Best Pv Akku 2026

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Last Updated - 03.02.2026

Best Choice

01

MARSTEK

Marstek Venus E NewGen 5120 Wh - AC-Coupled Solar Storage New Generation, Plug & Play, 2500 W Charge/Discharge Power, IP65, Emergency Power, App Controlled, Expandable to 20.48 kWh, 10 Year Warranty

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Real plug and play installation - ready to use even without an electrician. Simply connect to a normal household socket - done. Includes wall mount and roller set for stationary or mobile use, e.g. when camping or in the garage.
Modular expandable to up to 20.48 kWh – with the need to grow planning security for tomorrow: thanks to expansion modules, the memory grows with your energy needs, e.g. when installing additional PV modules, electric cars or heat pumps.
Long-lasting 5.12 kWh LiFePO4 battery - for maximum safety and service life. Use one of the safest cell technologies on the market with over 6000 charging cycles. Ideal for everyday use in the household to store solar power efficiently and reduce electricity costs in the long term. Even in the event of a mains failure
Intelligent app control - full transparency and control Keep track of charging status, energy consumption, mains coverage and PV usage at all times - even on the go. Supports dynamic electricity rates for maximum savings.
IP65 certified housing - suitable for indoor and protected outdoor use. Resistant to dust, splashes of water and moisture. This makes the device suitable for cellars, utility rooms, carports or garden shed – without additional protective measures.
Emergency power supply up to 2500 W - safety even in the event of a power failure. The memory automatically detects mains failures and switches important consumers seamlessly to battery operation. Ideal for securing refrigerator, Internet, light or medical equipment.
AC-coupled solution - perfect retrofit without technical modifications. The storage can be flexibly connected to existing PV systems or balcony power plants - regardless of the manufacturer. No additional inverters needed, no need to feed into the mains.

1.369,72 €
02

MARSTEK

Marstek Venus E NewGen 5120 Wh - AC-Coupled Solar Storage New Generation, Plug & Play, 2500 W Charge/Discharge Power, IP65, Emergency Power, App Controlled, Expandable to 20.48 kWh, 10 Year Warranty

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Real plug and play installation - ready to use even without an electrician. Simply connect to a normal household socket - done. Includes wall mount and roller set for stationary or mobile use, e.g. when camping or in the garage.
Modular expandable to up to 20.48 kWh – with the need to grow planning security for tomorrow: thanks to expansion modules, the memory grows with your energy needs, e.g. when installing additional PV modules, electric cars or heat pumps.
Long-lasting 5.12 kWh LiFePO4 battery - for maximum safety and service life. Use one of the safest cell technologies on the market with over 6000 charging cycles. Ideal for everyday use in the household to store solar power efficiently and reduce electricity costs in the long term. Even in the event of a mains failure
Intelligent app control - full transparency and control Keep track of charging status, energy consumption, mains coverage and PV usage at all times - even on the go. Supports dynamic electricity rates for maximum savings.
IP65 certified housing - suitable for indoor and protected outdoor use. Resistant to dust, splashes of water and moisture. This makes the device suitable for cellars, utility rooms, carports or garden shed – without additional protective measures.
Emergency power supply up to 2500 W - safety even in the event of a power failure. The memory automatically detects mains failures and switches important consumers seamlessly to battery operation. Ideal for securing refrigerator, Internet, light or medical equipment.
AC-coupled solution - perfect retrofit without technical modifications. The storage can be flexibly connected to existing PV systems or balcony power plants - regardless of the manufacturer. No additional inverters needed, no need to feed into the mains.

1.265,00 €
03

Marstek

5.12kW Venus-E 3.0 New Vesion Balcony Power Plant Memory 0% VAT, Smaller. Lighter. More Efficient. Annual Savings of €1,310. MARSTEK AC-Coupled Energy Storage System All-in-One Solar Storage

