BYD Battery Review
mid-rangeBYD is the world's largest battery manufacturer (they also make EVs and buses). Their HVS/HVM home battery range is modular, letting you start small and add capacity later in steps. A popular pick with UK solar installers for its flexibility, competitive pricing, and proven reliability.
£3,000-£12,000
Installed price range
10 years
Warranty period
China
Country of origin
3
Products available
BYD 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 |
|---|---|---|---|---|---|---|---|
| BYD HVS 5.1kWh | 5.1kWh | 5kW | 5kW | LFP | 56kg | Yes | £3,000-£4,000 |
| BYD HVM 11.0kWh | 11kWh | 11kW | 11kW | LFP | 124kg | Yes | £5,500-£7,000 |
| BYD HVM 22.1kWh | 22.1kWh | 16.6kW | 16.6kW | LFP | 248kg | Yes | £9,500-£12,000 |
Warranty Details
Duration
10 years
Cycle life
6,000 cycles
Capacity retention
60% at end of warranty
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
Compare BYD with Other Brands
Frequently Asked Questions
How much does a BYD battery cost in the UK?
A BYD battery costs £3,000-£12,000 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 BYD offer?
BYD offers a 10-year warranty or 6,000 cycles (whichever comes first), guaranteeing at least 60% capacity retention. Warranty terms vary by model and configuration - confirm the current terms with your installer.
Is BYD a good battery for UK homes?
BYD is homeowners wanting flexibility to start small and expand, or those with existing solar systems. BYD is the world's largest battery manufacturer (they also make EVs and buses). Their HVS/HVM home battery range is modular, letting you start small and add capacity later in steps.