Home Battery Cost Guide
How much do home batteries cost in Australia? We break down prices by size, brand, and what you'll pay after the federal rebate.
lightbulbQuick Answer
The most popular home battery size is 10-13 kWh, costing $10,000 - $16,000 before the federal rebate. After the ~30% Cheaper Home Batteries rebate, expect to pay $7,000 - $11,000 out of pocket. With the rebate ending May 2026, now is the time to act.
Battery Costs by Size
Popular Battery Prices
| Battery | Capacity | Full Price | After Rebate | $/kWh |
|---|---|---|---|---|
| Tesla Powerwall 3 | 13.5 kWh | $12,000-$16,000 | $8,000-$11,950 | $890-$1,185 |
| BYD Battery-Box Premium | 10.2 kWh | $8,500-$11,000 | $5,440-$7,940 | $830-$1,080 |
| Sungrow SBR | 9.6 kWh | $7,500-$10,000 | $4,620-$7,120 | $780-$1,040 |
| Enphase IQ Battery | 10.08 kWh | $12,000-$16,000 | $8,976-$12,976 | $1,190-$1,590 |
| Alpha ESS SMILE5 | 5.7 kWh | $6,500-$9,000 | $4,790-$7,290 | $1,140-$1,580 |
* Prices include installation. Actual costs vary by location and installer. $/kWh helps compare value across different sizes.
What Affects Battery Prices?
Battery Chemistry
Medium ImpactLFP (Lithium Iron Phosphate) is standard. Longer life, safer, slightly larger. NMC is more compact but shorter-lived.
Inverter Integration
High ImpactAll-in-one batteries with built-in inverters (Tesla, Alpha ESS) cost more upfront but simplify installation. AC-coupled systems may need a separate battery inverter.
Installation Complexity
Medium ImpactIndoor vs outdoor, wall vs floor mount, electrical upgrades needed. Can add $500-$2,000.
Backup Capability
Low-Medium ImpactFull home backup requires additional hardware (backup gateway, compatible inverter). Adds $500-$1,500.
Get Your Battery Quote
Prices vary by installer and location. Get a personalised quote to see your exact costs after the federal rebate.
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