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【0% VAT】 The price is already with 0% VAT. designated. The price is only valid for private customers who meet the requirements for VAT-free delivery according to § 12 para. 3 UstG. For business customers, an additional 19% VAT will be charged. due and added to the purchase price.
Zero feed into the grid thanks to the smart meter: By integrating a real-time smart meter and adaptive control, Venus E Gen 3.0 ensures that no excess solar energy is fed into the grid. Ideal for regions with feed-in restrictions or limited feed-in tariffs.
Intelligent energy starts with AI and dynamic rates: the AI mode of the Venus E Gen 3.0 automatically schedules your charging times based on the real-time power prices of your region from platforms such as North Pool, Tibber and Octopus Energy. It learns your energy consumption patterns, analyses battery levels and weather forecasts, and continuously adjusts charging time and quantity — helping you reduce costs and maximize savings without any effort.
Extend up to 15.36 kWh: Single-phase backup system. Up to 3 devices parallel for each phase. Max. output 2.5 x 3 = 7.5 kW, max. capacity 5.12 kWh x 3 = 15.36 kwh. Compatible with any existing PV system upgrade to your home microgrid system. Suitable for summer cottages, yachts, motorhomes, etc.
Annual savings of €1,310: Venus E Gen 3.0 helps you save up to €1,310 per year through AI-powered control and real-time electricity prices. The breakeven is reached within 12 months. We offer you the option of installment payment, so you can cover each payment with the savings of your electricity bill and don't have to worry. Equipped with advanced LFP battery technology, Venus E Gen 3.0 offers over 6,000 deep cycles at 80% capacity retention - for up to 15 years of reliable use. Your long-term investment is backed by a 10-year warranty.
AC-coupled energy storage system: MARSTEK 5.12 kW Venus-E 3.0 updated version, worldwide premiere memory, 5 seconds plug & play installation. 38.5% less volume compared to Venus 2.0. The Venus E Gen 3.0 is our most elegant design yet - with slimmer dimensions, softer edges and 38.5% less volume than the previous generation, it blends seamlessly into any living space. 2500W input/output power, charging and discharging with just one cable. PV system compatible, solar storage and use. The switching time within 20 ms can be used as an emergency power supply.

1.093,49 €
04

Mentech

Updated Balcony Power Station with Memory B2500, Marstek 2240 Wh LiFePO4 Battery 6000 Charging Cycles, 1600 W Max. 1600 W PV Input and 800 W Output, Expandable to 8960 Wh, IP65 Waterproof and

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

You will receive: Marstek B2500 balcony power station with memory x 1, MC4 charging cable x 2, instruction manual x 1 (English language not guaranteed).
Save on your electricity bill: Starting from a capacity of 8.96 kWh per day and about 2688 kWh per year. -
Higher quality: Reliable energy for up to 6,000 charging cycles with IP65 dust and splash proof, easy to use on balconies, roofs, garages, patios or gardens. Plug and play, connect, charge, remove and move in seconds without additional installation costs. Nonstop performance.
App monitoring: Step into the future of energy management with our intelligent app. With real-time monitoring, it keeps you informed of your energy consumption and production patterns. In addition, the app also intelligently calculates your energy savings and gives you a clear picture of your benefits.
99% Micro Inverter Compatible: Experience unsurpassed compatibility with all MC4 connectors, giving you the freedom to combine with a variety of solar panels and micro inverters on the market. Whether you are integrating an existing solar system or starting from scratch, the B2500 will fit effortlessly into your setup. The B2500 is suitable for both solar newcomers and experienced enthusiasts and offers a smooth 15-minute DIY solar system installation.
8.96 Wh expandable capacity: Marstek B2500 thanks to the support of 4 expansion batteries, which can be used by simple stacking, up to 8.96 Wh, you can provide plenty of storage space for your balcony power plant. You can adjust the capacity according to your solar power needs.
- - 3 UstG. -

339,99 €
Value for Money

05

Anker

Anker SOLIX BP1600, Balcony Power Station with Memory, 1600 Wh Battery for Solar Bank 2 Series, 6000 Charging Cycles, Expandable to 9600 Wh, IP65 Waterproof and Dustproof, Modular Design

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42% Off
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Protected in all weather conditions: this extension battery is made for temperatures from -20 °C to 55 °C. It also has an IP65 seal to repel water and dust.
Long lasting life: reliable energy for up to 6,000 charging cycles. Nonstop performance, protected by a 10-year manufacturer's warranty.
Box contents: Anker Solix BP1600 extension battery, 2 x mounting brackets, 2 x combination screws (M5 x 10 mm), safety instructions.
Adjustable capacity: simply add up to five expansion batteries for balcony power plant with storage in the solar bank 2 series. Simply stack and go.
0% VAT: The price is already shown with 0% VAT. The price is only valid for private customers who meet the requirements for VAT-free delivery according to § 12 para. 3 UstG. For business customers, an additional VAT of 19% will be charged and added to the purchase price.

