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Home battery · GOODWE · CEC approved November 2025

GOODWE GW81.9-BAT-AC-G10

A 80 kWh home battery — very big home size, the 40+ kWh band.

Installed in Perth, after rebates: ~$65,057; 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: 80kWh; Very big home size — the 40+ kWh band

What we can tell you

Read from the figures on this page — no review written yet

80 kWh sits in the very big home band (40+ kWh).
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: 80kWh
Round-trip efficiency How much of the energy you store comes back out: 96%
Depth of discharge How much of the battery you can actually use: 70%
Warranty 70% of capacity guaranteed at the end of it: 10yr
Battery chemistry Lithium iron phosphate — the long-cycle-life type: LFP

Full datasheet

Every figure on file for the GOODWE BAT, by section.

Full datasheet, by section
Specification	Value
Cell & chemistry
Chemistry	LFP
Capacity & power
Nominal capacity	81.9 kWh
Usable capacity	80 kWh
Depth of discharge	70%
Round-trip efficiency	96%
Lifespan & degradation
Capacity retained at year 10	70%
Warranted throughput	3 MWh
Physical
IP rating	IP20
Installation requirements
Top clearance	90 mm
Side clearance	30 mm
Front clearance	30 mm
AC breaker	35 A
Cable gauge	10 mm²
Earthing method	PE cable
DNSP pre-approval	Yes
Estimated install time	8 hrs

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.

The warranty covers defects and performance of the battery system for 10 years. It excludes damage from improper installation and requires claims within two weeks of failure.

Duration

years

Throughput

MWh

Max Temp

45°

celsius

Max Backup

Level 0

No Backup

Australian support structure

Australian Office12 years in AU market

GoodWe Australia

Direct manufacturer warranty. Australian consumer law applies.

Perth climate suitability

Suitable with precautions

Rated to 45°C. Plan for a shaded or garage install through Perth summers.

Key warranty terms

•Depth of Discharge: 70% usable capacity
•Round-trip Efficiency: 96% rated
•Annual Degradation: ~2.5% per year expected
•Installation: Must be installed by SAA-accredited installer
•Operating Conditions: -10°C to 45°C

✗ Non-transferableFull replacement≥70% capacity at year 10

Warranty Document Datasheet Compare Warranties

WA Battery Scheme eligibility

Check eligibility

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

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 GOODWE

View Full Profile →

Years in AU Market12+ years

Local SupportNot verified

CEC-Listed Products30 models

12yr AU

CEC-approved products since 2014

12 years in the Australian market

Fault & error codes — GOODWE BAT

Extracted from the installation manual

19 documented

Showing 19 of 19. The official install manual is the authoritative source — always confirm before acting.

