I have a Toshiba Satellite A105-S2021 laptop, and I wanted to get a new extended battery from Ebay for it, however I notice that the voltages differ quite a bit. My laptop's original battery is a 4 cell 2000 mAh, and it's voltage is 14.4. But the battery I'm thinking about getting that is also for this model and is claimed to work is a 12 cell 10400 mAh, but it's voltage is 11.1. Considerably less than my original battery, and it makes me wonder if it would even give my laptop enough power to run? Do you think that the battery will be compatible with my machine? Please reply soon, thank you!