.1345 kWh · $17,406.5040 kWh · $16,253.78
51 kWh · $17,752.70No close sizeNo close sizeNo close size54 kWh · $16,982.9354 kWh · $22,440.20No close size

SolaX TSYS-HS51 pros and cons

What we tell customers before they choose SolaX Power.

Pros

  • Sized in 5.1 kWh steps: the tower grows one module at a time, and our packages run from 3 modules (15.3 kWh) to 10 modules (51 kWh) on the same TB-HS51 module.
  • One brand, one warranty provider: battery and inverter are both SolaX. SolaX's Australian warranty lists 10 years for the TSYS-HS51 range and for each inverter model we pair with it.
  • Layered safety design: LFP cells, an IP66 enclosure and a built-in aerosol fire suppression module. SolaX's Australian datasheet lists IEC 62619 and UL9540A among its certifications.
  • On the approved lists: all 12 TSYS-HS51 configurations are on the Clean Energy Council approved batteries list until 31 December 2027. All five inverters we pair with it are on the approved inverter list.
  • Built for cold mornings: with its heating function on, SolaX rates the battery to charge from -30 to +53 °C. Without heating, charging starts at 0 °C.

Cons and things to check

  • Usable energy is below the headline size: SolaX's Australian datasheet lists usable energy at 90% depth of discharge, so a 15.3 kWh stack shows 13.7 kWh usable. The datasheet says up to 100% is settable, depending on the inverter and setup.
  • Heavy and tall: three modules weigh about 164 kg and stand 789 mm high. Ten modules weigh about 493 kg and stand 1,965 mm. It is floor-mounted, and the floor must carry at least four times the system weight. The wall behind it must be non-combustible and at least 150 mm thick, never timber.
  • The inverter caps power: a 15.3 kWh stack is rated at 9.2 kW, but the X1-Hybrid-5.0-D is rated at 4,999 W in Australia. A bigger stack stores more energy but does not lift the inverter's output limit.
  • Adding modules later has conditions: SolaX's warranty supports adding batteries within 1 year of installation. After that, SolaX must approve it in advance, and the new and existing batteries must be brought to the same level first.
  • Placement matters: SolaX recommends shade from direct sun, rain and snow for outdoor installs, as heat can affect performance. Its warranty conditions give operation in ambient temperatures below -10 °C or above 50 °C as an example of not following its instructions.

Sources: SolaX Australia, TSYS-HS51 product page, SolaX TSYS-HS51 datasheet (EN-AU, V1.92, Sep 2026), SolaX TSYS-HS51 user manual (V5.0, May 2026), SolaX warranty terms and conditions, Australia (V1.6, Sep 2026), SolaX X1-Hybrid G4 datasheet (EN-AU, V3.0), SolaX X1-VAST datasheet (EN-AU, V1.61), SolaX X3-Hybrid G4 datasheet (EN-AU, V3.9.1), SolaX X3-Ultra datasheet (AU-EN, V2.6), SolaX Australia blog, adding a battery to an existing solar system, SolaX knowledge base, External INV in AC coupling, SolaX, About SolaX, Clean Energy Council, approved batteries list, Clean Energy Council, approved inverters list, Clean Energy Regulator, solar batteries (updated 31 July 2026).

The SolaXCloud app

The SolaXCloud app: what you can see and control

SolaXCloud pairs real-time monitoring with AI forecasting , it reads weather, load and electricity prices a day ahead and schedules charging and discharging to get more from every kWh, with XCopilot on hand for questions.

AI forecasting & scheduling

Forecasts weather, load and pricing 24 hours ahead, then schedules energy to lift returns.

XCopilot assistant

A 24/7 in-app assistant that answers system questions and helps troubleshoot.

Real-time monitoring

A live view across solar, battery, EV charger and heat pump, with proactive alerts.

Sustainability tracking

CO₂ savings and tree-equivalent reporting from your own generation.

SolaXCloud home dashboard showing live solar, battery and grid power flow with daily earnings

Is SolaX right for your home?

Sunbridge considers your existing solar system, electricity usage, backup requirements, switchboard, installation conditions and future energy plans before recommending a product or configuration.

  • 01

    Homes with new or existing SolaX-compatible solar

    A matched inverter and battery can be designed to operate together as one coordinated system.

  • 02

    Households wanting scalable storage

    Modular 5.1 kWh steps let capacity grow with changing household energy use.

  • 03

    Larger or higher-power homes

    High-voltage configurations support substantial capacity and charge/discharge power.

  • 04

    Properties needing an outdoor, safety-focused install

    An IP66 enclosure and built-in aerosol fire suppression suit outdoor installation.

Sunbridge advisor insight

Final suitability depends on your existing solar system, inverter, switchboard, electricity usage, backup expectations and future energy plans.

FAQ

Frequently asked questions

Yes. SolaX was founded in 2012, and the battery is made in China by SolaX Power Network Technology (Zhejiang) Co., Ltd. SolaX's Australian warranty names SolaX Power AUS Pty Ltd, in Dandenong South, Victoria, as the local importer.

Guide · 9 min readHome Battery FAQ: capacity, backup, chemistry & warrantyEvery common question , how much capacity, whole-home backup, LFP safety, rebates and warranties , answered in one place.

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