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Home battery · SolaX Power · CEC approved February 2023

SolaX Power T-BAT H 17.3 V2

A 15.5 kWh home battery.

Installed in Perth, after rebates: ~$9,920; Typical estimate — your own quote will vary
WA Battery Scheme rebate: Depends on your inverter; The scheme needs a Synergy-approved inverter — we don't know yours
Usable capacity: 15.5kWh; Between the smaller home and medium home bands

Datasheet (PDF)See the whole Triple Power T-BAT H series

What we can tell you

Read from the figures on this page. No review written yet.

15.5 kWh sits between the smaller home (10–15 kWh) and medium home (20–30 kWh) bands.
It is CEC-approved, which is a condition of both the federal STC discount and the WA Battery Scheme.
We can't score it: a value score needs a price and full specs, and without them any number would be guesswork.

Key specs, in plain terms

The numbers that matter for a home. The full datasheet is below.

Usable capacity How much energy it stores for you to use: 15.5kWh
Round-trip efficiency How much of the energy you store comes back out: 92%
Depth of discharge How much of the battery you can actually use: 90%
Warranty 70% of capacity guaranteed at the end of it: 10yr
Battery chemistry Lithium iron phosphate — the long-cycle-life type: LFP
Size and weight 1347 × 510 × 365 mm — roughly a large suitcase on the wall: —

Full datasheet

Every figure on file for the SolaX Power Triple Power T-BAT H, by section.

Full datasheet, by section
Specification	Value
Cell & chemistry
Chemistry	LFP
Capacity & power
Nominal capacity	5.1 kWh
Usable capacity	15.5 kWh
Lifespan & degradation
Cycle life	6000 cycles
Capacity retained at year 10	70%
Warranted throughput	15.9 MWh
Physical
Dimensions (H×W×D)	1347 × 510 × 365 mm
IP rating	IP65

Parsed from the manufacturer datasheet, install manual, and warranty document. Confirm against the linked PDFs before relying on a value for a quote or installation.

Documents

Warranty and support

Warranty terms and Australian support structure.

SolaX products are covered for up to 10 years, with exclusions for unauthorized servicing and certain weather-related damages. Claims can be made by contacting your installer or SolaX directly.

Duration

years

Throughput

15.9

MWh

Max Temp

45°

celsius

Max Backup

Level 0

No Backup

Australian support structure

Not verified

We have not verified this brand's Australian support structure. Confirm warranty arrangements with the manufacturer or your installer.

Perth heat

Rated to 45°C. Give it a shaded or indoor spot through Perth summers.

Key warranty terms

•Depth of Discharge: 90% usable capacity
•Round-trip Efficiency: 92% rated
•Annual Degradation: ~2.5% per year expected
•Installation: Must be installed by SAA-accredited installer
•Operating Conditions: -10°C to 45°C

✓ TransferableFull replacement≥70% capacity at year 10

Warranty Document Datasheet Compare Warranties

WA Battery Scheme eligibility

Conditional

Synergy SSL inverter pairing, VPP participation and state-rebate qualification for this battery. Rebate and STC amounts are shown in the pricing panel.

This battery is AC-coupled. To get the WA rebate, the interest-free loan, VPP payments or DEBS export credits, it needs a gateway device from Synergy's approved list (for example SMA or Redback), or an inverter and battery from the same brand (Sungrow or Fronius). Without one, exports are capped at 1.5kW.

Some third-party gateways struggle to pass compliance testing, and adding anything to an AC-coupled system later means the whole system has to be re-checked. For many homes, switching to a hybrid (DC-coupled) inverter is the simpler path. AC vs DC coupling

CSIP-AUS compliant
Inverter must be CSIP-AUS compliant under the current WA framework.
Synergy SSL approved inverter
Needs pairing with a Synergy SSL approved inverter.
VPP activation ready
VPP activation requires a Synergy SSL approved inverter.
WA Battery Scheme rebate
Requires Battery Rewards participation under the current WA framework.
Synergy Battery Rewards
Requires a CSIP-AUS compliant system and reliable internet.
Interest-free loan
Not eligible for interest-free financing.

Under current WA rules, new rebate applications require VPP enrolment and CSIP-AUS compliance. How the scheme works · Estimate VPP earnings

About SolaX

View Full Profile →

Years in AU Market9+ years

Local SupportNot verified

CEC-Listed Products39 models

9yr AU

CEC-approved products since 2017

9 years in the Australian market

Fault & error codes — SolaX Power Triple Power T-BAT H

Extracted from the installation manual

23 documented

Showing 23 of 23. The official install manual is the authoritative source — always confirm before acting.

