Solar panel producing less power? Check and update Solarbank 3 Pro

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Your Anker Solarbank 3 Pro delivers significantly less power than expected? This article explains how to use the app to check PV performance, what is considered "normal" – and why a simple firmware update often completely solves the problem.

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• updated: July 18, 2026
• Suitable for: Readers who are looking for information on “Solarbank 3 Pro: How to fix insufficient solar power” or are preparing a decision.
• Limits: Availability, pricing, firmware, compatibility, and regional specifications are subject to change.
• Database: Manufacturer specifications and the technical information mentioned in the article. Check the current manufacturer's documentation before purchasing and installing.

Is my Solarbank 3 Pro working properly?

The Anker SOLIX Anker SOLIX Solarbank 3 E2700 Pro Storage 2,68 kWh Pro is a modular storage solution with up to four PV inputs. It makes it possible to efficiently store the solar power generated during the day and use it in the household. But what if you feel that your Solarbank 3 Pro delivers too little powerOr if individual PV inputs seem weaker than others?

Such doubts can be dispelled by a glance at the Anker-App to clarify. There you can check the input power of each individual PV channel in real time – and detect possible errors early on.

👉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 Anker SOLIX Power Dock for Anker Multisystem Larger photovoltaic systems can be realized, while the Solarbank 3 Pro central storage and distribution of solar energy.

Check the PV performance of the Solarbank 3 Pro in the app

The AnkerApp shows you exactly how many watts are being used at each of the four PV inputs (PV1 to PV4) of your Solarbank 3 Pro This overview will help you:

• determine whether all solar modules are supplying power

• Detect performance losses of individual channels

• Quickly locate irregularities

The live display is particularly helpful in full sunlight: when all Modules If the inputs are aligned in the same direction, the values ​​at the four inputs should be approximately identical. A persistent difference – e.g., PV2 and PV4 significantly lower than PV1 and PV3 – may indicate technical or software-related causes.

How much power should one module on the Solarbank 3 Pro generate?

To assess whether your system is really producing too little electricity, it is helpful to look at official guidelines. According to the Anker Blog Depending on the weather, a 410 W PV module produces the following daily production:

• 100-200 Wh under cloudy skies

• 350–500 Wh under average conditions

• up to 800 Wh with optimal south orientation and summer sun

If your Solarbank 3 Pro For example, if the app only shows 150 W per module on a sunny day, even though other channels are at 300–400 W, it is worth checking further. Especially if you regular differences for the same inputs (e.g. PV2, PV4).

Typical problem with the Solarbank 3 Pro: PV2 and PV4 deliver less power

Several users have noticed that their Anker SOLIX Solarbank 3 E2700 Pro Storage 2,68 kWh Pro the inputs PV2 and PV4 permanently show less power than PV1 and PV3 – even if:

• all modules are identical and correctly connected

• the orientation is optimal (e.g. south, 30° inclination)

• there is no shading

• the modules were swapped between the inputs

Typical performance value in the app:

• PV1: 187 W

• PV2: 155 W

• PV3: 185 W

• PV4: 162 W

In such cases, the cause is in most cases not in the hardware, but can be found in the software.

Cause: Firmware behavior of the Solarbank 3 Pro

In older firmware versions, the PV input power was prioritized differently internally. Anker SOLIX Solarbank 3 E2700 Pro Storage 2,68 kWh Pro partially favored PV1 and PV3, resulting in less reading of PV2 and PV4. This resulted in an uneven power distribution, which is clearly visible in the app.

Suitable system at Mini Power

The product selection was compared with the currently published Mini Power range.

The good news: This behavior is known – and can already be corrected by a firmware update.

Solution: Update the firmware for the Solarbank 3 Pro

With a simple firmware update via the AnkerThe app can fix the problem. After the update, the Anker SOLIX Solarbank 3 E2700 Pro Storage 2,68 kWh Pro all four inputs are equal – the input power is distributed evenly and your balcony power plant is working fully efficiently again.

This is how the update works:

1. Open the AnkerApp

2. Choose your Solarbank 3 Pro

3. Go to Settings > Update Firmware

4. Follow the on-screen instructions and stay online

After the update you should be able to observe in the app that PV2 and PV4 deliver significantly better values – the system is now optimally balanced.

Tips for optimizing performance with the Solarbank 3 Pro

In addition to the software, physical factors also play a role. This is how you get the most out of your Anker SOLIX Solarbank 3 E2700 Pro Storage 2,68 kWh Pro:

• Align the modules to the south, with an ideal inclination (approx. 30–35°)

• Make sure there is absolutely no shading – even partial shading has a strong impact

• Check the values in the app regularly, especially when the sun is shining

• Clean the modules occasionally

• Perform firmware and app updates regularly

Conclusion: Check Solarbank 3 Pro, perform an update, increase power yield

If your Anker SOLIX Solarbank 3 E2700 Pro Storage 2,68 kWh Pro shows unusually low input power – especially with PV2 and PV4 – you should definitely check the firmware version. In many cases, a simple update for significantly better and more consistent PV values.

With the combination of App monitoring, official Anker-Guidelines and regular software updates Get the most out of your Solarbank 3 Pro – without any additional costs or hardware replacement.

fitting products

• Anker SOLIX Solarbank 3 E2700 Pro Storage 2,68 kWh