Best selling Electricity storage

Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.

1. EcoFlow Stream Ultra CH-Version

The EcoFlow Stream Ultra is a compact, all-in-one solar-hybrid system that combines a 1.92 kWh battery and a built-in micro-inverter (1200 W continuous/2300 W peak) in a single, IP65-rated enclosure, enabling DIY installation without separate inverters. Its four MPPT inputs accept up to 2000 W of PV power (4 x 500 W) plus an additional 800 W via the inverter, allowing the system to generate up to 2218 kWh annually, which covers more than 70 percent of a typical home’s needs, and enabling low-temperature charging down to -20 degrees Celsius. Multiple units can be linked in series or parallel (up to 11.52 kWh storage and 12 kW PV), with Wi-Fi/Bluetooth for seamless setup and expansion via the EcoFlow app. Intelligent, AI-driven load management and AI-TOU time-of-use tariff optimization automatically allocate solar power and plan charging cycles to minimize grid costs, while real-time monitoring of generation, storage, and consumption ensures efficient, scalable, and sustainable home energy. 

2. Anker Solix Solarbank 2 extension battery

The stackable additional battery BP1600 for the two balcony power plant storage systems Anker Solix Solarbank 2 Plus and Pro allows for a modular expansion of the system capacity up to 9600 Wh. It features a self-heating function and connects to the base unit in a stack via a simple plug-in system. 

3. Anker Solix Solarbank 2 E 1600 Pro

The Anker Solix Solarbank 2 E1600 Pro offers you a first-class solution for expanding your balcony power plant capacity. With this powerful battery, you can efficiently store the solar power generated and use it exactly when you need it. The result is a self-sufficient energy supply and a significant reduction in your energy costs. 

4. EcoFlow Stream AC Pro CH-Version

The EcoFlow Stream AC Pro is a compact AC-coupled storage extension for existing microinverter solar systems. It features a 1.92 kWh LFP battery rated for 6,000 cycles up to 70 per cent capacity, combined with AC coupling technology in a single IP65-certified housing. Simply plug it into a standard wall socket to store excess solar energy, then draw a continuous 1200 W (with automatic boost to 2300 W) for high-powered devices or up to 600 W as a grid-tied backup source. Its 1050 W/10 A AC input allows for fast charging, and its modular design allows you to connect up to six units for a total of 11.52 kWh of storage and 6,300 W input, so your system can grow with your needs. Built-in Wi-Fi and Bluetooth allow you to monitor and control all modules via the EcoFlow app, which offers AI-driven optimisation of time-based tariffs and hyperlocal charging.time-based tariffs and hyperlocal weather and price forecasts to charge at the lowest tariffs, maximise self-consumption and minimise grid costs, all in a silent, weatherproof enclosure that operates below 30 dB. 

5. Hoymiles Storage system

Solar storage Hoymiles MS-A2 Pre-order - First worldwide AC-coupled storage. The Hoymiles MS-A2 micro storage system is the next step in innovative solar storage for your balcony power plant. Maximise your solar energy usage with Hoymiles' high-quality solar storage for balcony power plants and optimise your existing balcony power plant solar system with the world's first AC-coupled storage solution. Installed in just 7 seconds, the Hoymiles solar storage unit is connected to the Schuko plug of your existing micro inverter. From there, you plug the Hoymiles MS-A2 solar storage system back into the same or any other socket using the plug & play cable supplied. Simply plug it in and store green electricity. The time-consuming interconnection between solar modules, storage system and inverter is a thing of the past. Store your surplus solar power and use it when needed to reduce your electricity costs and increase your independence. The Hoymiles MS-A2 solar storage system is easy to install and ideal for anyone who wants to use sustainable energy. 

6. EcoFlow Stream Pro CH-Version

The EcoFlow Stream Pro is an all-in-one solar-hybrid solution that integrates a 1.92 kWh lithium-iron-phosphate battery and a micro-inverter delivering 1200 W continuous (2300 W peak) AC power in a weather-proof (IP65), nearly silent (< 30 dB) enclosure. Its modular, plug-and-play design allows for DIY installation and, with three MPPT channels supporting up to 1500 W of panels plus 800 W via the inverter, dramatically boosts self-consumption. Multiple units can be linked via Wi-Fi or Bluetooth, scaling capacity to 11.52 kWh and PV input to 12 kW, while the EcoFlow app’s AI-driven management optimizes charging cycles around dynamic tariffs and works with over 99 percent of solar panels, making the Stream Pro a smart, expandable core for sustainable, off-grid home energy. 

7. Zendure SolarFlow AB1000S Erweiterungsbatterie

The SolarFlow AB1000S Extension Battery 960Wh Add-On LiFePO4 is an advanced energy storage solution for home applications. This battery stores surplus energy generated from balcony power plants and enables the use of solar energy even at night or when there is little sunshine. It is compatible with the entire SolarFlow range and offers a variety of protection features and technologies that ensure safety and longevity. 

8. Anker Solix Solarbank 2 E1600 Plus

The Anker Solix Solarbank 2 E1600 Plus offers a capacity of 1600 Wh and a power output of 800 W, making it ideal for your daily energy needs. With durable LiFePO4 batteries that provide up to 6000 charge cycles and a lifespan of 15 years, and an IP65 protection rating, it is perfectly suited for outdoor use. The simple plug-and-play installation requires no electrician and takes only two hours. Modularly expandable up to 9.6 kWh and equipped with a 1000 W emergency outlet, the solar bank ensures a reliable power supply, even during power outages. 

9. Zendure LiFePO4 extension battery

Zendure AB2000 Expansion Battery 1920Wh Add-On LiFePO4

The AB2000 from Zendure is an additional battery that uses LiFePO4 technology to store excess energy generated
by a balcony power plant. Thanks to its SolarFlow function, the use of solar energy through a mini photovoltaic system is no longer limited to daytime hours. The generated energy is first used to power electrical devices. Any surplus electricity is stored in the batteries, allowing it to be used in the evening or during low sunlight conditions. The SolarFlow AB2000 batteries require additional components for use, including the Smart PV Hub (sold separately), at least one solar panel, and a micro-inverter.

About the AB2000 Add-On Battery:
- Total capacity of 7,680 Wh possible (modular expansion)
- Compatible with the Zendure AB1000 add-on battery
- IP65 waterproof protection
- Monitoring and control via app possible
- 10-year manufacturer warranty
- Easy integration

How does SolarFlow work? During the day, the PV Hub directs the energy generated by the PV modules to the micro-inverter, which converts it into alternating current to power household appliances. The surplus energy is intelligently stored in the batteries for use at night. This can lead to potential savings of up to 32% on your annual electricity bill. The intelligent control ensures efficient use of the stored energy.
 

10. Marstek ESS Saturn B

The ESS Saturn B energy storage system from Marstek is an innovative solution for storing solar energy that has been specially developed for use in conjunction with balcony power stations. With an impressive battery capacity of 2240 Wh, this home storage system enables efficient utilisation of solar power to meet household energy needs. Installation is user-friendly and can be carried out using the DIY method, making it a practical choice for environmentally conscious consumers. The ESS Saturn B is compatible with various brands of micro-inverters and offers a maximum discharge power of 1 kW, ensuring a reliable energy supply. The device is also IP65 waterproof, providing additional protection against environmental influences. 

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