Anker Solix Solarbank 4 Pro Doubles Power and Capacity

Anker Solix’s fourth generation Solarbank was teased beforehand and appeared today, signaling a notable leap in personal energy storage. At a Berlin event, Anker’s solar brand unveiled the Anker Solix Solarbank 4 E5000 Pro. First things first: if you’re looking to grab the successor to the Anker Solix Solarbank 3 Pro, which started at approx. €1,000, you’ll need to be patient and prepared to invest more than last year. The company promises bigger capacity and clearer power figures to justify the jump, with an emphasis on reliability across both grid-tied and off-grid configurations.

Overview

Currently, you can only register your interest in a future pre-order, and the official release date has not yet been announced. However, the MSRP has already been confirmed at €1,999, which is significantly higher than its predecessor. In return, buyers get substantially more power, improved efficiency, and smarter integration options that hint at a broader ecosystem rather than a single device. This move signals a bold, if expensive, step for early adopters and planners who want better long-term energy management.

Power and Specs

As the ‘E5000’ in the name suggests, the Solarbank 4 Pro offers a capacity of 5 kWh—nearly double the 2,688 Wh found in the Solarbank 3 Pro. For those who need even more, the new BP5000 expansion battery (MSRP €1,399 each) allows for upgrades in 5 kWh increments up to a total of 30 kWh. The modular approach remains friendly to future-proofing, while the introduced expansion line signals a clear path from modest use to larger-scale installations.

Capacity and Expansion

There are also major upgrades in terms of input and output. By default, the Solarbank 4 Pro still feeds a maximum of 800 W into the home (the standard limit for balcony power plants). However, with professional installation via a Wieland plug, users can draw up to 2,500 W in grid-tied mode—more than double the third generation’s output. The off-grid connection also delivers up to 2,500 W. The device retains 4 MPPTs, but these now support a solar input of up to 5,000 W, an increase of 1,400 W over the Solarbank 3 Pro. According to the manufacturer, this allows for the connection of up to 12 solar modules. Additionally, Anker Solix has equipped the Solarbank 4 Pro with a proper display, similar to the one recently seen on the XXL home storage system, the Solarbank Max AC.

AI, Tariffs, and Interfaces

There are also major upgrades in terms of input and output. By default, the Solarbank 4 Pro still feeds a maximum of 800 W into the home (the standard limit for balcony power plants). However, with professional installation via a Wieland plug, users can draw up to 2,500 W in grid-tied mode—more than double the third generation’s output. The off-grid connection also delivers up to 2,500 W. The device retains 4 MPPTs, but these now support a solar input of up to 5,000 W, an increase of 1,400 W over the Solarbank 3 Pro. According to the manufacturer, this allows for the connection of up to 12 solar modules. Additionally, Anker Solix has equipped the Solarbank 4 Pro with a proper display, similar to the one recently seen on the XXL home storage system, the Solarbank Max AC.

Familiar features such as AI-optimized control (in combination with the new Anker Solix Smart Meter Gen 2) and support for dynamic electricity tariffs are also on board. These are joined by Anka, Anker’s proprietary AI voice assistant, and open APIs for integration into Home Assistant and similar platforms.

Promotions and Availability

Anker Solix has now shared its early-bird deals. From May 12 to June 11, 2026, customers can register without obligation for the purchase to secure a 25% discount off the MSRP of the Solarbank 4 E5000 Pro and the BP5000 expansion battery. Additionally, the discount code includes a free three-phase Anker Solix Smart Meter Gen 2. These codes can be redeemed between June 12 and June 21, 2026, when placing an order at the Anker Solix online shop.

Final Thoughts

All told, the Solix 4 Pro line positions Anker Solix as a serious contender for home energy setups that want scalable storage, smarter control, and straightforward expansion. While numbers look imposing on paper, the real-world gains will depend on installation quality, solar conditions, tariffs, and user behavior, yet the direction seems to be toward deeper integration, more capacity, and easier operation for varied households. Anker Solix.