406,99 € 699,00 €(42% Off off)
06

XORO SOLAR

XORO SOLAR SPS 2155 Solar Storage - Balcony Power Station Storage with 2 kWh LiFePO4 Battery, Dual MPPT 2 x 800 W Input, 800 W Output for Indoor and Outdoor Use IP65, Plug & Play

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Durable and durable】With a service life of up to 15 years and a 5-year warranty, the SPS 2155 is a durable and reliable solution for your energy storage. . Rely on quality and sustainability for your energy transition
【Natural and environmental protection】With the SPS 2155, you rely on green energy and make an active contribution to environmental protection. By using self-generated solar power, you contribute to the reduction of fossil fuels and CO2 emissions.
【Flexible setup】 and effective and effective protection: the power output of the SPS 2155 can be flexibly configured via the app or controlled with up to 5 separately available smart plugs SPP 16A2. An integrated battery management system (BMS) continuously monitors all critical parameters. Thanks to the easy installation, you have your system ready to use quickly and can monitor it in real time
Safe and reliable: the SPS 2155 has durable LiFePO4 battery cells (lithium iron phosphate), which are known for their high safety and long service life. These battery cells provide protection against overheating, overcharging and short circuiting. With a storage capacity of 2016 Wh (2 kWh), you can efficiently store your solar power and use it reliably at any time
Plug and play – Easy to install in the following ways: the XORO SOLAR SPS 2155 is the perfect extension for your balcony solar system. With the included cable set, you can quickly and easily connect the solar power storage between the existing solar modules and the inverter. In just a few minutes, the installation is complete.
For inside and outside - Thanks to protection class IP65, the SPS 2155 is perfect for installation both indoors and outdoors. Whether on the balcony, in the garden or in the cellar – the storage is protected against dust and splashes of water and therefore extremely robust

325,72 €
07

Mentech

Updated Balcony Power Station with Memory B2500, Marstek 2240 Wh LiFePO4 Battery 6000 Charging Cycles, 1600 W Max. 1600 W PV Input and 800 W Output, Expandable to 8960 Wh, IP65 Waterproof and

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

You will receive: Marstek B2500 balcony power station with memory x 1, MC4 charging cable x 2, instruction manual x 1 (English language not guaranteed).
Save on your electricity bill: Starting from a capacity of 8.96 kWh per day and about 2688 kWh per year. -
Higher quality: Reliable energy for up to 6,000 charging cycles with IP65 dust and splash proof, easy to use on balconies, roofs, garages, patios or gardens. Plug and play, connect, charge, remove and move in seconds without additional installation costs. Nonstop performance.
App monitoring: Step into the future of energy management with our intelligent app. With real-time monitoring, it keeps you informed of your energy consumption and production patterns. In addition, the app also intelligently calculates your energy savings and gives you a clear picture of your benefits.
99% Micro Inverter Compatible: Experience unsurpassed compatibility with all MC4 connectors, giving you the freedom to combine with a variety of solar panels and micro inverters on the market. Whether you are integrating an existing solar system or starting from scratch, the B2500 will fit effortlessly into your setup. The B2500 is suitable for both solar newcomers and experienced enthusiasts and offers a smooth 15-minute DIY solar system installation.
8.96 Wh expandable capacity: Marstek B2500 thanks to the support of 4 expansion batteries, which can be used by simple stacking, up to 8.96 Wh, you can provide plenty of storage space for your balcony power plant. You can adjust the capacity according to your solar power needs.
- - 3 UstG. -

339,99 €
08

VALE

Marstek B2500 Memory 2240Wh for Balcony Power Plants, LiFePO4 Battery 6000 Charging Cycles, Expandable, Easy Installation, IP65 Waterproof & Dustproof (B2500D)

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

You will receive Marstek B2500 balcony power plant with memory x1, MC4 connection cable x4, installation tool x1, instruction manual x1.
The price is already with 0% VAT. designated. The price is only for sale to private customers. For business customers, an additional 19% VAT will be charged. due and added to the purchase price
Save your electricity bill with a capacity of 6720 Wh, a daily generation of 6 kWh and approx. 2000 kWh per year, save approx. 1200 Euro per year with a tariff of approx. 0.6 Euro per kWh. With a capacity of 2240 Wh, the savings are about 400 euros per year.
Higher quality - Reliable energy for up to 6,000 charging cycles with IP65 dust and splash proof, easy to use on balconies, roofs, garages, patios or gardens. Plug and play, connect, charge, remove and move in seconds without additional installation costs. Nonstop performance, protected by a 10-year manufacturer's warranty.
App Monitoring - Go into the future of energy management with our smart app. With real-time monitoring, it keeps you informed of your energy consumption and production patterns. In addition, the app intelligently calculates your energy savings and gives you a clear picture of your benefits.
99% MICRO INVERTER COMPATIBLE - Experience unmatched compatibility with all MC4 connectors giving you the freedom to combine with a variety of solar panels and micro inverters on the market. Whether you are integrating an existing solar system or starting from scratch, the B2500 will fit effortlessly into your setup. The B2500 is suitable for both solar newcomers and experienced enthusiasts and offers a smooth 15-minute self-DIY solar system installation.
6720Wh expandable capacity Marstek B2500 by supporting 2 expansion batteries, which can be used by simple stacking, up to 6720Wh, you can provide ample storage space for your balcony power plant. You can adjust the capacity according to your solar power needs.

