Sungrow Battery Review
budgetSungrow is one of the world's largest solar inverter makers, and their SBR battery range pairs seamlessly with Sungrow inverters. Modular design (3.2kWh increments up to 25.6kWh) and competitive entry pricing make them a strong value proposition. If you already have a Sungrow inverter, this is the natural battery choice.
£3,500-£12,500
Installed price range
10 years
Warranty period
China
Country of origin
3
Products available
Sungrow Battery Models
Prices are GBP installed, 0% VAT included, indicative June 2026. Specs are indicative and a dash means the figure is not listed here - confirm current models with your installer.
| Model | Capacity | Peak Output | Continuous | Chemistry | Weight | Backup | Price |
|---|---|---|---|---|---|---|---|
| Sungrow SBR064 6.4kWh | 6.4kWh | 5kW | 5kW | LFP | 56kg | Yes | £3,500-£4,500 |
| Sungrow SBR128 12.8kWh | 12.8kWh | 10kW | 10kW | LFP | 112kg | Yes | £5,500-£7,000 |
| Sungrow SBR256 25.6kWh | 25.6kWh | 20kW | 20kW | LFP | 224kg | Yes | £9,500-£12,500 |
Warranty Details
Duration
10 years
Cycle life
6,000 cycles
Capacity retention
70% at end of warranty
Pros
- Seamless pairing with Sungrow inverters
- Competitive per-kWh pricing
- Modular in 3.2kWh increments
- LFP chemistry
- One of the cheaper 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
Compare Sungrow with Other Brands
Frequently Asked Questions
How much does a Sungrow battery cost in the UK?
A Sungrow battery costs £3,500-£12,500 fully installed in the UK, with 0% VAT already included (indicative June 2026). There is no battery purchase grant in the UK, so the quoted price is the full story. The 0% VAT rate on residential battery installations runs until 31 March 2027 (then 5%) and is typically worth £1,000-3,000 versus the standard 20% rate.
What warranty does Sungrow offer?
Sungrow offers a 10-year warranty or 6,000 cycles (whichever comes first), guaranteeing at least 70% capacity retention. Warranty terms vary by model and configuration - confirm the current terms with your installer.
Is Sungrow a good battery for UK homes?
Sungrow is homeowners with sungrow inverters, or those wanting a reliable budget-friendly battery. Sungrow is one of the world's largest solar inverter makers, and their SBR battery range pairs seamlessly with Sungrow inverters. Modular design (3.