Solar battery with back up

A home battery with backup functionality ensures that you can still access electricity during a power outage. This can be achieved in two different ways: through a fully automatic backup power system, such as the new Tesla Powerwall 3, or through a manual backup solution using a Schuko socket connection, as found on the Zendure Solarflow models. Both systems can be used during a power outage, but they operate in completely different ways. Wallbox Discounter offers various home batteries with backup capabilities, suitable for different situations and budgets.

What is a home battery with backup functionality?

A home battery with backup functionality is designed to provide power when the normal grid supply fails. As described above, the new Tesla Powerwall 3 offers the most complete backup solution of all home batteries with backup. This battery automatically switches to island mode during a power outage, allowing your entire home or a selected circuit in the electrical panel to continue operating. The Zendure Solarflow models do not offer automatic switchover functionality, but they do include a convenient Schuko outlet. During a power failure, you can simply connect appliances directly to the battery and continue using electricity even when the grid is unavailable.

Why is a backup function a good idea?

With a home battery that includes backup functionality, you become less dependent on the power grid and experience fewer issues during power outages or grid failures. You can choose an automatic system that immediately takes over the power supply or a more flexible solution with lower costs. Below, we take a closer look at the available home batteries with backup functionality.

Which home batteries with backup are the best in 2025?

Tesla Powerwall 3

The Tesla Powerwall 3 is the ultimate choice if you are looking for a home battery with a built-in inverter. The Powerwall automatically takes over during a power outage, allowing your home or a specific electrical circuit to keep running. With a capacity of 13.5 kWh, this home battery provides more than enough energy to power a large household throughout the evening. This smart home battery is therefore ideal for families or businesses that require maximum energy security.

Zendure AB2000X + Ace 1500 Inverter

The Zendure Solarflow AB2000X combination is an excellent choice for households looking to start with a small home battery. In addition, it is a modular home battery that can later be expanded to multiple batteries with a maximum storage capacity of 7.68 kWh. To operate the AB2000X, you need the Ace 1500 inverter. This inverter features two power outlets, allowing you to connect household appliances directly. It also converts solar energy into usable electricity for your home. This combination comes with a 2-year warranty and is available from 1.92 kWh.

Zendure AB3000X + 2400 AC Inverter

The Zendure AB3000X combination is essentially the bigger brother of the AB2000X mentioned above. This plug-in home battery provides 2.88 kWh of storage with a single battery and can be expanded modularly up to 17.28 kWh. Just like the Ace 1500, the 2400 AC inverter converts stored energy into usable household electricity. In addition, this inverter includes a power outlet for connecting a plug or extension lead. This makes it ideal for powering multiple household appliances during a power outage. Like the combination above, this home battery combination comes with a 2-year warranty and is available from 2.88 kWh.

Buy a home battery with backup at Wallbox Discounter

At Wallbox Discounter, you will find both fully automatic backup home batteries and flexible systems with fewer features. All home batteries are shipped free of charge. Do you have questions about these home batteries, their installation, or are you unsure which model is right for your situation? No problem! Our experts are happy to help. Send us an email at [email protected] or call us on 074-7002114.