You have invested in high-quality solar modules – but how do you connect them correctly to your Anker SOLIX Solarbank Pro 3?

Whether it's an east-west orientation, limited space on the balcony, or different module types: Many users face technical questions when connecting their PV modules to the Solarbank Pro 3 – and often problems that can easily be avoided with a little background knowledge.

The Anker Solar Bank Pro 3 is considered one of the most powerful Storage solutions for balcony power plants on the market:

• 2,68 kWh usable storage capacity

• Four independent MPP trackers for maximum energy yield

• MC4 compatible inputs for easy installation

But all these advantages can only be exploited if you Connecting the Solarbank Pro 3 properly – without overvoltage, with the correct cabling and in accordance with the technical limits.

In this blog we show you:

• Why connecting your solar panels in series is a common (and expensive) mistake

• How to safely connect in parallel with Y-cables

• Which cable cross-sections are necessary for longer distances

• Which module types are compatible with the Anker Solarbank Pro 3

Find out now how to unlock the full potential of your Anker SOLIX Solar Bank Pro 3 as intelligent photovoltaic storage for your balcony power plant use – safe, efficient and future-proof.

👉New: Anker SOLIX Power Dock

• Connection of up to 4 solar banks

• Max. 4800 W feed-in, storage expandable up to 64,4 kWh

• Supports up to 14,4 kW solar power, direct feed-in into the home grid

• Ideal for high self-consumption such as heat pumps or electric vehicles

• Scalable and future-proof (wallbox integration planned)

With the Power Dock Larger photovoltaic systems can be realized, while the Solar Bank 3 Pro central storage and distribution of solar energy.

Avoid series connection: What to consider when connecting to the Anker Solarbank Pro 3

Many users tend to connect solar modules in series, as they know from traditional rooftop systems. Anker SOLIX Solarbank Pro 3 storage solution is this for security reasons The reason: The maximum open circuit voltage (Voc) per input is only 60 voltTwo 36-cell modules connected in series can easily exceed this value.

An overvoltage can lead to total failure of the Solar Bank Pro 3 lead – and is not covered by the warranty.

The clear recommendation is therefore: Use only the Parallel connection of modules, as stated in the official Installation instructions for the Anker Solar Bank Pro 3 This way you protect your investment and ensure that your Balcony power plant storage solution Sich.

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Parallel connection with Y-cable: How to make optimal use of the inputs of the Solarbank Pro 3

The Anker Solarbank Pro 3 with four MPPT trackers offers the possibility of connecting solar modules flexibly and individually. Each input can be connected to either:

• a solar module directlyOr

• two solar modules in parallel via a Y-cable connected.

This parallel connection is particularly suitable for systems with more than four modulesThe prerequisite is that the modules are electrically compatible – i.e., they have similar Voc values and performance.

💡 Tip: Use only MC4-certified Y-cablesto ensure that your solar modules comply with the Anker SOLIX Solar Bank Pro 3 to connect. For east-west orientation or partial shading, the use of all four trackers is particularly advantageous.

Cabling over long distances – the right MC4 cable for your Solarbank Pro 3

Many users mount their solar modules on the balcony or roof of their house, while the Anker Solar Bank Pro 3 Storage protected in a basement or indoors. In such cases, the voltage drop along the cable route is an important factor.

Use UV and weather-resistant MC4 extension cablesto ensure maximum power yield with minimum power loss. Those with experience with PV technology can also cut their own solar cables to size and crimp MC4 connectors themselves – a popular option for advanced users of the Solar Bank Pro 3.

Common connection errors with the Solarbank Pro 3 – and how to avoid them

So that your balcony power plant with Anker Solarbank Pro 3 storage solution To ensure that it works reliably in the long term, you should avoid these mistakes:

❌ Typical mistakes:

• Series connection of modules → voltage too high

• Mixing panels with very different electrical values

• Using unsuitable, too thin cables

• No Y-cables for parallel connection

• Plug connections not locked correctly

✅ Best Practice:

• Max. two compatible modules per input with MC4 Y-cable

• Check the voltage of each module individually (Voc < 60 V)

• Use of tested solar cables with sufficient cross-section

• Installation according to anchor scheme for the Solar Bank Pro 3

Conclusion: Connect the Anker Solarbank Pro 3 correctly – and get the most out of the sun

The right Wiring of the Solarbank Pro 3 is crucial for their performance and longevity. Whether you are planning a new solar system or want to connect existing modules – with the Anker Solar Bank Pro 3 rely on a efficient, modular and user-friendly storage solution for your balcony power plant.

Note:

• Use only parallel connection

• Strictly adhere to voltage limits

• Correctly dimension Y-cables and MC4 cables

• Check technical data before connection

Sources

• Anker product page for the Solarbank Pro 3

• Anker Blog: Connecting multiple solar panels

• Reddit user experiences with cabling (as of July 2025)