Question about Revolt Wind generator

Here is the information provided by the manufacturer:

Mini wind power plant for the home. Ideal for chargers, laptops, lighting, car batteries and more. Max. charging current 25 A, power 300 W. Wind power now provides environmentally friendly energy for your home! With the Wind Turbine for 12 Volt Systems and a suitable charge controller (not included), you can convert the wind into usable electricity for chargers, laptops, lighting and more. An investment that really pays off! You can easily create energy where there is none: let a car battery charge with wind energy during the week, you'll have plenty of energy for pleasant lighting, your little garden party and even a laptop or TV at the weekend.

Campers and caravan enthusiasts can also rejoice: wind energy charges the batteries of your motor home and prevents them from being deeply discharged. So you can confidently charge your mobile phone or smartphone via the 12 V socket without having to run the engine in the meantime.

Another great idea for boats with an electric motor: simply place the wind turbine on your boathouse and charge the battery there. It doesn't matter how far away the boathouse is: on the next trip, your batteries are ready for a tour.

6-blade wind turbine with 12 V / AC
Recommended charge controller for conversion to DC: NC-5699 (to be ordered separately)
Rated power: 300 watts
Maximum load current: 25 A
Rotation: up to 900 rpm
Long service life of up to 10 years
Galvanised surfaces and robust plastic
Minimum wind speed: 2.5 m/s
Optimum wind speed: up to 12.5 m/s
Protection against over-winding (electromagnetic brake)
Working range: -40 to +70 °C
Connection: three-phase three-phase current
Mounting bracket: Ø 32 mm
Rotor diameter: 1050 mm
Length: 62 cm
Weight: 5.6 kg