Air Switch FaultcriticalCall your installer
Manual (PDF)
The air switch is not functioning properly.
Likely cause
Switch failure or improper configuration.
What to do
Restart the battery. Contact the After Sale Service if the problem could not be solved.
Battery OvervoltagecriticalCall your installer
Manual (PDF)
Battery voltage is too high.
Likely cause
The battery is experiencing excessive charge.
What to do
Restart the battery. Contact the After Sale Service if the problem could not be solved.
High TemperaturecriticalCall your installer
Manual (PDF)
Battery temperature is too high.
Likely cause
Excessive heat exposure or malfunction.
What to do
Power off and wait for 2 hours. Contact the After Sale Service if the problem could not be solved.
Inconsistent Master and SlavecriticalCall your installer
Manual (PDF)
Master/slave configuration mismatch detected.
Likely cause
Assembly or connection issues.
What to do
Restart the battery. Contact the After Sale Service if the problem could not be solved.
Insulation FaultcriticalCall your installer
Manual (PDF)
Insulation safety failure detected.
Likely cause
Internal damage or deterioration.
What to do
Do not touch the battery. Contact the After Sale Service.
Internal Communication FaultcriticalCall your installer
Manual (PDF)
Communication issue detected within battery components.
Likely cause
Wiring or component failure.
What to do
Power off and check the communication cables. Restart the battery. Contact the After Sale Service if the problem could not be solved.
Overcurrent ChargingcriticalCall your installer
Manual (PDF)
Excessive current is being supplied to the battery during charging.
Likely cause
Charging system malfunction or incorrect settings.
What to do
Restart the battery. Contact the After Sale Service if the problem could not be solved.
Overcurrent DischargingcriticalCall your installer
Manual (PDF)
Excessive current is being drawn from the battery during discharging.
Likely cause
Load conditions exceed battery capacity.
What to do
Restart the battery. Contact the After Sale Service if the problem could not be solved.
Precharge FaultcriticalCall your installer
Manual (PDF)
Issue occurring before charging begins.
Likely cause
Possible malfunction in the precharge system.
What to do
Restart the battery. Contact the After Sale Service if the problem could not be solved.
Relay FaultcriticalCall your installer
Manual (PDF)
A relay within the system has failed.
Likely cause
Hardware malfunction.
What to do
Restart the battery. Contact the After Sale Service if the problem could not be solved.
Temp. Sensor FaultcriticalCall your installer
Manual (PDF)
Temperature sensor error detected.
Likely cause
Sensor malfunction.
What to do
Restart the battery. Contact the After Sale Service if the problem could not be solved.
Voltage Balance FaultcriticalCall your installer
Manual (PDF)
Discrepancy in voltage levels across battery cells.
Likely cause
Cell failure or charging issues.
What to do
Restart the battery. Contact the After Sale Service if the problem could not be solved.
Battery UndervoltagewarningCall your installer
Manual (PDF)
Battery voltage is too low.
Likely cause
The battery is under-discharged.
What to do
Long press the button for 5 seconds to start the battery under charging conditions. Contact the After Sale Service if the problem could not be solved.
Inconsistent Software VersionwarningCall your installer
Manual (PDF)
Software versions between components do not match.
Likely cause
Updates have not been applied uniformly across devices.
What to do
Contact the After Sale Service if the problem could not be solved.
Interlock FailurewarningCall your installer
Manual (PDF)
Communication or connection failure within the battery system.
Likely cause
Misconfiguration or wiring issues.
What to do
Contact the After Sale Service if the problem could not be solved.
Low TemperaturewarningCall your installer
Manual (PDF)
Battery temperature is too low.
Likely cause
Environmental conditions are too cold for proper operation.
What to do
Power off and wait for 2 hours. Contact the After Sale Service if the problem could not be solved.
OtherswarningCall your installer
Manual (PDF)
Generic error condition.
Likely cause
Unknown or unclassified error.
What to do
Contact the After Sale Service if the problem could not be solved.
SN FaultwarningCall your installer
Manual (PDF)
Serial number failure detected.
Likely cause
Configuration or component error.
What to do
Contact the After Sale Service.
Temperature Difference ExceptionwarningCall your installer
Manual (PDF)
Temperature discrepancy detected within the battery system.
Likely cause
Battery is not operating within its specified temperature range.
What to do
Power off and wait for 2 hours. Contact the After Sale Service if the problem could not be solved.

What it costs in Perth

$72,000

Typical installed price, before rebates

WA Battery Scheme: Depends on your inverter
Federal STCs: −$6,943
You’d pay about: $65,057

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 is one unit in the very big home band. The WA rebate caps at 10 kWh, but that is a rebate limit, not a sizing guide.

The federal rebate shrinks each year

STC value for this 80 kWh battery

Frequently asked questions

How it compares

The GOODWE GW81.9-BAT-AC-G10 against the closest-sized batteries from other brands.

Specification	GOODWE GW81.9-BAT-AC-G10GOODWE	ZYC Energy SIMPO HV Pro80.6ZYC Energy	KSTAR BC80DE2-AUKSTAR

Usable capacity?	80 kWh	80.6 kWh	80.64 kWhbest value
Continuous power?	Not verified	Not verified	Not verified
Peak power?	Not verified	Not verified	Not verified

Round-trip efficiency?	96%best value	92%	92%
Warranty	10 years	10 years	10 years
Chemistry	LFP	LFP	LFP

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

More from GOODWE

Other CEC-approved products from GOODWE available in Australia.

GOODWE Inverters

GEH10-1U-10 (AS4777-2 2020)

10 kW · 1φ

GEH15-3U-10 (AS4777-2 2020)

15 kW · 1φ

GEH20-3U-10 (AS4777-2 2020)

20 kW · 1φ

GEH25-3U-10 (AS4777-2 2020)

25 kW · 1φ

GEH29.9-3U-10 (AS4777-2 2020)

29.9 kW · 1φ

GEH5.0-1U-10 (AS4777-2 2020)

5 kW · 1φ

View all GOODWE inverters

GOODWE Solar Panels

BMM-T3/108A(505W) (IEC 61215-2021)

505W

BMM-T3/108A(510W) (IEC 61215-2021)

510W

BMM-T3/108A(515W) (IEC 61215-2021)

515W

BMM-T3/120A(565W) (IEC 61215-2021)

565W

BMM-T3/120A(570W) (IEC 61215-2021)

570W

BMM-T3/120A(575W) (IEC 61215-2021)

575W

View all GOODWE panels

View full GOODWE manufacturer profile

Want to take the next step?

Compare quotes from SAA-accredited local installers — you choose which to act on. 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.