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Re: [Mactel-linux-users] Better battery-life?
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From: Soeren S. <mac...@nn...> - 2008-02-03 16:57:46
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On Sun, 2008-02-03 at 16:39 +0100, Sheer El-Showk wrote: > Hi Soeron, Hi Sheer, thanks for the hint! > You might want to try coconut battery in OS X to see how many power > cycles your battery has had. If its under 100 and you're down below > 50% you should take it back to an apple dealer and request a new one. > I take a lot of care with my battery to keep up its health (I avoid > microcharging and I try to drain it at least once a week but not more > if I can avoid it). With this care my first battery stayed over 90% > capacity for almost a year before it started fluctuating between 50 > and 90% so I took it to the store to get it replaced (this was covered > under a particular recall for flawed batteries). I've only had my new > one for a few months but its still over 95% health. Well this notebook is 17months old and the battery had 162 charges and is down to 47% ... And this is the second battery already. Maybe I am using this machine to heavily. Soeren > cheers, > Sheer > > On Feb 2, 2008 8:41 PM, Soeren Sonnenburg <mac...@nn...> wrote: > > > > On Sat, 2008-02-02 at 18:35 +0000, Michael wrote: > > > Hi, > > > > > > I'm a bit shocked: > > > > > > BAT0 # cat info > > > present: yes > > > design capacity: 55000 mWh > > > last full capacity: 24130 mWh > > > battery technology: rechargeable > > > design voltage: 11100 mV > > > design capacity warning: 250 mWh > > > design capacity low: 100 mWh > > > capacity granularity 1: 10 mWh > > > capacity granularity 2: 10 mWh > > > model number: ASMB012 > > > serial number: > > > battery type: LION012 > > > OEM info: Sony012 > > > > > > cat state > > > present: yes > > > capacity state: ok > > > charging state: charged > > > present rate: 0 mW > > > remaining capacity: 24130 mWh > > > present voltage: 12478 mV > > > > > > It's only half loaded! If I press the button on the battery it shows full > > > capacity. Will check it in OSX later. I have this battery over one year now. > > > > Yes I had that with two batteries already look at this: > > > > $ cat /proc/acpi/battery/BAT0/info > > present: yes > > design capacity: 55000 mWh > > last full capacity: 18500 mWh > > battery technology: rechargeable > > design voltage: 11100 mV > > design capacity warning: 250 mWh > > design capacity low: 100 mWh > > capacity granularity 1: 10 mWh > > capacity granularity 2: 10 mWh > > model number: ASMB012 > > serial number: > > battery type: LION012 > > OEM info: Sony012 > > > > Soeren > > > > > Michael > > > > > > > > > > With display off (using an external tft) and wireless and bluetooth > > > > disabled I can get down to 18-19W on this mbp1,1 (radeonhd, 2.6.24, all > > > > the tricks that powertop suggests including ahci-patched kernel). > > > > > > > > And this translates to slightly more than 1 hour battery usage here > > > > (this is already the second battery!) > > > > > > > > And yes it is *NOT* better with OSX, there it was 23.8W with full > > > > brightness and everything turned on and 18.5W with lowest brightness and > > > > everything off. > > > > > > > > Before all that power stuff entered the kernel and before radeonhd I had > > > > about 28W with everything on+full brightness in linux and 23 with lowest > > > > brightness... > > > > > > > > So about 3hrs is the best you can do with a shiny new battery. Not like > > > > with the old powerbooks that even under linux could easily do 3-4hrs > > > > under normal conditions with powerdraining kernels :( > > > > > > > > Soeren > > > > > > > > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by: Microsoft > > Defy all challenges. Microsoft(R) Visual Studio 2008. > > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > > _______________________________________________ > > Mactel-linux-users mailing list > > Mac...@li... > > https://lists.sourceforge.net/lists/listinfo/mactel-linux-users > > > |