I have a Toshiba Satellite 2405-S201 I just got a new battery for it when i installed the battery it charged to 100% and the light turned green but when i pulled the power cord out the back it did not stay on. The power went out, whaen I plugged it back up the same thing everything was fine green light and I pulled the cord and nothing. Is there a way I can switch from AC to Battery without unplugging it? or is this a hardware problem or could It be the battery, it's still under warranty so I can still return it with no problem. I am just out of options.