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On Sat, 14 Feb 2009, Gordon Henderson wrote: > On Sat, 14 Feb 2009, tom wrote: > >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> I'm doing a little bit of research into the power consumption ratings on >> the power supplies for different makes and models of Ultra Mobile >> Laptops (Acer Aspire One's, Asus Eee's etc). >> >> I have a Aspire One (Model ZG5) which according to the power supply is >> rated 19V 1.58A = 30.02 Watts. It got me thinking that 30Watts still >> seemed quite high, although my model does have a 120Gb mini HDD, so I >> want to compare different models and configurations. > > Remember that you may need up to double the power when it needs to charge > the battery. > > With my AAO... (8GB flash drive)... > > On my meter - charging, not turned on, it's currently taking 20W > > I turned it on and it peaked to 28W, then settled down to .. 27W. (Clock > speed is now 800MHz, Wi-Fi is ON) However I don't know how much of those > 27W is now going to the battery - I'll need to wait until it's charged.. > > My PSU, like yours is rated at 30W, so it's running pretty near flat-out. > > Running burnBX, the clock speed goes up to 1.6GHz, but it's still only > consuming 27W. > > Even running up compiz and doing a lot of 3D screen rotations, it's stable > at 27W. Other benchmarks didn't change it. > > I'll wait an hour until it's charged and let you know what it drops down > to. It's down to 13W charged and running, so it looks like it only allocates 14W to charge the battery when running. Gordon -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html