Könner & Söhnen KS 300PS portable power station

The Könner & Söhnen KS 300PS portable power station is a compact and practical off-grid power source for the home, travel, camping, working away from the office, the holiday home, and as a backup during power cuts. The model is designed for situations where you need to quickly connect basic equipment, charge gadgets or keep essential devices running without access to the mains supply.

The station has a rated power of 0.3 kW and a maximum power of 0.5 kW. This capacity is well suited for laptops, smartphones, tablets, routers, lighting, portable electronics, small TVs, chargers, camping equipment and other devices with moderate power requirements. It is a convenient solution for everyday backup when a large, heavy power station is not required, but stability, portability and a reliable battery are essential.

The Könner & Söhnen KS 300PS is based on a modern LiFePO4 battery with a capacity of 294 Wh. Lithium iron phosphate technology is characterised by increased durability, stable performance and a long service life. This model is rated for up to 4,000 cycles, so the power station is designed not only for occasional use on trips, but also for regular use at home or at work.

The 294 Wh capacity allows the station to be used for basic household scenarios. For example, a TV with a power consumption of around 60 W can run for approximately 5 hours, and a fridge with an estimated consumption of 40 W — for up to 7.5 hours. Actual runtime depends on the specific device, its operating mode, inrush currents and overall load, but for low-power appliances, the KS 300PS offers a good reserve of autonomy in a compact format.

One of the model’s strengths is its wide range of ports. A 220 V socket is provided for powering devices from the mains. For modern laptops, smartphones and accessories, a 100 W USB Type-C PD port is available, allowing compatible devices to be charged quickly without a separate power adapter. Additionally, there are 2×USB-A 18 W ports for fast charging of gadgets, as well as DC5525 12 V/10 A, DC7909 and 12 V/10 A cigarette lighter sockets for connecting compatible equipment.

The KS 300PS supports several charging methods. It can be charged from a standard mains supply, a car charger or a solar panel. Support for solar charging makes the station more versatile for camping, trips to the countryside, summer cottages and situations where access to a power socket is limited. This is particularly useful for users who need an autonomous power source not only at home but also on the go.

For ease of use, the station supports Bluetooth 5.0 and smartphone control. This allows for more convenient monitoring of the device’s operation, tracking the charge status, and using the power station more flexibly. The built-in LED torch adds practicality during power cuts, night-time trips, camping, or work in poorly lit areas.

The casing is made of plastic, is black in colour and has compact dimensions of 340×105×185 mm. The power station weighs just 4.3 kg, making it easy to carry, take with you in the car, store at home or use as a mobile power source for various tasks. Thanks to its portable design, the model doesn’t take up much space and fits easily into everyday use.

Multi-level protection helps ensure the safe operation of both the power station itself and the connected devices. The station protects against overloading, overcharging, over-discharging and overheating. This is important for stable operation, especially when the device is used as a backup power source for sensitive electronics.

TheKönner & Söhnen KS 300PS is an excellent choice for users who need a portable power station that isn’t too large but is highly functional, featuring a long-lasting battery. It combines a LiFePO4 battery with a lifespan of up to 4,000 cycles, multiple charging options, modern USB outputs, a 220 V socket, smartphone control and a convenient format for everyday use.