Linked by h3rman on Thu 21st May 2009 11:01 UTC
Hardware, Embedded Systems Few hardware vendors have not yet launched their own mini laptop (or, "netbook"). Most brands these days produce their own version of the same hardware, with Intel's i386-compatible Atom cpu's and Windows XP installed on a spinning hard drive or sometimes still a solid state disk. Some Linux models are still sold by some vendors, among whom Asus, which more or less started selling in this OLPC-inspired genre of laptops.
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Battery, nd a few more questions?
by darknexus on Thu 21st May 2009 15:33 UTC
Member since:

Is that the only battery you can have with this? What's it's capacity? 1.5 hours doesn't sound particularly energy efficient at a glance, though if the battery is a lower capacity that would explain it.
As for me, that would be a deal killer, no questions asked. That isn't nearly enough battery life to qualify as truly portable in my book, and not nearly enough for me.
A question: Does it suspend and resume? Standby or hibernate, and does it work well when suspending and resuming?
All and all, this looks cool but I just can't justify the price for one of these when an x86-based machine that can get about 5x the battery life (Eee pc 1000HE) is significantly cheaper. Me being a geek, I'd love to have one and tinker with it... but it's just too expensive for what it is in my opinion.

Reply Score: 2

h3rman Member since:

The battery life is one and a half hours, it's a light 3-cell battery.
As for suspension/hibernation, unfortunately that's not there (yet?) in Linux on MIPS on this machine at least.
I often take this laptop to the univ. library for hours and I can plug in the power adapter there. I usually don't think about battery life for laptops, so that wasn't much of a deal breaker for me. Especially since battery life tends to deteriorate rather quickly if you really put it to good use. So then you end up with replacement batteries, or extra batteries anyway. So I don't care that much but I can imagine it would be a problem to some people.
I'm still waiting for the solar cell laptop anyway. :-)

Reply Parent Score: 3

gustl Member since:

The solar laptop:

Possible, but with some drawbacks.

If you take a standard notebook you get 0.08 m^2 of surface area. Using good silicon photovoltaic cells you can get an efficiency of 20%. At 1000 W/m^2 of light power from the sun, this will give you:

1000 W/m^2 * 0.08m^2 *0.2 = 16 W

These 16 W you will get at noon, with the solar panel facing the sun (best case conditions). In the evening, or if the sun does not directly shine on the solar cell, you will get MUCH less power. I don't give it much of a chance at getting 2 W out of that panel in most real-world conditions.
That is where the original XO OLPC used to be.

So it is possible, but don't expect too much from this.

It too is a waste of money, as the same panel put onto a roof has 10 times higher energy output than if attached to your laptop. Also the lifetimes do not match. you will throw away your laptop maybe after 6 years, but the solar panel will last for more than 30 years.

Reply Parent Score: 2