BMS_CapMismatch_FaultcriticalCall your installer
Manual (PDF)
The capacity of battery packs are different
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_CellImbalancecriticalCall your installer
Manual (PDF)
The capacities of cells are different
Likely cause
Contact your distributor or SolaX directly for servicing.
What to do
Contact support.
BMS_ChargeOCPcriticalCall your installer
Manual (PDF)
Battery charge over current protection
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_CurrSensor_FaultcriticalCall your installer
Manual (PDF)
Battery current sensor fault
Likely cause
Contact your distributor or SolaX directly for servicing.
What to do
Contact support immediately.
BMS_DishargeOCPcriticalCall your installer
Manual (PDF)
Battery discharge over current protection
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_Hardware_ProtectcriticalCall your installer
Manual (PDF)
Battery hardware under protection
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_Insulation_FaultcriticalCall your installer
Manual (PDF)
Battery insulation fault
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_LowerVoltagecriticalCall your installer
Manual (PDF)
Battery under voltage
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_Manu_Mismatch_FaultcriticalCall your installer
Manual (PDF)
The cell manufacture is different
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_MasterSw&SlaveSwMismatch_FaultcriticalCall your installer
Manual (PDF)
The software between Master and Slave are different
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_OverVoltagecriticalCall your installer
Manual (PDF)
Battery over voltage
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_Relay_FaultcriticalCall your installer
Manual (PDF)
Battery relay fault
Likely cause
1. Make sure the power cable is correctly and well connected to the power connector (XPLUG) of the BMS; 2. If the first step still does not work, contact your distributor or company directly for servicing.
What to do
Check connections and contact support if issue persists.
BMS_SelfChk_FaultcriticalCall your installer
Manual (PDF)
BMS selfcheck fault
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_SlaveSw&HwMismatch_FaultcriticalCall your installer
Manual (PDF)
The hardware is different
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_SlaveSwVer_Mismatch_FaultcriticalCall your installer
Manual (PDF)
The software between slaves are different
Likely cause
Contact your distributor or company directly for servicing.
What to do
Contact support immediately.
BMS_TempSensor_FaultcriticalCall your installer
Manual (PDF)
Battery temperature sensor fault
Likely cause
Contact your distributor or SolaX directly for servicing.
What to do
Contact support immediately.
BMS_VoltSensor_FaultcriticalCall your installer
Manual (PDF)
Battery voltage sensor fault
Likely cause
Contact your distributor or SolaX directly for servicing.
What to do
Contact support immediately.
BMS_CellTempDiff_Faultwarning
Manual (PDF)
The temperature between cells are different
Likely cause
Stop charging or discharging for a while.
What to do
Wait for conditions to stabilize.
BMS_ChgReqNoAck_Faultwarning
Manual (PDF)
No action for charging request
Likely cause
Check the information from inverter.
What to do
Check inverter status.
BMS_External_Errwarning
Manual (PDF)
The communication between BMS and inverter is interrupted
Likely cause
Check if the communication cable between BMS and inverter is correctly and well connected.
What to do
Check connections and ensure cables are intact.
BMS_Internal_Errwarning
Manual (PDF)
1. DIP switch at the wrong position; 2. The communication between battery packs is interrupted
Likely cause
Move the DIP switch to the correct position; Check if the communication cable between battery packs is correctly and well connected.
What to do
Adjust DIP switch and check cable connections.
BMS_TemHighwarning
Manual (PDF)
Battery over temperature
Likely cause
Wait till the temperature of cells go back to the normal state.
What to do
Allow battery to cool down.
BMS_TemLowwarning
Manual (PDF)
Battery under temperature
Likely cause
Wait till the temperature of cells go back to the normal state.
What to do
Allow battery to return to normal temperature.

What it costs in Perth

$13,950

Typical installed price, before rebates

WA Battery Scheme: Depends on your inverter
Federal STCs: −$4,030
You’d pay about: $9,920

The WA Battery Scheme (up to $1,300) needs a Synergy-approved inverter and VPP enrolment. We don't know which inverter you'd pair this with, so it isn't deducted above — ask your installer. STCs assume about $39.9 a certificate. Estimates only; your quote will vary.

Explore your options

Which size band is your home?

Usable capacity, for one battery system

Smaller home: 10–15 kWh
Medium home: 20–30 kWh
Big home: 30–40 kWh
Very big home: 40+ kWh

This battery sits between the smaller home and medium home bands. The WA rebate caps at 10 kWh, but that is a rebate limit, not a sizing guide.

Does waiting change the rebate?

Estimated federal rebate (STCs) for this 15.5 kWh battery

How it compares

The SolaX Power T-BAT H 17.3 V2 against the closest-sized batteries from other brands.

Specification	SolaX Power T-BAT H 17.3 V2SolaX Power	FoxESS ECS2900-H6FoxESS	Duracell DEB3-17.3PDuracell

Usable capacity?	15.5 kWh	15.552 kWh	15.57 kWhbest value
Continuous power?	Not verified	Not verified	Not verified
Peak power?	Not verified	Not verified	Not verified

Round-trip efficiency?	92%	92%	92%
Warranty	10 years	Not verified	Not verified
Chemistry	LFP	LFP	LFP

Specs from the CEC register and datasheet enrichment. Indicative — confirm exact figures with your installer.

More from SolaX

Other CEC-approved products from SolaX available in Australia.

SolaX Inverters

X1-1.5-S-N(L) (AS4777-2 2020)

1.5 kW · 1φ

X1-2.0-S-N(L) (AS4777-2 2020)

2 kW · 1φ

X1-2.5K-S-N(L) (AS4777-2 2020)

2.5 kW · 1φ

X1-3.0K-S-N(L) (AS4777-2 2020)

3 kW · 1φ

X1-3.3K-S-N(L) (AS4777-2 2020)

3.3 kW · 1φ

X1-3.6K-S-N(L) (AS4777-2 2020)

3.68 kW · 1φ

View all SolaX inverters

View full SolaX manufacturer profile

Want to take the next step?

Get a quote from an installer from our network that covers your area. You choose whether to act on it. No obligation.

This model is one entry in the desk's index of solar batteries for Perth — every CEC-approved battery on one comparable dataset.

Product Information Disclaimer:

Product specifications, pricing, and availability are subject to change without notice. We make no warranties regarding product performance, longevity, or suitability for your specific needs.

Always verify specifications with the manufacturer and installer before purchase. Warranty terms are set by manufacturers and may have conditions not disclosed here. Battery performance degrades over time.