Humm... can you give more info on your battery? brand, references, where to buy? 3h 40m is pretty cool for me (at least is better than 15 minutes :-)I have a Clevo 2700T and mine died after about a year. It got to the pointof apparently charging fully, and then going down to about 1:04hour and then suddenly saying that it only had 4 minutes.I replaced it with a new 8 cell battery and I now get 3hours 40minutes which is wonderful. It cost #80, but it is very useful.
Paulo Lopes