On Don, 2003-04-17 at 13:58, Michael Flaig wrote: > On Wed, Apr 16, 2003 at 06:48:24PM +0200, Michel D�nzer wrote: > > On Mit, 2003-04-16 at 16:16, Michael Flaig wrote: > > > > How long can you work with your powerbook on battery power? > > > Yes, i know, this depends on what you do with the Powerbook, right. > > > But what are your experiences? > > > - on normal working (vi, ssh, email, web, irc, etc.) > > > > About three hours. > > this is not really much :-( > do you use your powerbook with full display brightness?
No, I'm running at fblevel 7 all the time. > ... i had expected more than 4 hrs, because I can get 4 hrs with 1 battery > in my pismo which only has 45 Wh capacity and the TiBook has 61 Whrs > (wasn't this 68 Wh in the first TiBooks???) > So is this energy consumption a problem of the G4 processor or would you > call the Radeon the main power consumer? I guess both are drawing quite a bit of juice, as well as other components. The new dynamic power management code helps a bit for the M9 though. > i never read about the posibility to place a second battery in the > powerbook... using 2 batteries is what I love on my pismo :-) There's definitely no room left in a TiBook for a second battery. You can hotswap batteries though. > So I wonder myself why Benjamin gets around 4 hrs and you only get 3 ... Probably because I haven't done anything special except clocking down the CPU. > > > - and on heavy cpu using (compiling, etc.) > > > > Haven't really measured this, but I guess about two hours. > > so the 5 hrs which Apple says, could only be reached with display turned > off :-( Mac OS may still be slightly better at saving power than Linux, but even so I doubt 5 hours can be achieved doing anything useful in Mac OS... -- Earthling Michel D�nzer \ Debian (powerpc), XFree86 and DRI developer Software libre enthusiast \ http://svcs.affero.net/rm.php?r=daenzer
