My Toshiba laptop (Satellite, C655D-S5041) died this morning. It's six years old. It won't hold a charge with or without a battery, on or off. My mom's Lenovo fits my power jack, and mine fits hers. Different equipment, different outlet: it still won't hold a charge. So I'm assuming that it's a hardware problem that I can't fix. I was in the middle of saving stuff to my flash drive when it died, so I didn't get much. I really need my files! Can anyone help me?