Enough stored energy for the selected high-use night plus losses, reserve and winter headroom.
AUSTRALIA ONLY
Compare · Home batteries
Compare home batteries without the sales pitch.
Size it for your home, then compare compatible systems.
✓Sourced facts. Clearly labelled opinion.
A better way to start
Start with your household.
Use your bill, night usage and solar to estimate a sensible size.
Home battery planner · about 2 minutes
Tell us how your home uses power.
We estimate the useful battery size and inverter power.
Capacity is how long the battery lasts.
Power is what it can run at the same time.
Power is what it can run at the same time.
Your live planning result
Here is how the numbers were built.
Every answer above updates this page. The headline result is followed by the full calculation trail so you can challenge the assumptions before asking for quotes.
Updates with every answer
Estimated continuous output needed when your selected appliances overlap, including a planning margin.
Solar looks reasonably matched for a conservative winter day.
Calculation trail
Validate each step.
The planner deliberately shows its working. These are broad planning assumptions, not a simulation of your interval-meter data.
Daily-use baseline
- Bill input
- 1200 kWh ÷ 60 days
- Daily average
- 20.0 kWh
- Solar-use correction
- 23.0 kWh/day
We add 15% because a power bill normally misses solar consumed directly in the home.
High-use night
- Most overnight use
- 10.4 kWh
- Base house + selected appliances
- 3.5 + 0.0 kWh
- Higher scenario selected
- 10.4 kWh
The planner takes the higher of the bill-derived night and the appliance scenario, rather than adding both and counting the same usage twice.
Battery allowances
- Conversion losses
- +0.9 kWh
- Seasonal / ageing headroom
- +2.0 kWh
- 10% operating reserve
- +1.5 kWh
After rounding to the next 0.5 kWh step, the usable battery target is 15.0 kWh.
Inverter concurrency
- Base household load
- 1.2 kW
- Selected appliance peaks
- 0.0 kW
- 85% overlap + 15% margin
- 1.4 kW
The target rounds up to 5 kW, with a 5 kW minimum. Motor start-up surges still need model-specific checking.
6.6 kW of solar × 3.3 winter yield hours
That gives a conservative estimate of 21.8 kWh per day, or about 145% of the recommended battery. Roof direction, shade, weather and daytime household use can reduce what reaches the battery.
Maximum installed budget$25,000
Move the budget and the product shortlist will re-rank immediately.
$8kPlanning allowance only$80kResearch-based shortlist
Best matching battery + inverter systems
Your supply type is not confirmed, so the inverter model shown remains phase-dependent. Cost figures are planning allowances, not retailer quotes.
Why the inverter is now part of every result
DC-coupled batteries need a supported hybrid inverter. Integrated and AC-coupled batteries already contain their battery inverter, but may still need a controller, gateway or backup interface. The finder now selects the smallest verified model that covers the calculated continuous-output target; the exact code still needs to appear on the installer's proposal.
01SBH100–400
Supports single-phase and three-phase; your home supply still needs confirmation. The suggested configuration is 0.0 kWh above the target.
- Suggested battery configuration
- 15.0 kWh · 3 modules
- Inverter power validation
- Up to 8.0 kW covers the 5 kW target
- Installed-cost allowance
- $12,000
Within selected budget
Matched hybrid inverterPower target covered
Sungrow SH8.0RS
Compatible family: SH8.0/10RS
Sungrow lists the newer SH-RS family as a supported single-phase route for SBH storage.
- Home supply: Single-phase - confirm this before accepting the recommendation
- Planner target: 5 kW continuous output
- Selected model output: 8.0 kW
- Verified family ceiling: 10.0 kW
Check on the quote: Confirm the exact SBH module count, SH-RS generation and backup hardware.
Ready to price-check this match?
Your battery size, supply type and recommended inverter are carried into the form. TechManPat reviews the request before it is passed to a relevant Australian installer.
