How long do the batteries of smartphones last?
Battery performance of smartphones
The Battery power is a variable that manufacturers use to describe, among other things, the general operating time and talk times of smartphones. It is given in hours, among other things. From a technical point of view, the Charge capacity of a battery more precise conclusions about charging cycles and energy supply in ampere-hours. In addition, the capacity is a precise physical specification. However, since complex electronic systems such as smartphones can have very variable energy consumption, it makes sense to assess the performance on the basis of other device-specific properties.
General information about the battery and battery performance
Smartphones usually come with a Lithium-based battery fitted. These are special cells that convert chemical energy into electrical energy. If the cell phone is switched on and in use, the battery discharges because the number of positively charged ions decreases due to contact with electrons. How long it takes for the cell phone battery to discharge depends largely on two factors: the actual capacity in ampere hours (Ah) or milliampere hours (mAh) and the Intensity of use when handling the device. While the charging current is used to assess the performance in the physical context, in the field of entertainment electronics and smartphones the Assessment of the battery performance over the service life established.
Amp-hours and the actual battery life of smartphones
Before buying a new smartphone, Assess battery life, the following manufacturer information is relevant:
- the capacity of the battery in mAh
- the respective average or maximum usage time in hours
Depending on the size of the smartphone and the display and the built-in hardware, different battery sizes are used. The capacity of the battery ranges on average from around 1,500 to 3,000 milliamps. In general, a higher capacity also results in a higher battery performance, but the type and intensity of use can put the information into perspective. The useful life mainly includes the Time in standby mode and the talk timesthat are possible with the mobile phone. A distinction is made here with regard to the active mobile radio standards (2G, UMTS, Wi-Fi).
Which factors negatively affect the battery performance of cell phones and smartphones
Suppose a phablet like the Sony Xperia Z3 with a battery capacity of 3,100 mAh achieves a maximum talk time of 16 hours and a standby time of more than two days. In this case, the battery power is high. Since this is not a static specification, deviations downwards are possible. A frequent use of apps and games, high display brightness and photos with flashlight increase power consumption and ensure that the built-in battery discharges faster. Also wireless connections such as Wi-Fi or Bluetooth drain on the battery. In the long term, the repeated charging processes reduce performance. Persistent high temperatures also have a negative effect on the cell phone battery. After many charging cycles, the battery performance has dropped so far that general operation of only a few hours is possible. Then the battery has to be replaced.
How the battery performance of smartphones can be improved
In order to improve the battery performance or at least keep it constant for a long time, it is helpful to always charge the mobile phone correctly, the Reduce energy requirements (for example with the energy-saving mode that many smartphones have) and not to expose the mobile phone to high temperatures. Those who do not make permanent calls via the mobile phone flat rate and also switch off the smartphone once, save the battery. If the smartphone is in frequent use, it makes sense to choose a model with a high capacity and the resulting higher battery life.
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