Does charging mobile phones, laptops and EVs to only 80% extend battery life?
Does charging mobile phones, laptops and EVs to only 80% extend battery life? Electronic devices and gadgets such as smartphones, laptops and electric vehicles (EVs) are becoming an integral part of modern life. But the ' lithium-ion battery ' at the heart of all these devices has one major drawback, which is the problem of wear and tear over time. There has been a discussion in the technology world for years: "Don't charge the battery more than 80% and don't let it drop below 20%. " Is this really effective? Today we are discussing this topic. The 20-80 rule and the science behind it The simple meaning of this rule is to limit the charge of your device to between 20% and 80%. To understand how lithium-ion batteries work, a 'rubber band' can be taken as an example. When a rubber band is stretched to its limit (100% charge) or left very loose (0% charge), its elasticity gradually loses its elasticity. Lithium ions move between the cathode and anode in ...