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Home battery · Cesc · CEC approved January 2026

Cesc Mars HV5-02-2

A 9.54 kWh home battery.

Installed in Perth, after rebates: ~$6,509; 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: 9.54kWh; Below the smaller-home band

Datasheet (PDF)See the whole Mars HV5-02 series

What we can tell you

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

9.54 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 How much energy it stores for you to use: 9.54kWh
Continuous power How much it can run at once — enough for a whole home, air conditioning included: 10.6kW
Round-trip efficiency How much of the energy you store comes back out: 90%
Depth of discharge How much of the battery you can actually use: 90%
Warranty 80% of capacity guaranteed at the end of it: 10yr
Battery chemistry Lithium iron phosphate — the long-cycle-life type: LFP(LiFePO4)

Full datasheet

Every figure on file for the Cesc Mars HV5-02, by section.

Full datasheet, by section
Specification	Value
Cell & chemistry
Chemistry	LFP(LiFePO4)
Cell type	null
Capacity & power
Nominal capacity	10.6 kWh
Usable capacity	9.54 kWh
Continuous power	10.6 kW
Peak power	10.6 kW
Depth of discharge	90%
Round-trip efficiency	90%
Nominal voltage	204.8 V
Lifespan & degradation
Cycle life	6000 cycles
Capacity retained at year 10	80%
Warranted throughput	100 MWh
Modularity & stacking
Modular / stackable	Yes
Maximum stack	10.6 kWh
Backup & grid services
Backup capable	No
VPP ready	No
Physical
Dimensions (H×W×D)	900 × 740 × 220 mm
Weight	116 kg
IP rating	IP65
Operating environment
Operating temperature	0°C to 50°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

Warranty and support

Warranty terms and Australian support structure.

This warranty covers equipment malfunctions for 10 years with 80% capacity retention. Claims can be made by contacting support. Warranty voids include unauthorized installations.

Duration

years

Throughput

100

MWh

Max Temp

50°

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

Key warranty terms

•Depth of Discharge: 90% usable capacity
•Round-trip Efficiency: 90% rated
•Annual Degradation: ~2.5% per year expected
•Installation: Must be installed by SAA-accredited installer
•Operating Conditions: 0°C to 50°C

✓ TransferableFull replacement≥80% 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 CESC

View Full Profile →

Years in AU Market0+ years

Local SupportNot verified

CEC-Listed Products10 models

AU Listed

Listed on CEC Approved Products Register

0 years in the Australian market

Fault & error codes — Cesc Mars HV5-02

Extracted from the installation manual

18 documented

Showing 18 of 18. The official install manual is the authoritative source — always confirm before acting.

Over currentcriticalCall your installer
Manual (PDF)
The battery system has detected a current that exceeds the safe operating limits.
Likely cause
External loads connected to the battery may be drawing too much current.
What to do
Contact your dealer or technical support.
Over voltagecriticalCall your installer
Manual (PDF)
The battery system has detected a voltage that exceeds the safe operating range.
Likely cause
Possible issues with the charging system or faulty components.
What to do
Contact your dealer or technical support.
Precharge errorcriticalCall your installer
Manual (PDF)
An issue detected during the precharging process.
Likely cause
Faulty connections or components.
What to do
Contact your dealer or technical support.
Relay errorcriticalCall your installer
Manual (PDF)
The battery system has detected an issue with the relay.
Likely cause
Failing or faulty relay components.
What to do
Contact your dealer or technical support.
Self-test failurecriticalCall your installer
Manual (PDF)
The battery unit has failed its self-check diagnostics.
Likely cause
Internal component malfunction.
What to do
Contact your dealer or technical support.
Under voltagecriticalCall your installer
Manual (PDF)
The battery system has detected a voltage that is below the safe operating range.
Likely cause
Possible battery depletion or faulty connections.
What to do
Contact your dealer or technical support.
Over temperaturewarning
Manual (PDF)
The battery system has reached a temperature above the safe operating limit.
Likely cause
Poor ventilation or prolonged heavy usage.
What to do
Wait until the temperature returns to normal before restarting the system.
PCB over temperaturewarning
Manual (PDF)
The printed circuit board has reached an unsafe temperature.
Likely cause
Poor ventilation or malfunctioning cooling system.
What to do
Wait until the temperature returns to normal before restarting the system.
RIM-OCwarningCall your installer
Manual (PDF)
Over current
Likely cause
Current exceeds the specified limit
What to do
Please contact your dealer or technical support.
RIM-OTwarning
Manual (PDF)
Over temperature
Likely cause
Battery module temperature exceeds the max limit
What to do
Wait till the temperature of cell goes back to the normal state.
RIM-OVwarningCall your installer
Manual (PDF)
Over voltage
Likely cause
Voltage supply exceeds the acceptable range
What to do
Please contact your dealer or technical support.
RIM-PPCB-OTwarning
Manual (PDF)
PCB over temperature
Likely cause
PCB temperature exceeds the max limit
What to do
Wait till the temperature of cell goes back to the normal state.
RIM-PrechargeErrwarningCall your installer
Manual (PDF)
Precharge error
Likely cause
Precharge process failed
What to do
Please contact your dealer or technical support.
RIM-RelayErrwarningCall your installer
Manual (PDF)
Relay error
Likely cause
Relay not functioning properly
What to do
Please contact your dealer or technical support.
RIM-SelfTestFailwarningCall your installer
Manual (PDF)
Self-test failure
Likely cause
Self-check did not complete successfully
What to do
Please contact your dealer or technical support.
RIM-UTwarning
Manual (PDF)
Under temperature
Likely cause
Battery module temperature falls below the min limit
What to do
Wait till the temperature of cell goes back to the normal state.
RIM-UVwarningCall your installer
Manual (PDF)
Under voltage
Likely cause
Voltage supply falls below the acceptable range
What to do
Please contact your dealer or technical support.
Under temperaturewarning
Manual (PDF)
The battery system is operating at a temperature below the safe operating limit.
Likely cause
Cold weather conditions affecting battery performance.
What to do
Wait until the temperature returns to normal before restarting the system.

What it costs in Perth

$9,063

Typical installed price, before rebates

WA Battery Scheme: Depends on your inverter
Federal STCs: −$2,554
You’d pay about: $6,509

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 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 9.54 kWh battery

How it compares

The Cesc Mars HV5-02-2 against the closest-sized batteries from other brands.

Specification	Cesc Mars HV5-02-2Cesc	Alpha ESS SMILE-B5 IIAlpha ESS	Alpha ESS SMILE-S5 IIAlpha ESS

Usable capacity?	9.54 kWh	9.576 kWhbest value	9.576 kWhbest value
Continuous power?	10.6 kW	Not verified	Not verified
Peak power?	10.6 kW	Not verified	Not verified

Round-trip efficiency?	90%	92%best value	92%best value
Warranty	10 years	Not verified	Not verified
Chemistry	LFP(LiFePO4)	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.