BYD vs Sungrow: Battery Comparison
Head-to-head comparison of BYD and Sungrow home batteries for New Zealand homes in 2026.
| Feature | BYD | Sungrow |
|---|---|---|
| Price range | $9,000-$19,500 | $9,000-$21,500 |
| Capacity options | 5.1kWh, 11kWh, 22.1kWh | 6.4kWh, 12.8kWh, 25.6kWh |
| Peak output | 16.6kW | 20kW |
| Continuous output | 16.6kW | 20kW |
| Chemistry | LFP | LFP |
| Warranty | 10yr / 6,000 cycles | 10yr / 6,000 cycles |
| Capacity retention | 60% | 70% |
| Backup capable | Yes | Yes |
| Modular | Yes | Yes |
| Country | China | China |
| Best for | Homeowners wanting flexibility to start small and expand, or those with existing solar systems | Homeowners with Sungrow inverters, or those wanting a reliable budget-friendly battery |
BYD
Pros
- Most flexible modular system (2.5kWh increments)
- World's largest battery manufacturer
- Competitive pricing per kWh
- Compatible with most solar inverters (Fronius, SMA, GoodWe)
- LFP chemistry
Cons
- Requires separate hybrid inverter
- Not as polished an app as Tesla
- Multiple units needed for larger capacity adds complexity
- Brand less recognised by consumers vs Tesla
Sungrow
Pros
- Seamless pairing with Sungrow inverters
- Competitive per-kWh pricing
- Modular in 3.2kWh increments
- LFP chemistry
- One of the cheapest entry points to home storage
Cons
- Best with a Sungrow inverter (less flexible than BYD)
- Newer to the battery market vs Tesla/BYD
- App could be more polished
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Get Free QuotesFrequently Asked Questions
Is BYD or Sungrow better for New Zealand homes?
BYD is best for: homeowners wanting flexibility to start small and expand, or those with existing solar systems. Sungrow is best for: homeowners with sungrow inverters, or those wanting a reliable budget-friendly battery. Both use LFP chemistry and are available through local installers in New Zealand.
Which is cheaper, BYD or Sungrow?
BYD starts from $9,000 installed, while Sungrow starts from $9,000. Sungrow has the lower entry price.
Which has the better warranty, BYD or Sungrow?
BYD offers 10 years / 6,000 cycles with 60% retention. Sungrow offers 10 years / 6,000 cycles with 70% retention.