I can't seem to find a good solution to this, although I have found several forums indicating a similar issue, but only with HP/Compaq computers. I suspect that it has some thing to do with the Power Management System created by HP.... but unfortunately, it looks like they have given their laptops really bad PMS!!! Seriously though, for as much as we pay for our laptops, why shouldn't they be able to do some thing as simple as calculating the remaining time of usage on a charge. To that end, I contacted HP customer support: Rachel: *available. Daniel Wolfe: There has to be a bios update, or a program fix or some thing to allow HP and compaq laptops to calculate the time. I paid too much for this laptop for it not to be able to calculate its own battery time... Daniel Wolfe: My brother is sitting right beside me with a gateway laptop on vista and he has battery time Rachel: It might take some time to check this. Is that okay if I place you on hold for few minutes? Daniel Wolfe: Sure! I'm a patient person Daniel Wolfe: just keep me up to date like I asked! Daniel Wolfe: Thank you very much! Rachel: Sure Rachel: Please be with me. Daniel Wolfe: sure take your time Rachel: Thank you. Rachel: Thank you for your time and patience. Rachel: I have found link to gadget to sho battery time left in notebook.Please download it from link Daniel Wolfe: Thank you for your diligent effort! Rachel: http://widgets.yahoo.com/widgets/systemdashboard-battery-meter Rachel: Note: Please do not click on the link. Copy and paste the link in the new browser window and press enter. Rachel: NOTE: The URL above will take you to a non HP Web site. HP does not control and is not responsible for information outside of the HP Web site Daniel Wolfe: be right back Rachel: Sure Daniel Wolfe: its installing Rachel: Okay Rachel: Here is other link you can also use it. Rachel: http://gallery.live.com/liveItemDetail.aspx?li=8f3fe8ee-2783-4295-84b3-f65e512d4383&l=1 Rachel: Note: Please do not click on the link. Copy and paste the link in the new browser window and press enter. Rachel: NOTE: The URL above will take you to a non HP Web site. HP does not control and is not responsible for information outside of the HP Web site Rachel: This should resolve the issue. If issue persists and you need further assistance, please get back to us with SessionID: 10011011203782779107 Rachel: For your convenience I will e-mail this chat transcript to your email at: Rachel: email@example.com Daniel Wolfe: are you still there? Rachel: Yesd Rachel: *yes Daniel Wolfe: it still does not calculate the battery time left. Rachel: Please install it and restart notebook. also download both gadgets. Daniel Wolfe: yeah, it just shows 0:00 as the time remaining when the notebook is unplugged... it made me restart the computer when I installed the widget program... Rachel: It will display time when ac adapter is plugged in and time refreshes every 30 seconds. Daniel Wolfe: well, when its plugged in, the time display disappears... when uplugged, it just shows 0:00... the widget is trying to read the time, but there seems to be an issue with the way HP has designed its power management system... Daniel Wolfe: the time is not able to be read by vista or any other software Daniel Wolfe: I guess I was hoping you could talk to a tech, or software engineer or some thing so that the issue could be resolved Rachel: Have you installed yahoo battery gadget? Daniel Wolfe: yes... Rachel: Sure I will forward your concern to appropriate department Daniel Wolfe: Sorry to have troubled you... Rachel: No problem. Rachel: Not to worry I will surely forward issue to our technical department. Rachel: Is there anything else I can assist you with? Daniel Wolfe: please foreward this conversation to my email Daniel Wolfe: Other than that... thank you for attempting to help me fix this issue with your laptops Rachel: Sure Rachel: My pleasure in assiting you and thank you so much for your time. Rachel: Mail was send to firstname.lastname@example.org In any case, that was no help. Does any one have a solution?