Florian Reitmeir wrote: > Ritesh Raj Sarraf wrote: > > Linux => 5-10 minutes > > Windows => 1.5 hrs Wow. I can't imagine how much current must be drawn in order to drain a battery that fast. > maybe it would be a goog look, to see how much power does your laptop need. > on my thinkpad i can look at: > /proc/acpi/battery/... cat /proc/acpi/battery/*/state cat /proc/acpi/battery/*/info > and it tells me, how many milliwatts are drawn from the laptop. > And Capacity/Milliwatts = Time Your Laptop Will Work > > And you are sure, the lifetime is 10minutes? not the display from your > battery? This is a very good question. It is not uncommon for the acpi to report buggy values. This might simply be a reporting problem. How long does your laptop actually run before the battery drops off? On the other hand if your laptop actually does stop running after 5-10 minutes then I have to wonder if it is not a different problem entirely? Such as are the cooling fans running? If it simply dies quickly then perhaps the battery is fine but that it is overheating? In that case 5-10 minutes may be about right for it to generate a lot of heat and fail due to over-temperature. I have heard various reports from people of machines that overheat when running Linux due either higher cpu utilization or broken acpi fan controls. Just brainstorming something to think about... Bob
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