The internal battery on the NoteSlate provides up to 180 hours of continuous use before requiring another charge.

NoteSlate的内置电池一次充电可连续使用180h。

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The battery has a charge life of about three hours with continuous use.

电池充电后可无间断使用大约3小时。

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And the best produced so far have an operational life of only 5, 000 hours-ie, little more than six months of continuous use.

到目前为止，最好的有机发光二极管的寿命仅为5000小时—也就是说，连续使用寿命不足6个月。

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It will weigh 2.95lbs and offer up to six hours of continuous use, TechSpot reports.

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The MiFi Liberate, which offers access to 4G LTE speeds, boasts a powerful battery that offers up to 11 hours of continuous use.

ENGADGET: AT&T's new MiFi Liberate is LTE-capable, 'world's first' with touchscreen display

After a certain threshold of about 24 hours of continuous use, the bill accumulated at by-the-hour or by-the-minute rate typically exceeds the cost of otherwise paying a flat daily rate on a traditional car rental.

BBC: Pay-as-you-go rental cars