Home battery storage
Growatt AXE 20kWh
Growatt AXE 20 kWh LiFePO4 battery: high capacity for large homes while keeping cost per kWh low. Supply plus certified installation.
Price
Warranty
10 years or 6000 cycles
About this product
Why choose 20 kWh over other sizes
The Growatt AXE 20 kWh battery targets large homes with several major loads that need high storage capacity at the best possible cost per kWh.
Compared to 10 or 15 kWh, it can store much more energy on strong production days, covering night-time demand and a good share of morning usage without pushing the budget too far.
It is an attractive option if you want a high degree of independence from the grid but prefer a well‑sized value‑line solution over more expensive premium batteries.
Specifications
Frequently Asked Questions
What type of system is AXE 20 kWh suited for?
For large homes with powerful PV systems and several big loads, where you want to maximise self‑consumption without stepping up to premium‑line pricing.
Is a 20 kWh battery still cost‑effective?
Yes. For this capacity range, the AXE line keeps a very attractive cost per kWh compared to similar solutions.
Should I choose AXE 20 kWh or APX 15 kWh?
It depends on your priorities: AXE 20 kWh gives you more capacity at the best price, while APX 15 kWh offers premium features at a higher cost per kWh.
Documents
User manual
Quick start
Certifications
Other documents
Other ways to go solar with us
If a ready-made kit isn't quite what you need, pick the path that fits.
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Tell us your address and share a recent electricity bill — we size the system, estimate savings, and show a ready proposal.
Best if: you don’t know how many kW you need yet.
Builder
Pick each component yourself: panels, inverter, battery, EV charger. Live price as you go.
Best if: off-grid, hybrid, or a specific brand in mind.