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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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CEC approved: Dec 2025Report outdated info

HYXiPOWER HYX-E400-H2

Name: HYXiPOWER HYX-E400-H2
Brand: HYXiPOWER

High Voltage Battery series

CEC Approved

View datasheet (PDF)

Part of High Voltage Battery — see all configurations

Usable capacity: 42.4 kWh
Round-trip efficiency: 92%
Warranty: 15 yr
Chemistry: LFP

Full specifications

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.

Capacity & power

Nominal capacity: 42.4 kWh
Usable capacity: 42.4 kWh

Lifespan & degradation

Capacity retained at year 10: 70%
Warranted throughput: 48.6 MWh

Resources

Datasheet Warranty terms Installation guide

Warranty and support

Warranty terms and Australian support structure.

HYXiPOWER offers a warranty of up to 15 years on certain products. Exclusions apply for improper installation. To claim, report damages within 14 days with required details.

Duration

years

Throughput

48.6

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 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: 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.

AC-coupled system: needs a gateway device on the Synergy SSL (e.g. SMA, Redback) for full eligibility, or a same-brand inverter + battery pair (Sungrow or Fronius) for shared compliance. Without one, export is limited to 1.5kW and VPP/DEBS/rebate/loan are unavailable. 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 HYXiPOWER

View Full Profile →

Years in AU Market1+ years

Local SupportNot verified

CEC-Listed Products8 models

1yr AU

CEC-approved products since 2025

1 year in the Australian market

Fault & error codes — HYXiPOWER High Voltage Battery

Extracted from the installation manual

20 documented

Showing 20 of 20. The official install manual is the authoritative source — always confirm before acting.

