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Home battery · Dyness · CEC approved July 2025

Dyness Cygni 8.0HS-M3

CEC listing: Cygni 8.0HS-M3 (AS4777-2 2020)

A 10.94 kWh home battery — smaller home size, the 10–15 kWh band.

Installed in Perth, after rebates: ~$3,847; 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: 10.94kWh; Smaller home size — the 10–15 kWh band

Datasheet (PDF)See the whole Cygni series

What we can tell you

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

10.94 kWh sits in the smaller home band (10–15 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: 10.94kWh
Round-trip efficiency How much of the energy you store comes back out: 98%
Depth of discharge How much of the battery you can actually use: 95%
Warranty How long the manufacturer stands behind it: 10yr
Battery chemistry Lithium iron phosphate — the long-cycle-life type: LFP

Full datasheet

Every figure on file for the Dyness Cygni, by section.

Full datasheet, by section
Specification	Value
Cell & chemistry
Chemistry	LFP
Capacity & power
Nominal capacity	11.52 kWh
Usable capacity	10.94 kWh
Depth of discharge	95%
Round-trip efficiency	97.5%
Lifespan & degradation
Cycle life	8000 cycles
Physical
IP rating	IP66
Installation requirements
Cable gauge	10 mm²

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 in materials and workmanship for the Cygni ESS system, including batteries and inverters, for a period of up to 10 years. Exclusions include damages from unauthorized modifications and non-compliance with the user manual.

Duration

years

Throughput

∞

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: 95% usable capacity
•Round-trip Efficiency: 98% 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

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 DYNESS

View Full Profile →

Years in AU Market7+ years

Local SupportNot verified

CEC-Listed Products55 models

7yr AU

CEC-approved products since 2019

7 years in the Australian market

Fault & error codes — Dyness Cygni

Extracted from the installation manual

12 documented

Showing 12 of 12. The official install manual is the authoritative source — always confirm before acting.

E1criticalCall your installer
Manual (PDF)
GFCI Fault (The ground leakage current is high)
Likely cause
Neutral & ground cables are not connected well on the AC side or just occasional failure.
What to do
Check using a multi-meter if there is a high voltage (normally should be lower than 10V) between the N&PE cable on the AC side.
E12criticalCall your installer
Manual (PDF)
DC Bus High (BUS voltage is over-high)
Likely cause
PV or battery voltage is too high.
What to do
Try to restart the product, and check if it still happens; if not, it means it is just an occasional situation.
E19criticalCall your installer
Manual (PDF)
ISO Fault (PV isolation protection)
Likely cause
Isolation failure could be caused by multi reasons like PV panels not grounded well, DC cable is broken, PV panels are aged or surrounding humidity is comparatively heavy.
What to do
Use a multimeter to check if the resistance between the earth & product frame is about zero. If not, please make the connection earth & product frame well.
E10warning
Manual (PDF)
Grid Loss (Not available of public grid power)
Likely cause
Product does not detect the connection of grid or the grid voltage fault.
What to do
Check connections and grid switch to ensure grid power is available.
E14warning
Manual (PDF)
Over Temperature (Temperature inside of the product is too high)
Likely cause
Product working environment leads to a high-temperature condition.
What to do
Check the product surrounding ventilation. Check if there's sunshine direct on the product in hot weather.
E16warning
Manual (PDF)
DC Input High (PV or battery voltage is too high)
Likely cause
The total voltage (open circuit voltage) of each PV string is higher than the max DC input voltage of the product.
What to do
Check the PV input voltage. Do not exceed the range of specifications.
E20warning
Manual (PDF)
DC Injection High (High DC injection current)
Likely cause
Product detects a higher DC component in AC output.
What to do
Try to restart the product, and check if it still happens; if not, it means it is just an occasional situation.
E21warning
Manual (PDF)
Back-Up Over Load (Back-up side is overloaded)
Likely cause
The total Back-Up load power is higher than the nominal backup output power.
What to do
Check if the load of the backup port is over-rating output power or not. Reduce the load of the backup port, then restart the product.
E25/26warning
Manual (PDF)
VAC High/Low (Grid voltage is not within permissible range)
Likely cause
Product detects that the AC voltage is beyond the normal.
What to do
Check the AC voltage is in the range of standard voltage in the specification.
E27/28warning
Manual (PDF)
FAC High/Low (Grid Frequency is not within permissible range)
Likely cause
Product detects that Grid frequency is beyond the normal range required by the safety country.
What to do
Check whether frequency is in the range of specification or not.
E31warning
Manual (PDF)
EEPROM Fault (EEPROM R/W fails)
Likely cause
Caused by a strong external magnetic field etc.
What to do
Try to restart the product, and check if it still happens; if not, it means it is just an occasional situation.
E32warning
Manual (PDF)
Comm Fault (Internal communication fails)
Likely cause
Caused by a strong external magnetic field etc.
What to do
Try to restart the product, and check if it still happens; if not, it means it is just an occasional situation.

