laptop with maximum battery power under 50?

[mnnueltuttu]

Hi i would like to buy a new laptop
my main criteria are follows

budget 50k

processor i5 2nd generation

Ram 4gb DDR3 upgradable

weight less than 2kg prefered

Battery== most needed

So they are my requirement

I want my laptop to have maximum battery life lets say 6hrs.

1. Plan to upgrade HDD to SSD is it good
2. How about the 128gb SSD kingston with 3 yrs warranty
3. Can you please guide me to how to change Hdd to SSD not the physical change but the software change
4. How to copy windows os and software from HDD to SSD

I have short listed few laptops particularly samsung series5 and series 3 how about them are they reliable.
Please provide me other alternatives as well.

I like to use the laptop for common purpose like word processing,surfing,movies,little Photoshop editing,games like civilization,sims3

[aroraanant]

In 50k you can get i5 or even i7 laptop but you still want a i3, thats strange!
If you want i3 and good battery back up you can get it for ~30k also.
So first choose what you want and then tell us so that we can suggest you accordingly.
And for what purpose you will be using the laptop,like you gonna game or not and everything?
Generally the weight of the laptop will be around 2-2.5kg.
The samsung laptops are good and also you can have a look at Acer timeline series.
And if want a light weight laptop and a good battery back up,then you can also try Apple Macbook Pro which costs 60k or Macbook air 11" which will costs you for a lesser price also.