Battery charging high temperaturecriticalCall your installer
Manual (PDF)
Battery temperature exceeds safe operating limits during charging.
Likely cause
Environmental or operational factors.
What to do
Prohibition of charge/high voltage relay disconnection. Ensure battery temperature is below 40℃ before restarting and contact support if necessary.
Battery charging over-voltagecriticalCall your installer
Manual (PDF)
Battery input voltage exceeds safe limits.
Likely cause
Improper charging voltage.
What to do
Prohibition of charge/high voltage relay disconnection. Restart the device and contact Hyxi after-sales staff to solve the problem.
Battery charging overcurrentcriticalCall your installer
Manual (PDF)
Battery is receiving too much charging current.
Likely cause
Overloading during charging.
What to do
Prohibition of charge/high voltage relay disconnection. Restart the device and contact Hyxi after-sales staff to resolve.
Battery discharge high temperaturecriticalCall your installer
Manual (PDF)
Battery temperature exceeds safe operating limits during discharge.
Likely cause
Excessive load or environmental conditions.
What to do
Prohibition of discharge/high voltage relay disconnection. Turn off the load until the battery temperature drops below 40℃ and contact support if necessary.
Battery discharge overcurrentcriticalCall your installer
Manual (PDF)
Battery discharge is drawing too much current.
Likely cause
Excessive load on the battery.
What to do
Prohibition of discharge/high voltage relay disconnection. Turn off part of the load and reboot the device.
Battery discharge undervoltagecriticalCall your installer
Manual (PDF)
Battery voltage is too low for discharge.
Likely cause
Insufficient battery energy.
What to do
Prohibition of discharge/high voltage relay disconnection. Restart the device and contact Hyxi after-sales staff to solve.
Battery discharging low temperaturecriticalCall your installer
Manual (PDF)
Battery temperature is too low for discharge.
Likely cause
Cold environmental conditions.
What to do
Prohibition of discharge/high voltage relay disconnection. Wait until the temperature is above 2℃ before restarting and contact support if necessary.
Battery temperature detection sensor failurecriticalCall your installer
Manual (PDF)
Temperature sensor failure in the battery.
Likely cause
Sensor malfunction.
What to do
Prohibit high voltage and charging/discharging. Restart device and contact support for resolution.
BDU main positive relay failurecriticalCall your installer
Manual (PDF)
Failure of the main positive relay in the BDU.
Likely cause
Mechanical or electrical failure.
What to do
Prohibit high voltage and charging/discharging relays. Contact support for resolution.
BDU overtemperaturecriticalCall your installer
Manual (PDF)
Battery distribution unit temperature exceeds limits.
Likely cause
Overloading or environmental conditions.
What to do
Prohibition of charging and discharging. Ensure BDU temperature is below 70℃ before resuming and contact support.
BMS self-test faultcriticalCall your installer
Manual (PDF)
Battery Management System self-test failure.
Likely cause
Faulty BMS or wiring issues.
What to do
Prohibit high voltage. Restart the device and contact support if necessary.
Cell voltage sampling line failurecriticalCall your installer
Manual (PDF)
Failure in sampling cell voltage line.
Likely cause
Connection issues or hardware failure.
What to do
Prohibit high voltage and charging/discharging. Restart device and contact support if the issue persists.
Current collection sensor overtemperaturecriticalCall your installer
Manual (PDF)
Sensor temperature exceeds operational limits.
Likely cause
Overworking or faulty sensor.
What to do
Prohibition of charging and discharging. Ensure sensor temperature is below 70℃ before resuming and contact support.
Excessive battery temperature differencecriticalCall your installer
Manual (PDF)
Temperature difference across battery exceeds safe limits.
Likely cause
Ineffective heat dissipation or environmental factors.
What to do
Prohibition of discharge and charge/high voltage relay disconnection. Ensure temperature difference is less than 4℃ before resuming and contact support.
Low insulation resistance of BDUcriticalCall your installer
Manual (PDF)
Insulation resistance of the battery distribution unit is below safe levels.
Likely cause
Deterioration or damage to wiring.
What to do
Prohibit high voltage. Restart device and contact support.
Pre-charge faultcriticalCall your installer
Manual (PDF)
Fault detected during pre-charge phase.
Likely cause
Electrical issues or improper setup.
What to do
Prohibit high voltage. Restart the device and contact support if problem persists.
Battery pack communication lostwarningCall your installer
Manual (PDF)
Lost communication with battery pack.
Likely cause
Connection issue with BDU and pack.
What to do
High voltage relay disconnection. Check connections and contact support if issue continues.
Loss of communication with PCSwarningCall your installer
Manual (PDF)
Lost communication with power control system.
Likely cause
Communication line failure.
What to do
High voltage relay disconnection. Check connections between BDU and PCS and contact support if the issue persists.
Smoke sensor communication lostwarningCall your installer
Manual (PDF)
Smoke sensor communication failure.
Likely cause
Faulty wiring or equipment issue.
What to do
High voltage relay disconnection. Contact support for assistance.
Tandem cascade communication lostwarningCall your installer
Manual (PDF)
Lost communication in tandem cascade setup.
Likely cause
Connection issue in tandem setups.
What to do
High voltage relay disconnection. Contact support for resolution.

Perth pricing

Typical installed price

$38,160

WA State RebateSubject to eligibility

Federal STCs-$6,663

After Rebates~$31,497

Prices are estimates. Final pricing depends on installation requirements. STC value is based on the current certificate price of about $39.9.

The WA Battery Scheme rebate (up to $1,300) requires a Synergy-approved (SSL) inverter and VPP enrolment — not all systems qualify, so it is not included above. Confirm eligibility with your installer.

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Part of the HYXiPOWER High Voltage Battery

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How it compares

The HYXiPOWER HYX-E400-H2 against the closest-sized batteries from other brands.

Specification	HYXiPOWER HYX-E400-H2HYXiPOWER	Sigenergy SigenStor-10S-42.92 (AS4777-2 2020)Sigenergy	Sigenergy SigenStor-12S-42.92 (AS4777-2 2020)Sigenergy

Usable capacity?	42.4 kWh	42.6 kWhbest value	42.6 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	15 yearsbest value	10 years	10 years
Chemistry	LFP	LFP	LFP

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

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