Dell Inspiron 20 3048 Me and My Dell - Page 24
Battery, Coin-Cell Battery
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Battery Batteries are mainly classified by their power ratings, such as 45 WHr, 65 WHr, and so on. The battery allows you to use your device when it is not connected to a power outlet. The life cycle of the battery is the number of time it can be discharged and recharged without affecting the operating time significantly. After the battery life-cycle reaches its end, you must replace the battery. Depending on the computer model, the battery on your computer may be user replaceable or may require a Dell service technician to replace. NOTE: High-capacity batteries generally have a longer life-cycle, since you need to charge high-capacity batteries less often compared to low capacity batteries. NOTE: For tips on improving the battery life, see "Improving Battery Life". Coin-Cell Battery Coin-cell battery provides power to the Complementary Metal‑Oxide Semiconductor (CMOS) chip while the computer is turned off. The CMOS chip contains the time, date, and other configuration information about your computer. Under normal usage conditions, the coin-cell battery can last for several years. The factors that affect coin‑cell battery life are type of system board, temperature, the time for which the computer is powered off, and so on. 24 Battery