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Home battery · Enphase · CEC approved July 2025
CEC listing: IQBATTERY-5P-3P-INT-2.50-3P (AS4777-2 2020)
A 5 kWh home battery with backup power.
Read from the figures on this page. No review written yet.
The numbers that matter for a home. The full datasheet is below.
Usable capacity
How much energy it stores for you to use
Continuous power
How much it can run at once — the essentials, not the whole house
Round-trip efficiency
How much of the energy you store comes back out
Depth of discharge
You can use the whole battery, not just part of it
Warranty
How long the manufacturer stands behind it
Battery chemistry
Lithium iron phosphate — the long-cycle-life type
Every figure on file for the Enphase IQ Battery 5P with FlexPhase, by section.
| Specification | Value |
|---|---|
| Cell & chemistry | |
| Chemistry | LFP |
| Cell type | Microinverter |
| Capacity & power | |
| Nominal capacity | 5 kWh |
| Usable capacity | 5 kWh |
| Continuous power | 3.84 kW |
| Peak power | 3.84 kW |
| Depth of discharge | 100% |
| Round-trip efficiency | 90% |
| Nominal voltage | 230 V |
| Lifespan & degradation | |
| Cycle life | 6000 cycles |
| Modularity & stacking | |
| Modular / stackable | Yes |
| Maximum stack | 5 kWh |
| Backup & grid services | |
| Backup capable | Yes |
| VPP ready | No |
| Physical | |
| Dimensions (H×W×D) | 980 × 550 × 188 mm |
| Weight | 68.5 kg |
| IP rating | IP55 |
| Operating environment | |
| Operating temperature | -20°C to 55°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.
The warranty covers optimal performance and reliability if the Enphase Energy System is installed according to the instructions. Important exclusions include non-accredited installs and modifications; to make a claim, maintain an internet connection and check warranty status on the Enphase App.
15
years
∞
MWh
55°
celsius
Level 0
No Backup
Enphase Australia
Direct manufacturer warranty. Australian consumer law applies.
Rated to 55°C, which covers Perth's hottest days.
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
17 years in the Australian market
$8,500
Typical installed price, before rebates
The WA rebate is $0 here: AC-coupled batteries need an approved gateway under the current WA rules. STCs assume about $39.9 a certificate. Estimates only; your quote will vary.
Usable capacity, for one battery system
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.
Estimated federal rebate (STCs) for this 5 kWh battery
The Enphase IQBATTERY-5P-3P-INT-2.50-3P against the closest-sized batteries from other brands.
| Specification | Alpha ESS SMILE-M-BAT-5PAlpha ESS | Anker X1-B5-HAnker | |
|---|---|---|---|
| Usable capacity? | 5 kWh | 5 kWh | 5 kWh |
| Continuous power? | 3.84 kW | Not verified | Not verified |
| Peak power? | 3.84 kW | Not verified | Not verified |
| Round-trip efficiency? | 90% | 92%best value | 92%best value |
| Warranty | 15 years | Not verified | Not verified |
| Chemistry | LFP | LFP | LFP |
Specs from the CEC register and datasheet enrichment. Indicative — confirm exact figures with your installer.
Other CEC-approved products from ENPHASE available in Australia.
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 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.