02IQ Battery 5P FlexPhase
Supports single-phase and three-phase; your home supply still needs confirmation. The suggested configuration is 0.0 kWh above the target.
- Suggested battery configuration
- 15.0 kWh · 3 modules
- Inverter power validation
- Up to 11.5 kW covers the 5 kW target
- Installed-cost allowance
- $14,500
Within selected budget
Embedded AC inverterPower target covered
Enphase 3 × IQ Battery 5P embedded microinverter set
Compatible family: IQ Battery 5P embedded microinverters
Each battery includes grid-forming microinverters, so an existing solar inverter does not need to be replaced solely to add storage.
- Home supply: Single-phase - confirm this before accepting the recommendation
- Planner target: 5 kW continuous output
- Selected model output: 11.5 kW
- Verified family ceiling: 11.5 kW
Check on the quote: Backup operation requires the correct IQ System Controller and balance-of-system hardware.
03Smart String ESS
Supports single-phase and three-phase; your home supply still needs confirmation. The suggested configuration is 0.0 kWh above the target.
- Suggested battery configuration
- 15.0 kWh · 3 modules
- Inverter power validation
- Up to 5.0 kW covers the 5 kW target
- Installed-cost allowance
- $11,500
Within selected budget
Matched hybrid inverterPower target covered
iStore iStore 5.0 kW single-phase hybrid
Compatible family: iStore Hybrid Inverter Range
The iStore battery is designed around the matching iStore hybrid ecosystem.
- Home supply: Single-phase - confirm this before accepting the recommendation
- Planner target: 5 kW continuous output
- Selected model output: 5.0 kW
- Verified family ceiling: 10.0 kW
Check on the quote: Several generations share similar names; require exact inverter and battery model codes.
Use this as an education and quote-checking tool.
It cannot see interval-meter data, appliance model numbers, roof shade, network limits, tariffs or installer design. Ask an accredited installer to verify usable capacity, continuous and surge power, phase behaviour, backup circuits and valid battery/inverter pairings.
Australian battery catalogue
Compare complete systems.
30 detailed profiles · 3,344 screened CEC model listings.
batteryOur opinion
Powerwall 3
A polished all-in-one battery with a built-in solar inverter.
- Capacity
- 13.5–54 kWh
- Design
- Integrated
- Supply
- Single-phase
batteryOur opinion
SigenStor
A modular 5-in-1 system that combines storage, inverter and energy control.
- Capacity
- 5.2–48 kWh
- Design
- Integrated
- Supply
- 1 & 3 phase
batteryOur opinion
APX HV
A flexible LFP stack designed around Growatt hybrid inverters.
- Capacity
- 4.5–27 kWh
- Design
- DC-coupled
- Supply
- 1 & 3 phase
batteryOur opinion
SBR096–256
A widely paired high-voltage LFP battery for Sungrow hybrid systems.
- Capacity
- 6.4–25.6 kWh
- Design
- DC-coupled
- Supply
- 1 & 3 phase
batteryOur opinion
SBH100–400
A higher-power 5 kWh modular LFP stack for newer Sungrow hybrid systems.
- Capacity
- 10–40 kWh
- Design
- DC-coupled
- Supply
- 1 & 3 phase
batteryOur opinion
CQ7
A new high-voltage LFP stack spanning large residential and light-commercial capacities.
- Capacity
- 13.92–97.44 kWh
- Design
- DC-coupled
- Supply
- 1 & 3 phase
Do not ignore the inverter
The inverter matters too.
Check output, phases, backup hardware and compatibility.
Compare 17 inverter families →Open the battery price per kWh index →Embed the free battery calculator →HOW TECHMANPAT COMPARES
Facts and opinion stay separate.
- Australian availability
- Valid battery and inverter pairings
- Usable capacity and real output
- Backup behaviour
- Warranty conditions
Compare Watch
Battery price watch
Meaningful installed-price movements and major new Australian battery launches. No generic daily newsletter and no pretending every tiny change matters.