348,81 €
09

ZINNZGREEN

Marstek Jupiter C Plus Balcony Power Plant with Memory & Inverter, 0% VAT, 2.56 kWh LFP Battery, App Control, 4 MPPT 2.4 kW PV Input Power/800 W On-Grid Output, IP65, Plug & Play, 6000 Charging Cycles

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【0% Vat】 The price is already with 0% VAT. designated. The price is only valid for private customers who meet the requirements for VAT-free delivery according to § 12 para. 3 UstG. For business customers, an additional 19% VAT will be charged. due and added to the purchase price.
Powerful storage for balcony power plant: all-in-one 2.56 kWh balcony power plant storage with solar inverter. The Jupiter C Plus solar storage unit supports a solar power supply of up to 2400 W with 4 independent MPPT, which ensure fast charging. With an MPPT efficiency of up to 99.8%, it delivers excellent energy conversion performance.
Package includes: Marstek Jupiter C Plus × 1, AC cable ×1, warranty card ×1, cover ×1, tool ×1, feet × 4. Each battery is sent as a separate package, so your order can be divided into multiple packages.
Intelligent app monitoring: Step into the future of energy management with our intelligent Marstek app. Thanks to the real-time monitoring, it keeps you informed about the energy consumption of your solar balcony power plant and your production patterns. In addition, the app intelligently calculates your energy savings and gives you a clear picture of your benefits. Bluetooth, Wi-Fi and Ethernet support.
Expand up to 10.24 kWh: Marstek Jupiter C Plus balcony power plant with memory and 800 W micro inverter, based on a capacity of 10.24 kWh per day/3737.6 kWh per year, save up to 1018 € annually. Full payback is possible in less than 2 years. Easy to use on balconies, roofs, garages, patios or in gardens.
15 years of performance: Marstek power storage for balcony power plant with automotive LFP cells, the Jupiter C Plus solar balcony power station offers 6000+ charging cycles with 80% capacity retention over 15+ years. Backed by a 10-year warranty and continuous support for long-lasting, safe and efficient performance. IP65 protection, built to last. Fully protected against dust and water for reliable operation in any environment. Wide temperature range from -20°C to 60°C. Works reliably even in extreme temperatures and stable all year round.

469,00 €
10

Powerness

Growatt NOAH 2000 Balcony Power Station with 1800 W PV Input Power IP66 for Balcony Power Plant (NOAH 2000 x 1)

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Why choose Powerness: Powerness specialises in the expansion of renewable energies. - - -
The installation code is: ECVBR6.
Superior water protection IP66: The NOAH 2000 has IP66 certification for superior water protection and is therefore perfect for outdoor use. This high degree of water resistance ensures reliable performance and durability, even in extreme weather conditions.
Expandable capacity thanks to easy stacking: The NOAH 2000 offers expandable capacity by simply stacking without the need for complex connections and installations. You can stack up to four units for a maximum capacity of 8192 Wh. This user-friendly design allows you to effortlessly customise your energy storage to meet growing demands.
2048 Wh balcony power station memory: With an impressive capacity of 2048 Wh, the NOAH 2000 offers exceptional energy storage at excellent value for money. This high capacity ensures that you have enough energy available to meet your needs and makes it a wise investment for your energy systems.
1800 W PV input power: AH 2000 provides scalable solar energy input power, so you can easily stack the capacity. Each NOAH unit has two MPPT inputs and supports 1800 W solar energy input. By stacking up to four units, you can achieve a total of eight MPPT inputs and 7200 W solar energy input. This flexibility allows you to install the number of solar panels based on your needs and available space, ensuring optimal use of solar energy.
0% VAT for private customers with a delivery address in Germany: The price includes 0% VAT (no VAT). Individuals from Germany receive tax relief when buying balcony power plants and photovoltaic systems as of 1 January 2023. The price only applies to private customers who meet the requirements for VAT-free delivery as per § 12 para. 3 UstG. For business customers, an additional 19% VAT will be added to the purchase price.

399,00 €