Is there a laptop without a power adapter? So complicated
No, even if you only use the battery, then what do you charge ah? So the notebook must be brought with
Never seen ~ power adapter stripping notebook host is the result of development
Unfortunately, the kind of notebook you said does not exist.
Or you buy a battery capacity of the wisdom of the big bar. (Netbook) basically can control 6 to 8 hours.
The role of the power adapter is to turn AC into DC, reduce the voltage, and then directly use or charge.
There is no direct use of 220V AC laptop.
If you want to integrate the power supply function into the laptop, one is the problem of heat, the second is the weight will increase, the third is the volume will become larger.