Does it include a charge controller?

Yes. It ships with a 40A MPPT charge controller, so it can charge a 12V battery bank directly. You still need your own battery and cables to the bank.

Can it charge a portable power station?

Only if the station accepts the panel's voltage. Open-circuit voltage is 47.2V, which is above the input limit of many small stations. Check your station's solar input range first.

How heavy is it to carry?

About 30.2 lbs folded. That is fine from a car to a campsite but heavy for long walks, so most owners leave it near the vehicle.

Can I tilt it toward the sun?

Yes. The adjustable legs let you set the angle, which helps in morning and evening sun or low winter light.

Is 400W enough for a van or cabin?

In good sun it can cover modest daily use, such as charging a battery bank for lights, a fridge and device charging. Heavy loads like air conditioning need more panels.

Can I connect more panels to it?

The controller and panel are rated for a 12V system, and the panel's maximum series fuse rating is 15A. Adding panels depends on your controller's limits, so size any expansion to the 40A controller.