Print 12 comment(s) - last by GaryJohnson.. on Mar 3 at 1:08 AM

Acer Aspire One 10-inch netbook tested with normal 2200mAh battery

Netbooks are extremely popular right now and their popularity only continues to grow. Acer has the most popular netbook on the market with its 9-inch Aspire One. The machine is the top selling netbook right now and to keep that top spot, Acer is coming out with a new netbook with a larger screen.

The Acer Aspire One 10-inch offers a larger screen than the original that should be more popular than the original 9-inch version. When the first batch of 10-inch Aspire One's went out, Acer reported that a battery issue had been discovered. Unlike most battery issues which mean the system is either going to burst into flames or won’t run as long as promised, this battery error was in the user's favor.

The first batch of the new netbook to hit the market had a 6-cell battery inside the offered 5500 mAh, but what was supposed to have been used was a 6-cell battery with 4400 mAh. The larger battery was good for 7 hours and 57 minutes of runtime according to Laptop Magazine.

Laptop got a normal 4400 mAh battery and when tested it ran but a mere 4 hours and 24 minutes. Laptop points out that for only $50 more you can get the Eee 1000HE that will run for 7 hours.

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RE: 4400mah/5500mah != 264min/477min
By mindless1 on 3/2/2009 9:54:46 AM , Rating: 1
Considering the discrepancy between runtime with the 4400mAH battery pack and other netbooks with 4400mAH battery, it seems most likely they've either varied their testing procedure, didn't have some power management feature equally enabled, or simply received a specimen of battery that had lower true capacity than it was rated for, a bad cell in it perhaps.

They should have noticed the numbers don't add up as you did, and retested with a different sample before reporting the result.

RE: 4400mah/5500mah != 264min/477min
By GaryJohnson on 3/2/2009 10:24:11 AM , Rating: 2
My own report: I have a 2200mAh in my 9" aspire and it will run ~2.3 hours in XP. So ~4.4 hours on a 4400mAh actually sounds about right.

To me the question is how the 5800mAh managed 8 hours. Maybe that was under linpus? The laptopmag guy doesn't say much about his testing methodology except: "continuous Web surfing over Wi-Fi". So did he really surf the web for 8 hours?

RE: 4400mah/5500mah != 264min/477min
By mindless1 on 3/2/2009 3:08:51 PM , Rating: 2
Possibly, on one page they wrote

Other netbooks with 4400-mAh batteries, the MSI Wind U100 and Wind U120, got 5:13 and 4:28 hours, respectively, when we ran our battery test on them.

But then on a different review page,

The Aspire One's standard 4400-mAh 6-cell battery delivered 4 hours and 24 minutes of battery life, one minute longer than the netbook average (which includes 3-cell systems), but significantly shorter than most of its competitors with 6-cell batteries. Although they are more expsensive, the Eee PC 1000HE (7:08), Samsung NC10 (6:34), and HP Mini 2140 (7:19) all outlasted the Aspire One by more than two hours.

I'm not familiar with the specs on all of these, is there anything else that could account for the others achieving longer runtime? If the Samsung has LED backlighting that could help, and of course some have the 9" screen but an inch of screen shouldn't account for much.

Then there's that other possibility, if the specimen with the 5800mAH battery was cherry-picked, if they tested a few batteries to find one that did exceptionally well for review purposes, or a different bios changed efficiency. They really ought to have gotten in touch with Acer to seek an explanation.

RE: 4400mah/5500mah != 264min/477min
By icrf on 3/2/2009 5:49:56 PM , Rating: 2
I think the Samsung NC10 is an LED backlit 10" screen, but it comes with a 5300 mAh battery, too. Several variables.

By GaryJohnson on 3/3/2009 1:04:46 AM , Rating: 2
I'm not 100% sure here, but I think all of the atom netbooks are LED backlit. I know the acer is anyhow.

"And boy have we patented it!" -- Steve Jobs, Macworld 2007
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