SlashGear

If you’re wondering what that unsightly growth is on the back of this Eee PC 901, it’s actually the official ASUS extended battery.  But before you dismiss it as too cumbersome or, taking the weight of the 901 up to around 1.2kg, too heavy, picture this: 8 to 10 hours of continuous use from a single charge.

Yes, 8-10hrs is the suggested runtime if you sacrifice a little portability.  Suitable for the Eee PC 901 series, 1000 series and 1000H series (though not the 900 or 700 ranges), the battery is currently available on eBay for just under $100.

Inside there’s 8,800mAh worth of 7.4v Li-ion battery.  The product code is AL24-1000 in case you want to source one yourself.

[via jkkmobile]