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  2. Lenovo Essential laptops - Wikipedia

    en.wikipedia.org/wiki/Lenovo_Essential_laptops

    Released in 2011, the B570 laptop received a positive review from CNET, with the reviewer saying, “For such a modestly priced laptop, the Lenovo Essential B570 really does punch above its weight.” [18] The pros of the laptop were listed as the low price, good performance, design, and display. The only con listed by CNET was the low storage ...

  3. ThinkPad W series - Wikipedia

    en.wikipedia.org/wiki/ThinkPad_W_series

    One point not in the laptop's favor was the low battery life—approximately 2 hours and 30 minutes. The laptop featured up to a 2.53 GHz Intel Core 2 Extreme QX9300 CPU, up to 8 GB of DDR3 RAM (two slots), either an ( MXM -mounted) Nvidia Quadro FX 2700M or FX 3700M with up to 1 GB video RAM, and a 17-inch (43 cm) 16:10 TN LCD display with a ...

  4. Mean time between failures - Wikipedia

    en.wikipedia.org/wiki/Mean_time_between_failures

    The Mil-HDBK-217 reliability calculator manual in combination with RelCalc software (or other comparable tool) enables MTBF reliability rates to be predicted based on design. A concept which is closely related to MTBF, and is important in the computations involving MTBF, is the mean down time (MDT).

  5. Product lifetime - Wikipedia

    en.wikipedia.org/wiki/Product_lifetime

    Prince was built 1863 and operated 1864–1936, 1955–1968, 1980-present, a product life of over 150 years, a service life of around 125 years. Product lifetime or product lifespan is the time interval from when a product is sold to when it is discarded. [1]

  6. Power supply unit (computer) - Wikipedia

    en.wikipedia.org/wiki/Power_supply_unit_(computer)

    Life span is usually specified in mean time between failures (MTBF), where higher MTBF ratings indicate longer device life and better reliability. Using higher quality electrical components at less than their maximum ratings or providing better cooling can contribute to a higher MTBF rating because lower stress and lower operating temperatures ...

  7. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    A common size for cells inside cordless tool battery packs. This size is also used in radio-controlled scale vehicle battery packs and some Soviet multimeters. 1 ⁄ 2-, 4 ⁄ 5 - and 5 ⁄ 4-sub-C sizes (differing in length) are also available. Soviet 332 type can be replaced with R10 (#4, 927, BF, U8) or 1.5 V elements from 3 V 2xLR10 packs ...

  8. IdeaPad Y series - Wikipedia

    en.wikipedia.org/wiki/IdeaPad_Y_series

    The Y70 scored 4.5 hours of battery life on MobileMark's Office Productivity Test but is only able to achieve a battery life of about 2.5 hours for gaming. [7] A review from Notebook Review said, "We're happy to recognize the Lenovo IdeaPad Y70 Touch with our Editor's Choice award for being a great large screen entertainment notebook." [8]

  9. ThinkPad E series - Wikipedia

    en.wikipedia.org/wiki/ThinkPad_E_series

    [6] Engadget also tested the battery life of the Edge 13 and discovered that "Lenovo's battery life prediction of seven hours is pretty on the mark." The Edge 13's battery lasted 5 hours and 12 minutes. [6] Laptop Magazine reviewed the ThinkPad Edge 14 and found it was "the most compelling 14-inch small business notebook on the market today." [7]

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    lenovo b570 battery life span time and quality rating manual tool pdf