What is the Battery life of a Macbook Air 11" made in Late (October) 2010?

[Kapesa]

This macbook air was given to me by my dad's friend dude the summer. Even though it's very bad for games (2GB RAM) I still like it. BUT the battery life is horrific, even when I'm on Facebook, after 15 mins, The Laptop goes off and when plug in the charger and restart, it's 70% left on the battery. and when I watch movies, it goes off after 10 mins and when i put it on again, it sometimes shows there is 0 percent on the battery. I'm going to replace batteries but I have some questions.

-How many movies or hours of a movie can you watch without having to charge
-How much time can you spend on something like Facebook/Twitter without having to charge?
-Also, when playing a game, give me an example of a game and how much time it takes to eat the whole battery

Here are some info abt my mac:
-According to a software it was made between 4-10th october 2010
-11 inch macbook air
-1.4 GHz Intel core 2 duo processor
-2 GB 1067 MHz DDR3 of memory
-128 GB storage capacity

Please help
and thanks in advance

[TimK]

If it's nearly 4 years old and has been well used the battery has had it.

You need a new battery. Looks to be about $60 + fitting. I'm guessing at $100-$150

[melissa]

It's really old, so what people may suggest is likely to be wrong for your device. Get a new battery if you can.