Battery | Marten IT Blog

Does leaving the smartphone always plugged in damage the battery?

A question that is often asked concerns the charging of one's mobile devices. Should you let the battery deplete until it cannot sustain operating the device, does it harm the battery to be left charging etc.
Charudatta Galande provided an answer on quora.com to this question.
Read his response at:

Apple offering credit for iPhone batteries replaced before discounted repair program

Apple added a feature into iOS 11 the ability to reduce power requirements by slowing down the phone to avoid sudden shutdowns when the battery had reduced in performance due to age. They initially allowed for cheap battery replacements but have now offered a credit for older phones as well.
It was interesting to see this unfold as Apple's intention was meant to assist users of older devices to avoid having unwanted shutdowns when the battery was operating at substandard levels. Of course the ambulance chasers saw an opportunity for money for nothing.
The reality is that batteries lose their ability to hold a charge the older they are and after a finite number of recharges. So those seeking damages for a probably undetectable slow down are leeches when in reality, Apple was doping them a favour.
Apple since provided the ability to see the state of the battery and you will be able to choose between changing the battery at a heavily discounted price, allowing the phone to slow down to prevent sudden shutdowns, have an unreliable device or perhaps just get a new phone.
With the current iOS you can check the state of your battery. Go to Settings/Battery/Battery Health. It will give you information about the maximum capacity of your battery. You can also see what is consuming the battery's charge.

See AppleInsider for the full article.

The five things that kill your iPhone's battery the fastest

Although the battery in an iPhone can last a considerable amount of time, certain factors can deplete your battery quicker than usual.
The main factors are:
  • Temperature
  • Screen brightness
  • Weak mobile phone coverage and weak WiFi
  • Rogue apps
  • Too many notifications
There is an article on Zdnet that provides a little further information. See https://goo.gl/Fw2dSr

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