Home battery storage
Growatt APX 25kWh
Growatt APX 25 kWh LiFePO4 battery for large homes wanting multi-day storage and maximum solar flexibility. Supply plus certified installation.
Price
Warranty
10 years or 6000 cycles
About this product
Why choose 25 kWh over other sizes
The Growatt APX 25 kWh battery is aimed at users who want to go beyond high self-consumption and reach more than two days of covered usage, still with the safety of grid backup.
Compared to 20 kWh, this size adds a further cushion that becomes clear during cloudy periods, high-consumption weekends or when multiple large loads run together with one or more EVs charging.
It is particularly attractive for large homes occupied year-round, with intensive electric heating or cooling, home offices and several electric cars, where the priority is to use as much self-generated energy as possible.
If you want a solution that smooths out day-to-day solar variability, 25 kWh significantly reduces the impact of cloudy days and lets you increase consumption at specific times without draining the battery.
Specifications
Frequently Asked Questions
What is the advantage of 25 kWh compared to 20 kWh?
It provides additional autonomy that is especially valuable on cloudy days or when several large loads run together, further reducing the need to import energy from the grid.
Does 25 kWh make sense if I do not have an EV?
It can, for very large homes with heavy electric usage. However, many users without EVs find 15–20 kWh to be a better cost-to-benefit balance.
Can I still expand if 25 kWh turns out to be insufficient?
Yes. The APX range can be expanded up to 30 kWh, so you can start with 25 kWh and add another module when your needs grow.
Documents
User manual
Quick start
Datasheet
Other ways to go solar with us
If a ready-made kit isn't quite what you need, pick the path that fits.
Auto-design
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.