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Home battery · Hgness · HG-C&I-HV series · CEC approved February 2026

Hgness HG-C&I-HV4-20

A 20.48 kWh home battery. Medium home size, the 20 to 30 kWh band.

Installed in Perth, after rebates: ~$13,604Estimate: 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: 20.48kWh
Warranty: 10yrs

HG-C&I-HV4-20: the short answer

In the HG-C&I-HV seriesOne of 7 sizes, from 15.36 to 46.08 kWh: 20.48kWhOne of 7 sizes, from 15.36 to 46.08 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 enough for a whole home, air conditioning included: 10.24kWRuns enough for a whole home, air conditioning included

Other sizes in the HG-C&I-HV series

What we can tell you

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

20.48 kWh sits in the medium home band (20 to 30 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: 20.48kWh; How much energy it stores for you to use
Continuous power: 10.24kW; How much it can run at once: enough for a whole home, air conditioning included
Round-trip efficiency: 100%; How much of the energy you store comes back out
Depth of discharge: 100%; You can use the whole battery, not just part of it
Warranty: 10yr; 80% of capacity guaranteed at the end of it
Battery chemistry: LFP; Lithium iron phosphate, the long-cycle-life type

Warranty and support

This warranty covers your solar battery for 10 years against defects. The warranty is voided by non-accredited installations or modifications. Claims can be made through the warranty claim process.

Product: 10 years; not transferable; full replacement
At year 10: At least 80% of capacity
Throughput: Not on record
Installation: Must be installed by an SAA-accredited installer
Support: Not verifiedWe have not verified this brand's Australian support structure. Confirm warranty arrangements with the manufacturer or your installer.
Perth heat: Rated to 58°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 Hgness HG-C&I-HV, by section.

Cell & chemistry

Chemistry: LFP
Cell type: HG-C&I-HVP: 51.2V5.12kWh

Capacity & power

Nominal capacity: 20.48 kWh
Usable capacity: 20.48 kWh
Continuous power: 10.24 kW
Peak power: 10.24 kW
Depth of discharge: 100%
Round-trip efficiency: 100%
Nominal voltage: 204.8 V

Lifespan & degradation

Cycle life: 6000 cycles
Capacity retained at year 10: 80%
Warranted throughput: 0 MWh

Modularity & stacking

Modular / stackable: Yes
Maximum stack: 20.48 kWh

Backup & grid services

Backup capable: No
VPP ready: No

Physical

Dimensions (H×W×D): 754 × 600 × 400 mm
Weight: 201.5 kg
IP rating: IP66

Operating environment

Operating temperature: -20°C to 58°C

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 Hgness

Years in the Australian market: Listed on the CEC register
Local support: Not verified
CEC-listed products: 10 models

View full profile →

What it costs in Perth

$18,432

Typical installed price, before rebates

WA Battery Scheme: Depends on your inverter
Federal STCs: −$4,828
You’d pay about: $13,604

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 one unit in the medium 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 20.48 kWh battery

How it compares

The Hgness HG-C&I-HV4-20 against the closest-sized batteries from other brands.

Specification	Hgness HG-C&I-HV4-20Hgness	CALB CJ160F20AACALB	CALB CJ160F20ABCALB

Usable capacity?	20.48 kWh	20.48 kWh	20.48 kWh
Continuous power?	10.24 kW	Not verified	Not verified
Peak power?	10.24 kW	Not verified	Not verified

Round-trip efficiency?	100%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.

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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