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Home battery · BYD · CEC approved June 2026

BYD HVB 26.7

A 26.72 kWh home battery — medium home size, the 20–30 kWh band.

Installed in Perth, after rebates: ~$18,183; 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: 26.72kWh; Medium home size — the 20–30 kWh band

Datasheet (PDF)See the whole BATTERY-BOX HVB series

What we can tell you

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

26.72 kWh sits in the medium home band (20–30 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 How much energy it stores for you to use: 26.72kWh
Continuous power How much it can run at once — most of a home, but not everything at full tilt: 7.65kW
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: 90%
Warranty 60% of capacity guaranteed at the end of it: 5yr
Battery chemistry Lithium iron phosphate — the long-cycle-life type: LFP

Full datasheet

Every figure on file for the BYD BATTERY-BOX HVB, by section.

Full datasheet, by section
Specification	Value
Cell & chemistry
Chemistry	LFP
Capacity & power
Continuous power	7.65 kW
Round-trip efficiency	96%
Lifespan & degradation
Capacity retained at year 10	60%
Warranted throughput	14.85 MWh
Physical
Dimensions (H×W×D)	585 × 712 × 298 mm
Weight	91 kg
IP rating	IP55
Operating environment
Operating temperature	-10°C to 50°C
Installation requirements
Top clearance	12 mm
Side clearance	19 mm
Front clearance	19 mm
AC breaker	40 A
Cable gauge	10 mm²
Earthing method	Not specified
DNSP pre-approval	No
Estimated install time	5 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.

This warranty covers defects for 5 years and retains 60% capacity for 7 years. It voids if improperly installed or exposed to extreme temperatures. Claims can be made through BYD Partner.

Duration

years

Throughput

14.85

MWh

Max Temp

50°

celsius

Max Backup

Level 0

No Backup

Australian support structure

Australian Office10 years in AU market

BYD Australia

Direct manufacturer warranty through Australian subsidiary.

Perth heat

Rated to 50°C, which covers Perth's hottest days.

Key warranty terms

•Depth of Discharge: 90% 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 50°C

✗ Non-transferableFull replacement≥60% 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 BYD

View Full Profile →

Years in AU Market10+ years

Local SupportNot verified

CEC-Listed Products45 models

10yr AU

CEC-approved products since 2016

10 years in the Australian market

Fault & error codes — BYD BATTERY-BOX HVB

Extracted from the installation manual

14 documented

Showing 14 of 14. The official install manual is the authoritative source — always confirm before acting.

11criticalCall your installer
Manual (PDF)
BMS and BMU communication failure
Likely cause
Communication issue between Battery Management System and Battery Management Unit
What to do
Contact your installer to check communication configurations.
12criticalCall your installer
Manual (PDF)
Inverter communication failure
Likely cause
Inability to establish a communication link with the inverter
What to do
Inspect the connection to the inverter; contact installer if issue persists.
14criticalCall your installer
Manual (PDF)
System initiating failed
Likely cause
The system was unable to start up properly
What to do
Contact your installer for diagnosis and possible reset.
2criticalCall your installer
Manual (PDF)
Precharge transistor or relay failure
Likely cause
Failure in the precharge circuit during system initialization
What to do
Contact installer for further diagnosis and repairs.
5criticalCall your installer
Manual (PDF)
BCU voltage sensor faulty
Likely cause
Issue with the BCU voltage sensing circuit
What to do
Contact your installer to replace or check the BCU.
6criticalCall your installer
Manual (PDF)
Current sensor failure
Likely cause
Problem with current sensing circuit
What to do
Contact installer for immediate action.
8criticalCall your installer
Manual (PDF)
Precharge failed
Likely cause
Failure in the precharge process of the battery system
What to do
Contact the installer to diagnose the precharge circuit.
1warning
Manual (PDF)
DC cable connection incorrect
Likely cause
Improper connection of the DC cables to the battery system
What to do
Check the DC cable connections and ensure they are properly connected.
13warning
Manual (PDF)
Address registration failed
Likely cause
Failure during address registration process in the system
What to do
Check for address configuration; contact installer if unclear.
3warning
Manual (PDF)
BIC (battery information collector) communication failed
Likely cause
Communication error between the battery and BIC
What to do
Ensure the cables are connected correctly and the BIC is functioning properly.
4warning
Manual (PDF)
Battery sensor failure
Likely cause
Faulty sensor or connectivity issue
What to do
Check the battery connections; if the problem persists, contact the installer.
7warning
Manual (PDF)
Cell data abnormal
Likely cause
Inconsistent data from battery cells
What to do
Monitor the system for further errors; contact installer if issues occur.
9warning
Manual (PDF)
BIC balancing failed
Likely cause
Balancing issue detected in the BIC
What to do
Check BIC and battery balancing status; contact installer if necessary.
10info
Manual (PDF)
Reserved
Likely cause
N/A
What to do
No action required.

What it costs in Perth

$24,048

Typical installed price, before rebates

WA Battery Scheme: Depends on your inverter
Federal STCs: −$5,865
You’d pay about: $18,183

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 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 26.72 kWh battery

How it compares

The BYD HVB 26.7 against the closest-sized batteries from other brands.

Specification	BYD HVB 26.7BYD	BSL Battery HVS 5BSL Battery	Redback Technologies RED-P1-BE28HVRedback Technologies

Usable capacity?	26.72 kWhbest value	26.62 kWh	26.6 kWh
Continuous power?	7.65 kW	Not verified	Not verified
Peak power?	Not verified	Not verified	Not verified

Round-trip efficiency?	96%best value	92%	92%
Warranty	5 years	Not verified	Not verified
Chemistry	LFP	LFP	LFP

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

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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.