GETTING MORE LIFE OUT OF YOUR BATTERY
Posted by Dada K. on
“Battery life is determine not only by time, but by charge/discharge cycles”
- A Wise Human
Like most new things, your shiny phone was working to your satisfaction for a while. No complaints. But now, barely a year after you bought your phone, the battery seems to die rather very quickly. You have optimized your device, removed some apps and went through some of the suggestions in previous blog post, “Getting more out of your battery between charges”, but you still do not see much improvement. At this point, I would be willing to bet that your battery is at the end of its life. It has become a casualty of a life cut too short.
There is nothing you can do about your battery when it reaches end-of-life, except to dole out the cash to replace it (if you have an expensive phone), or buy a new phone altogether. But if you stay with us through this tips session, you will be able to do something about the battery in your new phone, or the new battery in your phone, before you reach this point.
Most smartphones are powered by Lithium-ion-based battery for a very good reason. They are light, have very high power density (which means compared to other battery types of the same weight, it packs more power), and are relatively stable. These properties make it the number one choice for consumer electronic devices, they must however be treated very well if they are to perform their function well.
Note that effectively, battery life is measured by the number of “complete” charges (or discharges) it can withstand before the maximum capacity drops to under a certain percentage (typically, 80%). Before we proceed, here are some definitions.
Complete discharge (100%)
When a fully charged battery is used until it completely dies.
Partial discharge (!100%)
( FUN #1 – can you read out what is in the brackets without using the words “exclamation,” or “opposite.” )
When battery (whether fully charged or not) is used but not to the point when it dies.
A complete cycle
You are right if you think “a complete cycle” is when a fully charged battery is discharged (used) until it dies, however that is not the only way to define a complete cycle. For a more broader definition, A complete cycle is when the sum of discharges equals to 100%. For example, if I use 30% and 25% on separate times, then between those two times, I have discharged my battery by 55%. Assume I recharge my battery before it dies and I use 45% of its charger, then between these three times, I have used 30% + 25% + 45% = 100% . This is one complete cycle.
The life-time of lithium-ion batteries generally ranges from 200 to 300 cycles depending on battery quality.
Lithium Battery Limitation
In order not to bore you with a long list of instructions, we will actually make it short and fun. We are going to look at the do’s and don’ts Batteries (though we are not going list them under a big bright heading of “DOs” and “DON’Ts).
(FUN #2, From the list below, you figure out which is which. Is it a “DO” or a “DON’T”?)
Note: Besides the number of discharge cycles, the life of a battery is also affected by the cumulative effect of all the other types of stress it experiences, and some additional factors. We will look at some of the common ones.
Fast charging -
Fast charger are for phones designed to support fast charging. Using fast charger on a phone not designed for fast-charging could shorten the life of the battery.
- Continuous improvement - Update your phone to the latest OS version available to you. There are always ongoing improvement that may help reduce your battery consumption.
- Don’t charge your phone for longer than needed. It is better to unplug when charging is complete. Phone tends to warm up when plugged in.
- Read HOW TO MAKE YOUR BATTERY LAST LONGER BETWEEN CHARGES. It could help you reduce power consumption and consequently, battery life.
If you are able to follow the above tips, you will help extend the lifetime of your battery.
Don't hesitate to ask questions or post your comments.
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- Tags: battery, battery life, charge, charges, complete discharge, cycles, discharge, fast charging, lithium-ion, long-life, overcharging, Partial discharge, phone battery, smartphone, tips
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