clark i know the 8330 come with 1250mah,and the older curves 8300,8310,8320 have 1000mah,two different part numbers,check out rim spec,i didnt believe it either,but its true,i have both 8310 and 8330 and my 8330 last alot longer. clark you have the daddy of the curves 8330 has more mem the more mem free the fast the phone works>