I get about 1 1/2 hours at the max with my B130. It get tiring being told I should not expect decent battery time because was bought a "budget" (cheap) laptop. I'm told the 6-cell batteries gives a longer use time, but most anything would be better. I wold think having a bottom of the line PC, it would use less energy. It's too bad Dell didn't offer a battery upgrade when I bought mine. They only had the option to purchase an "extra" battery. Anyway your best bet is to buy a 6-cell battery. It should at least last a bit over two hours.