iPhone Battery and Performance


About lithium-ion batteries

iPhone batteries use lithium-ion technology. Compared with older generations of battery technology, lithium-ion batteries charge faster, last longer, and have a higher power density for more battery life in a lighter package. Rechargeable lithium-ion technology currently provides the best technology for your device. Learn more about lithium-ion batteries.

How to maximize battery performance

“Battery life” is the amount of time a device runs before it needs to be recharged. “Battery lifespan” is the amount of time a battery lasts until it needs to be replaced. One factor affecting battery life and lifespan is the mix of things you do with your device. No matter how you use it, there are ways to help. A battery’s lifespan is related to its “chemical age,” which is more than just the passage of time. It includes different factors, such as the number of charge cycles and how it was cared for. Follow these tips to maximize battery performance and help extend battery lifespan. For example, keep iPhone half-charged when it’s stored for the long term. Also avoid charging or leaving iPhone in hot environments, including direct sun exposure, for extended periods of time.

When batteries chemically age

All rechargeable batteries are consumable components that become less effective as they chemically age.

As lithium-ion batteries chemically age, their ability to hold a charge diminishes. This may result in shorter amounts of time before a device needs to be recharged. In addition, a battery’s ability to provide power quickly may decrease. In order for a phone to function properly, the electronics must be able to draw upon instantaneous power from the battery. One attribute that affects this instantaneous power delivery is the battery’s impedance. A battery with a high impedance is unable to provide power quickly enough to the system that needs it. A battery’s impedance can increase if a battery has a higher chemical age. A battery’s impedance will temporarily increase at a low state of charge and in a cold temperature environment. When coupled with a higher chemical age, the impedance increase will be more significant. These are characteristics of battery chemistry that are common to all lithium-ion batteries in the industry.

When power is pulled from a battery with a higher level of impedance, the battery’s voltage will drop to a greater degree. Electronic components require a minimum voltage to operate. This includes the device’s internal storage, power circuits, and the battery itself. The power management system determines the capability of the battery to supply this power, and manages the loads in order to maintain operations. When the operations can no longer be supported with the full capabilities of the power management system, the system will perform a shutdown to preserve these electronic components. While this shutdown is intentional from the device perspective, it may be unexpected by the user.

Preventing unexpected shutdowns

With a low battery state of charge, a higher chemical age, or colder temperatures, users are more likely to experience unexpected shutdowns. In extreme cases, shutdowns can occur more frequently, thereby rendering the device unreliable or unusable. iOS 10.2.1 (released January 2017) includes updates for previous models of iPhone to prevent them from unexpectedly shutting down. This includes a feature for iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, and iPhone SE to dynamically manage the instantaneous performance peaks, only when needed, to prevent the device from unexpectedly shutting down. This capability was also extended to iPhone 7 and iPhone 7 Plus with iOS 11.2, and we will continue improving our power management feature in the future. This feature’s only intent is to prevent unexpected shutdowns so that the iPhone can still be used. This power management feature is specific to iPhone and does not apply to any other Apple products.

This power management works by looking at a combination of the device temperature, battery state of charge, and battery impedance. Only if these variables require it, iOS will dynamically manage the maximum performance of some system components, such as the CPU and GPU, in order to prevent unexpected shutdowns. As a result, the device workloads will self-balance, allowing a smoother distribution of system tasks, rather than larger, quick spikes of performance all at once. In some cases, a user may not notice any differences in daily device performance. The level of perceived change depends on how much power management is required for a particular device.

In cases that require more extreme forms of this power management, the user may notice effects such as:

  • Longer app launch times
  • Lower frame rates while scrolling
  • Backlight dimming (which can be overridden in Control Center)
  • Lower speaker volume by up to -3dB
  • Gradual frame rate reductions in some apps
  • During the most extreme cases, the camera flash will be disabled as visible in the camera UI
  • Apps refreshing in background may require reloading upon launch

Many key areas are not impacted by this power management feature. Some of these include:

  • Cellular call quality and networking throughput performance
  • Captured photo and video quality
  • GPS performance
  • Location accuracy
  • Sensors like gyroscope, accelerometer, barometer
  • Apple Pay

Get further assistance

For a low battery state of charge and colder temperatures, power management changes are temporary. If a device battery has chemically aged far enough, power management changes may be more lasting. This is because all rechargeable batteries are consumables and have a limited lifespan, eventually needing to be serviced or recycled. If you are impacted by this and would like to improve your device performance, replacing your device battery can help.

