Wh. HP offers a 5eight Wh supplementary battery that fastens beneath a notebook PC. Various notebook vendors offer optional double-capacity batteries, that also normally stick out well past the rear edge of the notebook itself. A second 48 Wh battery can...

m² on all devices. The following should be noted in judging battery life: At 15.4", the display on the Inspiron 8600 is larger than the Yakumo Q8M Power64 XD's and accordingly eats up more power. At 72 Wh, the battery in the Dell notebook is far smaller in...

feature, HP offers a secondary 58 Wh battery for the nc8230, costing $190. This can be "slung under" the case as needed. Combined with the 71 Wh primary battery, the notebook's running time can theoretically be extended by a full 80%. HP's Common Travel Battery...

The X610 11.1 volt 24 mAh 3 cell Lithium Ion battery, is rated at 26.6 Wh, about 25% of the HP Pavilion's much more powerful, 12 cell, 95 wH battery. That's why the battery life we measured of around 1 to 1.75 hours depending on usage scenario is rather more...

• -Features

a high-performance unit with 9 cells, which can increase battery life by up to fifty percent. At the NCIX.com site, a high-performance battery goes for nearly $200; other retailers offer it at prices up to $205. The notebook ships with a 6 cell, 55 Wh battery....

on a charge. With its 35 Wh battery it consistently delivered 66 to 75 percent of the battery life of the Sony TX670P with its 58 Wh battery. You'll notice that the wireless web browsing test was not conducted on the Sony TX670P. Earlier wireless browsing tests...

year ago, maximum battery life of almost 3.5 hours would have been the tops for a device in this performance class. In the Centrino epoch, the MB02 occupies the center field with this time. In some part, that can be put down to its relatively small 53 Wh battery....

n/a 208 g / 0.459 (DVD-Drive) Total 3704 g / 8.16 lb 4019 g / 8.86 lb AC Adapter &Battery Battery I Capacity Li-Ion 6 cells (11.1V,4800 mAh,53 Wh) Li-Ion 12 cells (14.4 V 6600 mAh 95 Wh) Battery II Capacity n/a Li-Ion 6 cells (10.8 V 3600 mAh 39 Wh)...

can extend to nearly seven hours. When just the primary 71Wh high capacity battery is used, the laptop still has a run time of 3.8 hours. How long will the Compaq nx6125 with a Turion 64 CPU and 52 Wh battery last? Well, after only two hours and eleven minutes,...