What it costs in Perth

$6,800

Typical installed price, before rebates

WA Battery Scheme: Depends on your inverter
Federal STCs: −$2,953
You’d pay about: $3,847

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 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 10.94 kWh battery

How it compares

The Dyness Cygni 8.0HS-M3 against the closest-sized batteries from other brands.

Specification	Dyness Cygni 8.0HS-M3Dyness	FoxESS EQ5500-L2FoxESS	SolaX Power T-BAT H 12.0 V2SolaX Power

Usable capacity?	10.94 kWh	10.92 kWh	11 kWhbest value
Continuous power?	Not verified	Not verified	Not verified
Peak power?	Not verified	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 DYNESS

Other CEC-approved products from DYNESS available in Australia.

DYNESS Inverters

Cygni 10.0HS-M12 (AS4777-2 2020)

9.999 kW · 1φ

Cygni 10.0HS-M2 (AS4777-2 2020)

9.999 kW · 1φ

Cygni 10.0HS-M3 (AS4777-2 2020)

9.999 kW · 1φ

Cygni 10.0HS-M4 (AS4777-2 2020)

9.999 kW · 1φ

Cygni 10.0HS-M6 (AS4777-2 2020)

9.999 kW · 1φ

Cygni 10.0HS-M8 (AS4777-2 2020)

9.999 kW · 1φ

View all DYNESS inverters

View full DYNESS 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.

Home battery · Dyness · CEC approved July 2025

Dyness Cygni 8.0HS-M3

CEC listing: Cygni 8.0HS-M3 (AS4777-2 2020)

A 10.94 kWh home battery — smaller home size, the 10–15 kWh band.

Installed in Perth, after rebates: ~$3,847; 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: 10.94kWh; Smaller home size — the 10–15 kWh band

Datasheet (PDF)See the whole Cygni series

Spotted something outdated?

What we can tell you

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

10.94 kWh sits in the smaller home band (10–15 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: 10.94kWh
Round-trip efficiency How much of the energy you store comes back out: 98%
Depth of discharge How much of the battery you can actually use: 95%
Warranty How long the manufacturer stands behind it: 10yr
Battery chemistry Lithium iron phosphate — the long-cycle-life type: LFP

Full datasheet

Every figure on file for the Dyness Cygni, by section.

Full datasheet, by section
Specification	Value
Cell & chemistry
Chemistry	LFP
Capacity & power
Nominal capacity	11.52 kWh
Usable capacity	10.94 kWh
Depth of discharge	95%
Round-trip efficiency	97.5%
Lifespan & degradation
Cycle life	8000 cycles
Physical
IP rating	IP66
Installation requirements
Cable gauge	10 mm²

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.

Duration

years

Throughput

∞

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: 95% usable capacity
•Round-trip Efficiency: 98% 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

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.

