Side-by-Side Comparison
Solar Battery Comparison 2025
Compare top solar battery brands side-by-side
Tesla Powerwall 3
From $13,990
Capacity:13.5kWh
Warranty:10 years
Efficiency:97.5%
Backup:Yes - Full Home
Pros:
- Premium brand
- Tesla app
- Sleek design
- Best efficiency
Cons:
- Higher upfront cost
- Limited availability
Best For:
Premium buyers wanting the best technology and Tesla ecosystem integration
Alpha ESS
From $8,490
Capacity:10kWh (expandable)
Warranty:10 years
Efficiency:95%
Backup:Yes - UPS capable
Pros:
- Great value
- Modular design
- LiFePO4 chemistry
- VPP ready
Cons:
- Less brand recognition
Best For:
Value-conscious buyers wanting reliable, expandable systems
Sungrow
From $9,200
Capacity:9.6-12.8kWh
Warranty:10 years
Efficiency:95%
Backup:Yes
Pros:
- Proven reliability
- Good warranty
- Multiple sizes
Cons:
- Heavier unit
Best For:
Households wanting established brand with proven track record
| Feature | Tesla Powerwall 3 | Alpha ESS | Sungrow |
|---|---|---|---|
| Price (After Rebates) | From $13,990 | From $8,490 | From $9,200 |
| Capacity | 13.5kWh | 10kWh (expandable) | 9.6-12.8kWh |
| Warranty | 10 years | 10 years | 10 years |
| Round-Trip Efficiency | 97.5% | 95% | 95% |
| Backup Power | Yes - Full Home | Yes - UPS capable | Yes |
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| Best For | Premium buyers wanting the best technology and Tesla ecosystem integration | Value-conscious buyers wanting reliable, expandable systems | Households wanting established brand with proven track record |
| Get Quote | Get Quote | Get Quote |
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