Smartphones are getting more sophisticated from year to year, from eye-catching screens to face recognition to professional cameras.
Despite these high-tech upgrades, the battery life does not seem to have been as big as many expected.
This is evident from a recent Washington Post study that found that battery life in many of the leading mobile phones was disadvantageous compared to older models.
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Smartphones are getting more sophisticated every year, but it seems that battery life has not yet reached the thrust that many would have expected with new devices
HOW LONG LOSE MOST BATTERIES?
- iPhone XR – 12 hours and 25 minutes
- Samsung Note9 – 12 hours
- iPhone 8 Plus – 10 hours and 10 minutes
- Pixel 3 XL – 10 hours and 7 minutes
- iPhone XS max – 10 hours and 6 minutes
- Pixel 2 – 9 hours and 57 minutes
- iPhone 8 – 9 hours and 51 minutes
- iPhone X – 9 hours and 30 minutes
- Pixel 2 XL – 9 hours and 26 minutes
- iPhone XS – 9 hours and 9 minutes
- Samsung S9 + – 8 hours and 57 minutes
- Pixel 3 – 8 hours and 28 minutes
- Samsung S9 – 8 hours and 17 minutes
Source: The Washington Post
The Post carried out a series of battery life tests on 13 phones, including the new iPhone XS and Google's Pixel 3.
A meter was used to ensure that each device was set to the same brightness.
Afterwards, the phones automatically had to reload several websites and go through them until the batteries were empty.
Surprisingly, the iPhone XS could not last as long as its predecessor, the iPhone X, and died 21 minutes earlier than the device to the 10th anniversary.
Meanwhile, the pixel 3 has died one and a half hours earlier than the pixel 2.
The only device that seemed to resist the assumption that older phones outlast new phones was the iPhone XR.
The iPhone XR lasted three hours longer than the iPhone X and contradicted the overall trend of the study.
This is probably the case, because Apple has equipped the iPhone XR with a lower-cost LCD screen compared to the OLED screen of the iPhone XS.
LCD screens require less light to operate than OLED displays, so they can burn the battery slower.
The Post conducted a series of battery life tests on 13 phones, including the new iPhone XS and Google Pixels 3. They discovered that the iPhone does not last as long as the iPhone XS XS
This supports the report's findings that phones with more advanced screens, such as As OLED displays, perform worse than those who do not provide this technology.
However, it can depend on more than just the screen technology.
Samsung's Note9, released in August, lasted nearly four hours longer than the S9, which was unveiled in February.
The Note9 has a much larger battery than the previous models.
This is in line with a broader trend in the smartphone industry to introduce larger batteries in smartphones. According to iFixit, battery capacity has doubled in recent years, the Post noted.
Many device manufacturers, however, do not want to rely on this strategy, as lithium-ion batteries reach a turning point where they just can not keep up with the intense smartphone use of users.
"The batteries are improving at a very slow pace by about five percent a year," said Nadim Maluf, CEO of Qnovo, to the post office.
"However, the phone's power consumption is growing faster than 5 percent."
Users may have to choose to buy devices that use high-tech displays for longer battery life, or they may need to connect more frequently if they want the latest and best phone
The batteries will continue to drain as more and more device manufacturers install high resolution screens that require more juice for power consumption, and more complicated apps and use of the phone.
Battery consumption is expected to deteriorate with the introduction of 5G networks.
Users may have to choose to purchase a device like the iPhone XR that fails on high-tech screens for extended battery life, or be forced to connect more often if the latest, best-selling mobile phone is desired.
"Consumers need to prepare for trade-offs," Maluf told the Post.
If this is not the case, you can always rely on other measures to save the battery, eg. For example, reduce screen brightness, use Wi-Fi mode or even Airplane mode instead of LTE connections, and enable power-saving features such as Apple's power-saving mode.
HOW DO LITHIUM ION BATTERIES WORK?
Batteries store and release energy by moving electrons from one end of the battery to the other.
We can use the energy of these moving electrons to do work for us, such as a drill.
These two battery ends are referred to as electrodes. One is called anode and the other cathode.
Generally, the anode is carbon and the cathode is a chemical compound known as metal oxide, such as cobalt oxide.
The last battery component is called the electrolyte and is located between the two electrodes.
For lithium-ion batteries, the electrolyte is a salt solution that contains lithium ions – hence the name.
When you insert the battery into a device, the positively charged lithium ions are attracted to the cathode and move toward it.
Once bombarded with these ions, the cathode becomes more positively charged than the anode, and this attracts negatively charged electrons.
As the electrons begin to move toward the cathode, we force them to go through our device and use the energy of the electrons that "flow" to the cathode to produce energy.
You can imagine it as a water wheel, except that water flows, electrons flow.
Lithium ion batteries are especially useful as they are rechargeable.
When the battery is connected to a charger, the lithium ions move in the opposite direction as before.
Moving from the cathode to the anode will restore the battery for another use.
Lithium-ion batteries can also produce much more electrical power per unit weight than other batteries.
This means that lithium-ion batteries can store the same performance as other batteries, but in a lighter and smaller case.