What happen when we Overcharge the mobile phone battery ?

The phone battery is in the solid state. It consists of lithium and pondered carbon. When we use the phone the lithium ions in the battery converts the chemical energy to electrical energy. This electronic circuit in the phone utilizes the electrical energy and perform the required function. When the total chemical energy is utilized then the phone gets low battery, then we charge the phone using the charger then the chemical energy will be restored in the battery. Thus the cycle continues.

While these conversations some amount of energy is dissipated in the form of heat, this is the universal law physics. In some Ordinary mobile phones, when we overcharge their batteries the carbon element in the battery gets heated and when it goes on the battery may explode. To prevent this condition some modern phones have installed some sensor circuits which will sense the battery charging level and makes the charging circuit open. In such Condition the charger gets damage. The better way is to plug out the charger when it is full. As this proverb "Prevention is better than Cure".

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