Is my Solarbank 3 Pro working properly?

The Anker SOLIX Solar Bank 3 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 clarified with a quick look at the Anker app. There, you can check the input power of each individual PV channel in real time – and identify potential errors early on.

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

The Anchor App shows you exactly how many watts are being used at each of the four PV inputs (PV1 to PV4) of your Solar Bank 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: If all modules are aligned in the same direction, the values at the four inputs should be almost identical. A persistent discrepancy—e.g., PV2 and PV4 significantly below PV1 and PV3—may indicate technical or software-related issues.

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 Anchor 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 Solar Bank 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).

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

Several users have noticed that their Solar Bank 3 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. Solar Bank 3 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.

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

You can fix this issue with a simple firmware update via the Anker app. After the update, the Solar Bank 3 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 Anchor App

2. Choose your Solar Bank 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 Solar Bank 3 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 Solar Bank 3 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 anchor guidelines and regular software updates Get the most out of your Solarbank 3 Pro – without any additional costs or hardware replacement.