Why did my BLK MacBook ruin a new battery in 40 cycles???

Hi guys and girls... I've been trying to search the web for an answer but can't find one. My problem is that my Black Core Duo MacBook destroyed a new battery in 40 cycles and now won't recognise any battery. What has happened? Is it the magsafe board, logic board - I've even tried different power adapters. Any insight will be great.

Cheers,
Jarryd

it's the first generation Core Duo. I don't really use it that much any more because I have a newer one, but it still bothers me why it is this way...