Anker Solarbank: Models, Review & Best Alternatives 2026

In short: Anker Solix offers a storage model for almost every need, from the small Solarbank E1600 to the three-phase Solix X1. This overview shows you all current models, who they are suitable for – and where an alternative like the SunEnergyXT 500 PRO (in the BILD practical test and with a ComputerBild rating of "VERY GOOD") offers a better overall package.

Anker Solarbank Models at a Glance

Anker Solix has significantly expanded its storage portfolio in 2025/2026. These models are currently relevant:

• Anker Solarbank E1600 (Gen 1): the classic with 1.6 kWh – affordable entry, but without an integrated inverter in the traditional sense.
• Anker Solarbank 2 Pro (E1600 Pro): 1.6 kWh with integrated micro-inverter and smart meter connection – popular balcony entry model.
• Anker Solarbank 3 Pro (E2700 Pro): 2.7 kWh, modularly expandable – the golden mean.
• Anker Solarbank 4 Pro (E5000): 5 kWh, 4 MPPT, up to 5,000 W PV input – the 5-kWh upper class.
• Anker Solix X1: three-phase home storage system (from 5 kW/5 kWh) – for complete self-sufficiency, premium price.

Anker Solarbank Comparison 2026 (with SunEnergyXT Alternative)

Prices approx., as of June 2026, according to publicly available dealer information; no guarantee. The respective product page is authoritative.

Which Anker model suits whom?

Do you have a balcony and want to start small? Then the Anker Solarbank 2 Pro is sufficient. Do you want 5 kWh and many modules? Then the Solarbank 4 Pro is strong – but a direct comparison with the cheaper SunEnergyXT 500 PRO is worthwhile here. Do you want to supply the whole apartment/house? Then you're thinking in the Solix X1 league – or about the three-phase expandable 500 series.

The Best Alternative to Anker Solarbank 2026

In the 5-kWh class, the SunEnergyXT 500 PRO is the obvious alternative to the Anker Solarbank 4 Pro:

• Cheaper: €1,349 instead of approx. €1,499 – with a comparable 5-kWh basis.
• Independently tested: "VERY GOOD" in the ComputerBild practical test; in the BILD practical test with calmer zero-feed-in and earlier PV start than the Anker Solarbank 4 Pro.
• Open software: local Home Assistant API – your data stays with you.
• Scalable: three-phase up to approx. 270 kWh via the SunEnergyXT PowerBOX.
• Immediately available.

You can read the detailed comparison here: Anker Solarbank 4 Pro vs. SunEnergyXT 500 PRO and in the test of the best 5-kWh storage systems 2026. For entry with less power, there is also the SunEnergyXT 500 (800 W) and the compact BK215 PLUS (2.15 kWh).

Important: Operation with more than 800 W

Larger Anker Solarbank models and the SunEnergyXT 500 PRO provide more than 800 W of output power. This no longer falls under the simplified 800 W balcony power plant regulation (plug-in solar): the feed-in must then be limited to 800 W, e.g., by zero-feed-in, or the system must be registered as a larger PV system. Our MaStR step-by-step guide explains how registration in the market master data register generally works.

Frequently Asked Questions (FAQ)

Which Anker Solarbank model is the best?
It depends on the need: 2 Pro for balcony entry, 4 Pro for 5 kWh with many modules, Solix X1 for the whole house.

Is there a cheaper alternative to the Anker Solarbank 4 Pro?
Yes – the SunEnergyXT 500 PRO offers 5 kWh for €1,349 (immediately available) and performed better in the BILD practical test for zero-feed-in and low-light start.

Can Anker and SunEnergyXT storage systems be combined?
No, they are independent systems from different manufacturers; expansion is always done with manufacturer-specific additional batteries.

Status: June 2026. Prices and specifications according to publicly available information, subject to change. Brand and product names belong to their respective manufacturers. Editorial overview, no legal advice.