The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Instead I have ordered a second battery which I can carry in my laptop bag. It's not as convenient as an extended battery, but it won't take long to hibernate and swap batteries if I need the extra juice. It also doesn't make the laptop thicker when I don't need the extra.
..yeah, really wish they would make a lithium polymer battery pack. Could be pretty expensive, and I'd still buy one. Better capacity is good, of course - but not the first reason.. Having a reserve battery with an organic lithium-ion solution can be a bit annoying. Either because it suddenly performs very strangely if it gets cold, or it's not charged regularly. You don't get that problem with a synthetic and solid electrolyte (lithium polymer). Also lasts forever.
For example, I've had a lithium polymer battery on my smartphone - it's lasted me since 2001, with constant charge and discharge, along with a few trips in the snow, and it was dunked in water a couple of times as well. It still has a 98% charge. Only minus with it, obviously, is that the manufacturer of the phone won't sell me overpriced replacement-batteries..
But an extra capacity battery that would survive being put in a backpack, and forgotten for a few days. Along with relatively sane bios-settings (that for example could allow lower volt ram, along with lowering bus and processor speeds - and Asus would have a lot of absolutely awesome products on their hand right now.
Problems? See this thread at archive.org.
