When Acer recently demoed their 10 inch Aspire One netbooks, many reviewers were pleasantly surprised to discover a netbook that could boast an uptime of nearly 8 hours while under moderate use. That was largely made possible by the battery capacity, which was a six-cell 5800mAh unit. Unfortunately for potential owners of the netbook, the units that reviewers (and some early bird customers) got were “mistakenly” shipped with the larger battery.

Most of the units will actually be delivered with a 4400mAh battery which would in turn have a shorter runtime. Acer claims the smaller unit will still get around 6 hours of battery life, though one review site speculates it’d be lucky to get 5.5 hours, compared to other netbooks with similar sized batteries and specs.