what do I have here ???

Just got a used laptop finally.... The problem is though, I havent a clue what it is i need to get a battery for it and would like to get some more memory.... but there is no model # on it It is A Hatachi, on the cover it says hitachimobilised computing. It has a intel 266 processor 80 meg ram and a 1.99 gig hd. it is grey in color has built in usb, modem and ethernet. there is a port replicator with it that saysfor Vision book 7000-8000 series... I would like to know the exact model # also where is the best online place to get batteries for it???
there is a sticker on the bottom of it. which probably had the model # on it but it has long been rubbed off from wear..... thanks in advance