Can you have a long battery life for laptop with Powerbank?

Can you have a long battery life for laptop with Powerbank?

That's exactly what they're there for? It should only have enough power

Not with a mini bench like the one in the photo, but there are large, heavy banks for notebooks with different connections. Somehow it makes little sense with the weight.

How many hours will that take?

It is not the size that matters, but the performance.

In principle yes, only it must have a sufficiently high voltage and power. The typical power banks that can charge a smartphone are not suitable for this. They only supply the required 5 volts.

Reading tip: https://powerbank20.com/de/laptop/

Achso is right, the batteries with 45,000 mAh and more that are suitable for notebooks, are all only 7 cm tall and weigh 5 grams as the 700 mah power bank in the photo above.

Can you calculate mah (there's no other way)

There are also small compact 5000-1000 power banks

Sufficient for most people

What do you think the additional batteries are made for otherwise?

Certainly not to bake a roll.

Sub notebooks without performance that is not enough for an average of 15 hours with a normal laptop

Most 15 inch laptops also have only 15 watts of CPUs installed, so that's enough for a while

Famous has been able to supply his macbook pro with a 20000 power bank for several hours

What the CPU needs does not matter, there are completely different consumers. And the Apple is more effective in terms of power consumption is nothing new but even there the battery has over 7000 mAh. How far you can get there with 1000 mah you can calculate.

It's not for nothing that you say a notebook or Macbook, the difference is just a few zeros.

https://www.amazon.de/...B01LZXPMXM