Some Sony laptops have generically manufactured batteries, but not all. The AC adapters are generic, but the batteries may be a custom fit, dependent on the model.
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in batteries sony is better
The differences between Sony Vaio laptops and other Sony laptops are in size, performance and features, so one can choose the laptop that will best suit their needs.
I recommend dell or toshiba laptops but sony are good too
Sony laptops are in fact reliable for business there a reputable brand with great laptops, notebooks and desktops.
Sony offers and produces the Vaio range of computers. They are a series of laptops that offers low-to-high end solutions for end users, preferably home users.
The best laptops with regards to warranties are generally the ones that have been imported and manufactured in Asia. For example, Toshiba, Samsung, and Sony. These laptops have a higher price tag, generally speaking, which means they normally come with a better warranty.
It really depends on what you want, Sony laptops are mainly for Windows operating system, and if you preferred to use Windows, then Sony is better, or else, choose a Mac.
No the Sony Xplod will not recharge batteries when it is plugged in.
I know that Sony Ericson batteries are not listed as one of the top 10 batteries. Sanyo, Duracell and Energizer make some of the best batteries. I think Sony Ericson batteries are average.
You can compare Sony laptops online at Sony VAIO or other websites such as, comparelaptops.com. There are many other brands of laptops you might want to consider comparing besides just the Sony brands. These websites can help you with all the questions you might have.