2 kilowatt-hours have never been this light: Anker Solix S2000 power station review
Weight of a 1-kWh power station.
The Anker Solix S2000 weighs barely more than a 1 kWh power station but offers twice the capacity at 2 kWh. Our review reveals what other strengths the solar generator offers and what compromises are required.Marcus Schwarten (translated by Marcus Schwarten (translation supported by Deepl)) Published 🇩🇪
Anker Solix S2000 review verdict: 2-kWh power station for use on the go
Just over 16 kg is extremely light for a power station with a 2 kWh capacity. The Anker Solix S2000 is also ultra-compact in terms of dimensions, especially its footprint. This makes the solar generator the perfect power supply for camping and other outdoor activities.
However, this major advantage does not come without limitations. The 1,500 W AC output is not particularly generous, but is sufficient for many mobile use cases. Buyers also have to do without an integrated LED light and a port or two. With four power outlets and three USB ports, however, the most important connections are available.
In practice, a lot of energy can be drawn from the Anker Solix S2000, resulting in longer runtime. When charging, however, it is not only slower but also consumes slightly more energy from the AC mains than some other 2-kWh power stations.
Pros
Cons
Price and availability
In the US, the recommended retail price is $999. In Germany, the recommended retail price for the Anker Solix S2000 is 1,199 euros. However, it is generally already available for significantly less, for example directly from the manufacturer.
Important note: For the test, we used the European version of the Anker Solix S2000 (230 V).
With the Anker Solix C2000 Gen 2 (approx. €950 at Amazon), Anker Solix launched a power station with a 2 kWh capacity weighing just 18.9 kg around a year ago. Now the company has reduced that weight by more than another 2.5 kg. At IFA 2026, the Anker Solix S2000 also arrived in Europe, having already launched in the US a few months earlier.
According to the manufacturer, the Anker Solix S2000 is the most compact 2 kWh power station available. We can agree with that - at least, we are not aware of a more compact and lighter model in this class. Our Anker Solix S2000 review reveals the compromises that come with its low weight.
Anker Solix S2000 Datasheet
| Capacity | 2,000 Wh |
| expandable | no |
| Continuous/peak power AC | 1,500 W (3,000 W) |
| Outputs | 4xAC, 2xUSB-C, 1xUSB-A |
| AC charging power | 1,150 W (1,500 W) |
| DC charging power (solar) | 400 W |
| Inputs | 1xAC, 1xXT60i |
| Light | no |
| App | yes |
| Weight | 16.2 kg |
| Dimensions | 20.8 × 28.2 × 32.3 cm |
| MSRP | $999 |
Features: lightweight 2-kWh power station weighing 16.2 kg
Let's start with the most striking features of the Anker Solix S2000: size and weight. Measuring 20.8 × 28.2 × 32.3 cm in width, depth, and height, the power station is extremely compact for a model with a 2,000 Wh capacity, making it even more manageable than the Anker Solix C2000 Gen 2.
The difference is even more extreme when it comes to weight. At just 16.2 kg, the Anker Solix S2000 is the lightest 2-kWh power station we have come across so far. It weighs another 2.7 kg less than the C2000 Gen2. By comparison, the Oscal PowerMax 1800 SE (approx. €370 on Amazon), which we tested only recently, weighs just over 1 kg less than the S2000 but offers half the battery capacity. Anker Solix uses the usual LFP cells here, which are rated for a lifespan of 6,000 charge cycles before dropping to 80 percent capacity.
Compactness and lightness naturally entail certain compromises. For example, the AC output of 1,500 W (short-term peak output 3,000 W, bypass mode 2,300 W) is relatively modest, making it significantly lower than that of many other 2-kWh power stations.
There are no compromises when it comes to the number of AC outlets, with four in total—even if their placement, with two at the front and two at the rear, is somewhat unusual. The AC input is also located at the rear, supplying the battery with a similarly modest 1,150 W. Anyone who finds that too slow can activate UltraFast mode with 1,500 W via the app.
