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The IdeaPad S10 was Lenovo's first netbook. [4] While Engadget found the design unremarkable, the low starting price was well-received. [4] The S10 featured a 10.2-inch (260 mm) TFT active matrix 1024×576 or 1024×600 display with an 80 or 160 GB hard disk drive and 512 MB or 1 GB DDR2 Random Access Memory, both of which could be upgraded via a trap door on the bottom of the netbook.
This battery, introduced in 1901, was very common in continental Europe until the 1970s. It usually contains three B cells in series. In Switzerland as of 2008, 4.5-volt batteries account for only 1% of primary battery sales. [89] PP3, 9-volt, or E [90] Radio battery Smoke alarm battery Square battery Transistor battery 006P MN1604
Battery capacity and operating time. Weight and size. The original concept was below 1 kg but some manufacturers tend toward 2 kg (4.4 lb). Noise from CPU fan. Driver availability for the built-in hardware. Operating system choice. Presence of built-in HSDPA, etc., may help to avoid USB dongles.
The first laptops in the IdeaPad Y Series line were showcased in CES 2008. [1] These were the IdeaPad Y710 and Y510 laptops, with 17-inch and 15-inch screens, respectively. [13] The Y series is a line of ordinary laptops with gaming-oriented appearance – a marked difference from ThinkPads. [3]
Its terminal voltage and capacity depend upon its cell chemistry. The National Carbon Company introduced the first D cell in 1898. Before smaller cells became more common, D cells were widely known as flashlight batteries. The U.S. military designation for this battery has been BA-30 since sometime before World War II. [1]
Cell chemistry Charge efficiency Cycle durability % # 100% depth of discharge (DoD) cycles Lead–acid: 50–92 [2]: 50–100 [62] (500@40%DoD [2] [62]) : Rechargeable alkaline: 5–100 [14]
The relationship between the Ah capacity and the discharge rate is not linear; as the discharge rate is increased, the capacity decreases. A battery with a 100 Ah rating generally will not be able to maintain a voltage above 10.5 volts for 10 hours while being discharged at constant rate of 10 amps. Capacity also decreases with temperature.
The volt-ampere (SI symbol: VA, [1] sometimes V⋅A or V A) is the unit of measurement for apparent power in an electrical circuit. It is the product of the root mean square voltage (in volts) and the root mean square current (in amperes). [2] Volt-amperes are usually used for analyzing alternating current (AC) circuits.