The Bulgarian struck a stunning volley late in the first half to snatch a three points that were sealed by Mark Schwarzer's penalty save from Potters forward Jon Walters
The Bulgarian smashed a wondrous volley home late in the first half to seal the three points for Martin Jol's side which inches them further away from the Premier League drop zone.
Berbatov also called on his team-mates to build on the hard-fought win and put together a run of good form between now and the end of the season.
"We know Stoke are a tough opponent to play against," he told Sky Sports.
"We know how they play the long ball and they have very strong players. We managed well from the back, we got the points and that is most important.
"We don't deserve to be in the position we are in, we are a good squad, today is important but it won’t mean much if we lose the next one we will train hard and fight hard to gain the points."
Mark Schwarzer was another hero for the Cottagers as he kept out Jon Walters' second-half penalty and the 40-year-old revealed that plenty of pre-match preparation was behind his success.
"We study quite a bit of it before the game he was relatively confident I knew where he was going to go, I just didn’t want to give too much away," the Australian added.
"At the end of the day he didn’t hit it as hard as he normally does.
"Anytime you don’t concede a goal it’s important, we needed the points today, it was vital, especially at home, we look at these games to pick up the points, today was a good win for us."