In addition to an XT60i input, which allows the power station to be charged at up to 400 W via solar panel(s), an alternator and the like, there are also other ports at the front. However, the selection is limited to two USB-C ports (1x 100 W, 1x 15 W) and one USB-A port (12 W). Buyers of the Anker Solix S2000 will have to do without any additional DC outputs. The same applies to battery expansion and an LED light, but not to a display. Only an AC charging cable is included.
App & controls: Various options on your smartphone
Let's start with the controls on the device, which are kept very simple. Apart from the power button at the top right next to the USB ports, there is only one other button. It is located to the left of the USB ports and is used to switch the AC outlets, and thus the 230 V inverter, on and off. Ideally, this should only be switched on when using 230 V power—although forgetting to switch it off is not quite as significant an issue with the Anker Solix S2000, as we explain further below.
The large display shows not only the current battery level in the usual way, but also the current energy flows and the corresponding remaining runtime. Alternatively, this information can also be viewed via the Anker app, which is available for iOS and Android. Establishing the connection worked without any problems in our test. The power station supports both Bluetooth and Wi-Fi, so it can also be controlled from a great distance if a Wi-Fi network is available.
The app also offers a range of settings. In addition to various operating modes, including emergency and fast charging schedules, faster charging (1,500 W) can be enabled here, among other things. However, this comes at the expense of longevity. At the standard charging speed, the solar generator is barely audible at around 35 dB. Even under output load, the portable power station generally remains pleasantly quiet.
Further options are also available in the app's menu. For example, the device, AC output and screen can be set to switch off automatically after an adjustable period of inactivity to save energy. The battery cells' charging and discharging limits can also be adjusted, firmware updates (when available) installed, and push notifications enabled in UPS mode in the event of a power outage.
In practice: Efficient operation, but also compromises
In practice, users benefit above all from the low weight and compact size. This is ideal for camping, for example, or other occasions where the power station needs to be portable. At just over 16 kg, it should still be fairly easy for many people to lift - thanks in part to the two recessed handles on the left and right.
On the downside, some users may notice the lack of an LED light when using it outdoors or for backup power. This is not the first time Anker Solix has omitted one to save weight - though it occasionally proves useful in older and other models. Some users may also miss the car power socket, for example for running a cool box.
Before buying, however, it should be clear that 1,500 W of output power is not particularly generous. Depending on the model, a hair dryer cannot necessarily run continuously at its highest setting. Some other devices, such as tools and the like, also quickly pushed the Anker Solix S2000 to its limits in our test—or beyond them. The power limit also imposes some restrictions on the UPS function, which responded quickly in our test to provide uninterrupted power to selected devices during a power outage, but it is sufficient for essential appliances such as a refrigerator and freezer. The S2000 scores points here with its bypass consumption of only around 3 watts.
The S2000's efficiency also impressed us in other respects during testing. For example, it uses only just over 10 percent of its battery charge per 24 hours when left switched on with AC enabled. That is significantly less than many other power stations, which usually drain themselves within a few days under these conditions. The Anker Solix S2000 shows plenty of staying power here.
It also operates very efficiently under load. Of the stated capacity of 2,000 Wh, we were able to draw just over 1,900 Wh from the power station under a continuous AC load of around 250 W, yielding a very good 95 percent. Unfortunately, it was not quite as efficient when recharging at a maximum of 1,100 W. Here, just over 2,400 Wh passed through the meter, of which just over 82 percent reached the battery. This means that, overall, approximately 78 percent of the energy put in can be drawn back out.
Transparency
The selection of devices to be reviewed is made by our editorial team. The test sample was provided to the author as a loan by the manufacturer or retailer for the purpose of this review. The lender had no influence on this review, nor did the manufacturer receive a copy of this review before publication. There was no obligation to publish this review. As an independent media company, Notebookcheck is not subjected to the authority of manufacturers, retailers or publishers.
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