The gradual degradation of battery takes place with every charge-discharge of the accumulator during the mobile phone’s exploitation. This process is inevitable and it is not connected with the model of the smartphone, its cost or functionality. The lithium-ion and lithium-polymer batteries are used in modern smartphones. Lithium batteries lose about 50% of their capability after 500 charges and discharges. It is commonly said that it’s normal. During 2-3 years of constant work they are running out of their resources. And there is a logical question: for how long the battery’s capacity will work and when should we prepare for changing it?</p>
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