Why are my Gateway laptop lights on top of the keyboard not turning on?

ok i was on m laptop with out the charger plugged in i looked at my battery life icon in the lower left corner to see how much i had left it said 11min and then it just shut down i plugged in the charger and some of the lights that usually turn on at the top of the key board are turned off (the touch buttons) and then i go to my battery life icon thing it says "consider replacing your battery" did the battery mess up my laptop????