We usually lug our power supplies around with our laptop, don't we? I have a table here of some laptops and their weights, plus total weight including PSU. If you'd like to add one to the list, please let me know!.
|Laptop||Laptop weight||Total weight|
|Apple Macbook Air 11"||1.0kg||1.3kg|
|Apple Macbook Air 13"||1.4kg||1.7kg|
|Toshiba Portege 13"||1.5kg||1.8kg|
|Apple Macbook Pro Retina 13"||1.6kg||1.9kg|
|Apple Macbook Pro 13"||2.0kg||2.4kg||HP Elitebook 8440p||2.4kg||2.9kg|