Nagpur: As mobile phone users, all we want is enough battery life to last the day. Frustratingly, the older the device, the less power it seems to have.
In fact, the amount of battery life our mobiles have on any given day depends on two key factors: how we use them on that particular day, and how we used them in the past.Mobile phones use lithium-ion batteries for energy storage. In this type of battery, lithium metal and lithium ions move in and out of individual electrodes, causing them to physically expand and contract.
Unfortunately, these processes are not completely reversible and the batteries lose their charge capacity and voltage as the number of charge and discharge cycles grows.
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To make matters worse, the electrolyte (electrically conductive liquid) that connects the electrodes also degrades throughout these cycles.
The ability of lithium-ion batteries to store charge depends on the extent of their degradation. This means there is a link between how we handle our devices today and the charge capacity available in the future.
Through a few simple steps, users can minimise this degradation and extend their device’s life.
Control battery discharge
Typical lithium-ion batteries for mobile phones are supposed to retain 80 percent of their charge capacity after 300-500 charge/discharge cycles. However, batteries rarely produce this level of performance, with charge storage capacity sometimes reduced to 80 percent levels within only 100 cycles.
Fortunately, we can extend our future battery capacity by limiting how much we discharge our mobile phone batteries.
With most battery degradation occurring during deep discharge/charge cycles, it is actually better to limit the battery discharge during any one cycle before charging it again
Extend charging times
Many of today’s mobile devices have a fast charge option that enables users to supercharge them in minutes rather than hours. This is convenient when we’re in a rush, but should be avoided otherwise.
Why? Because charging a battery too quickly reduces its storage capacity.
Keep the temperature just right
Fortunately, for most parts of the country, temperatures in Australia sit between 0°C and 45°C (32-113 °F) throughout the year. This is the exact range in which lithium-ion batteries can be stored to maintain optimal long-term charge capacity.
Below 0°C, the amount of power available within the battery system is reduced because of a restriction in the movement of lithium metal and lithium ions within the electrodes and through the electrolyte.
Above 45°C, the amount of power available is actually enhanced.
Use battery-saving modes
Use Airplane mode. This mode typically disables GSM, Wi-Fi, bluetooth and GPS functions on your devices. When turning off all such auxiliary functions, the device will use only up to 5 percent of its usual energy consumption with the screen off.
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—Sanket Wankhede
