My laptop of a year. Lenovo G560 just died. How do i know the battery has died?

If you can't turn it on still without the battery in than it might be some other piece of hardware.

You can contact lenovo here, where they will run through the problem with you and find the answer to your woes:

http://shop.lenovo.com/...e/contact/

Take the battery out, get your charger and plug it into your laptop. See if you can turn on the laptop without the battery in the laptop. If you can turn it on, your battery is probably dead.

Either the PC or the cable is dead. Very hard to diagnose.

Ok did that.still doesn't turn on. Could it be something else. Have no techs where i live

Above all answer is right.
even check without battery, check with another charger.
still doesn't work then contact nearest lenovo dealer.