Summary: ECTIVE BlackBox 10 Powerstation added

Why It Matters: The competitor added a new power station product. This expands their product line.

What Changed:

• The BLUETTI EP500 Pro Powerstation was replaced with the ECTIVE BlackBox 10 Powerstation in the "Tragbare Power für unterwegs" section.
• The new product listing includes more detailed specifications: "1000W 1036,8Wh Reine Sinuswelle 230V Lithiumbatterie 40,5Ah 25,6V".
• New links were added at the end of the content for various battery categories and accessories.