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Home battery · GoodWe · Lynx D G2 series · CEC approved August 2025

GoodWe GW5.1-BAT-D-G20

A 5.01 kWh home battery with backup power.

Installed in Perth, after rebates: ~$3,152Estimate: your own quote will vary
WA Battery Scheme rebate: Depends on your inverterThe scheme needs a Synergy-approved inverter; we don't know yours
Usable capacity: 5.01kWhBelow the smaller-home band
Warranty: 10yrs

GW5.1-BAT-D-G20: the short answer

In the Lynx D G2 seriesOne of 4 sizes, from 5 to 8.85 kWh: 5.01kWhOne of 4 sizes, from 5 to 8.85 kWh
WA Battery SchemeThe scheme needs a Synergy-approved inverter; we don't know yours: Check eligibilityThe scheme needs a Synergy-approved inverter; we don't know yours
Continuous powerRuns most of a home, but not everything at full tilt: 5kWRuns most of a home, but not everything at full tilt

Other sizes in the Lynx D G2 series

What we can tell you

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

5.01 kWh is below the smaller-home band: this is one module of a larger stack.
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: 5.01kWh; How much energy it stores for you to use
Continuous power: 5kW; How much it can run at once: most of a home, but not everything at full tilt
Round-trip efficiency: 98%; How much of the energy you store comes back out
Depth of discharge: 99%; How much of the battery you can actually use
Warranty: 10yr; 70% of capacity guaranteed at the end of it
Battery chemistry: LFP; Lithium iron phosphate, the long-cycle-life type

Warranty and support

GoodWe offers a 10-year warranty on battery systems covering defects, with exclusions for improper installation. Claims can be made through local distributors or installers.

Product: 10 years; not transferable; full replacement
At year 10: At least 70% of capacity
Throughput: 12.42 MWh
Installation: Must be installed by an SAA-accredited installer
Support: Australian officeGoodWe Australia; 12 years in the Australian market. Direct manufacturer warranty. Australian consumer law applies.
Perth heat: Rated to 55°C, which covers Perth's hottest days.

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

Full datasheet

Every figure on file for the GoodWe Lynx D G2, by section.

Cell & chemistry

Chemistry: LFP
Cell type: LiFePO4

Capacity & power

Nominal capacity: 5.12 kWh
Usable capacity: 5.01 kWh
Continuous power: 5 kW
Peak power: 7.5 kW
Depth of discharge: 98.8%
Round-trip efficiency: 98%
Nominal voltage: 350 V

Lifespan & degradation

Cycle life: 8000 cycles
Capacity retained at year 10: 70%
Warranted throughput: 12.42 MWh

Modularity & stacking

Modular / stackable: Yes
Maximum stack: 12 kWh

Backup & grid services

Backup capable: Yes
VPP ready: Yes

Physical

Dimensions (H×W×D): 326 × 800 × 270 mm
Weight: 57.5 kg
IP rating: IP66

Operating environment

Operating temperature: -18°C to 55°C

Installation requirements

Top clearance: 0 mm
Side clearance: 0 mm
Front clearance: 0 mm
AC breaker: 50 A
Cable gauge: 6 mm²
Earthing method: TN-S
DNSP pre-approval: No

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

About GoodWe

Years in the Australian market: 12+ (CEC-approved products since 2014)
Local support: Not verified
CEC-listed products: 30 models

View full profile →

What it costs in Perth

$4,509

Typical installed price, before rebates

WA Battery Scheme: Depends on your inverter
Federal STCs: −$1,357
You’d pay about: $3,152

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 to 15 kWh
Medium home: 20 to 30 kWh
Big home: 30 to 40 kWh
Very big home: 40+ kWh

This battery is below the smaller-home band. 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 5.01 kWh battery

How it compares

The GoodWe GW5.1-BAT-D-G20 against the closest-sized batteries from other brands.

Specification	GoodWe GW5.1-BAT-D-G20GoodWe	KSTAR BP48100PF1A-G2KSTAR	AKAI Energy AKE-5KW-LB3AKAI Energy

Usable capacity?	5.01 kWh	5.01 kWh	5.018 kWhbest value
Continuous power?	5 kW	Not verified	Not verified
Peak power?	7.5 kW	Not verified	Not verified

Round-trip efficiency?	98%best value	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 GoodWe

Other CEC-approved products from GoodWe available in Australia.

GoodWe Inverters

GEH10-1U-10

10 kW

GEH15-3U-10

15 kW

GEH20-3U-10

20 kW

GEH25-3U-10

25 kW

GEH29.9-3U-10

29.9 kW

GEH5.0-1U-10

5 kW

View all GoodWe inverters

GoodWe Solar Panels

BMM-T3/108A(505W)

505W

BMM-T3/108A(510W)

510W

BMM-T3/108A(515W)

515W

BMM-T3/120A(565W)

565W

BMM-T3/120A(570W)

570W

BMM-T3/120A(575W)

575W

View all GoodWe panels

View full GoodWe 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.

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