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 DYNESS

View Full Profile →

Years in AU Market7+ years

Local SupportNot verified

CEC-Listed Products55 models

7yr AU

CEC-approved products since 2019

7 years in the Australian market

Fault & error codes — Dyness Cygni

Extracted from the installation manual

12 documented

Showing 12 of 12. The official install manual is the authoritative source — always confirm before acting.

E1criticalCall your installer
Manual (PDF)
GFCI Fault (The ground leakage current is high)
Likely cause
Neutral & ground cables are not connected well on the AC side or just occasional failure.
What to do
Check using a multi-meter if there is a high voltage (normally should be lower than 10V) between the N&PE cable on the AC side.
E12criticalCall your installer
Manual (PDF)
DC Bus High (BUS voltage is over-high)
Likely cause
PV or battery voltage is too high.
What to do
Try to restart the product, and check if it still happens; if not, it means it is just an occasional situation.
E19criticalCall your installer
Manual (PDF)
ISO Fault (PV isolation protection)
Likely cause
Isolation failure could be caused by multi reasons like PV panels not grounded well, DC cable is broken, PV panels are aged or surrounding humidity is comparatively heavy.
What to do
Use a multimeter to check if the resistance between the earth & product frame is about zero. If not, please make the connection earth & product frame well.
E10warning
Manual (PDF)
Grid Loss (Not available of public grid power)
Likely cause
Product does not detect the connection of grid or the grid voltage fault.
What to do
Check connections and grid switch to ensure grid power is available.
E14warning
Manual (PDF)
Over Temperature (Temperature inside of the product is too high)
Likely cause
Product working environment leads to a high-temperature condition.
What to do
Check the product surrounding ventilation. Check if there's sunshine direct on the product in hot weather.
E16warning
Manual (PDF)
DC Input High (PV or battery voltage is too high)
Likely cause
The total voltage (open circuit voltage) of each PV string is higher than the max DC input voltage of the product.
What to do
Check the PV input voltage. Do not exceed the range of specifications.
E20warning
Manual (PDF)
DC Injection High (High DC injection current)
Likely cause
Product detects a higher DC component in AC output.
What to do
Try to restart the product, and check if it still happens; if not, it means it is just an occasional situation.
E21warning
Manual (PDF)
Back-Up Over Load (Back-up side is overloaded)
Likely cause
The total Back-Up load power is higher than the nominal backup output power.
What to do
Check if the load of the backup port is over-rating output power or not. Reduce the load of the backup port, then restart the product.
E25/26warning
Manual (PDF)
VAC High/Low (Grid voltage is not within permissible range)
Likely cause
Product detects that the AC voltage is beyond the normal.
What to do
Check the AC voltage is in the range of standard voltage in the specification.
E27/28warning
Manual (PDF)
FAC High/Low (Grid Frequency is not within permissible range)
Likely cause
Product detects that Grid frequency is beyond the normal range required by the safety country.
What to do
Check whether frequency is in the range of specification or not.
E31warning
Manual (PDF)
EEPROM Fault (EEPROM R/W fails)
Likely cause
Caused by a strong external magnetic field etc.
What to do
Try to restart the product, and check if it still happens; if not, it means it is just an occasional situation.
E32warning
Manual (PDF)
Comm Fault (Internal communication fails)
Likely cause
Caused by a strong external magnetic field etc.
What to do
Try to restart the product, and check if it still happens; if not, it means it is just an occasional situation.

What it costs in Perth

$6,800

Typical installed price, before rebates

WA Battery Scheme: Depends on your inverter
Federal STCs: −$2,953
You’d pay about: $3,847

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 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 10.94 kWh battery

How it compares

The Dyness Cygni 8.0HS-M3 against the closest-sized batteries from other brands.

Specification	Dyness Cygni 8.0HS-M3Dyness	FoxESS EQ5500-L2FoxESS	SolaX Power T-BAT H 12.0 V2SolaX Power

Usable capacity?	10.94 kWh	10.92 kWh	11 kWhbest value
Continuous power?	Not verified	Not verified	Not verified
Peak power?	Not verified	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.