Source: https://support.apple.com/en-au/HT208387


How To Solve Galaxy S6 Bluetooth Issue

Galaxy S6, one of the best device from Samsung came with various excellent features and there are very few smartphones in the market which can compete with this phone. But some owners of this great phone started complaining about several issues that they are facing with the phone. Galaxy S6 Bluetooth issue is one of them. But it does not indicate that this is a defective handset. The good news is that various ways are there following which this problem can be solved without replacing the phone or running to the technician. Here we will discuss the possible ways to fix the Bluetooth issue on your Galaxy S6.


Galaxy S6


Ways To Solve Galaxy S6 Bluetooth Issue

Method 1

The first method is to simply switch the Bluetooth off and then on again. To do so, head towards Settings and scroll to the connection tab. Next, select Bluetooth and toggle it to off. Wait for few seconds and on it again to see if the issue is resolved then.

Method 2

If the above method does not work out for you, then again go to the Bluetooth option > Connection tab and forget the device or devices that have issues. Once the process is completed, reconnect the device and check.

Method 3

Clearing the cache to remove the Bluetooth data is another helpful step to get rid of the issue. Temporary data is stored in the cache for better performance at the time of switching between apps. But too much of cache can give rise to various issues so it is better to clear it. This problem usually occurs when you try to connect to your car Bluetooth devices. However, here are the steps:

  • Select the App icon from the home screen of your Galaxy S6
  • Tap the Settings icon
  • Hit Application Manager
  • Swipe the screen left or right in order to find All Tabs
  • Select Bluetooth
  • Tap Clear Cache
  • Select Clear Data
  • Choose Ok
  • Now restart your phone

 Method 4

Next, you can boot the device in safe mode to see if it is any third party app is creating the issue. Safe mood will disable all the third party apps. Here is how to boot the device in safe mode.

  • Power off your Samsung Galaxy S6.
  • Next, press and hold the Power and Volume down button together for few seconds.
  • As the device boots up, release the power button but continue holding the volume down key.
  • After few seconds, safe mode will be entered and you will notice safe mode in the bottom left a corner of the screen.

If everything works fine in the Safe mode, it means that one of the apps is causing the issue. What you should do is to delete third-party apps one by one until the problem is resolved (start with the applications you installed recently), or perform a factory data reset.

Method 5

The final method is to put the phone in recovery mode and then wipe the cache partition if other methods fail to solve the Galaxy S6 Bluetooth bug. Here is how to do that:

  • Turn off your Samsung Galaxy S6
  • Press Home button, Power button and Volume Up button altogether and hold them
  • Leave the buttons when you see Android recovery system screen
  • Now you have to use the Volume Down button to choose options such as Wipe cache partition and use Power key to select that option.
  • Next, restart your phone and try to connect with a Bluetooth device which is in range and see if the Bluetooth issue is fixed.

Galaxy S6 Bluetooth problem

Here Are The Steps To Pair A Bluetooth Device With Your Galaxy S6

One thing you should know is that the instruction manual of that particular Bluetooth device which you want to pair with your phone should be referred. Check which code is needed to pair the device, 1234 or 0000 are  used frequently.

Then you have to configure the device in order to search for other Bluetooth devices. You will see ‘Next’, click on it to see further instructions.

  • Go to the Start screen of your phone
  • Tap on Apps
  • Choose Settings
  • Touch Bluetooth
  • Now enable Bluetooth
  • The list of Bluetooth devices that are within the range of your Galaxy S6 will be shown
  • The device that you want to connect with your phone needs to be selected
  • If you do not see the device in the list then ensure that Bluetooth is activated on that device and the device is within the range of your phone
  • Tap REFRESH on your phone
  • If a screen with code appears, verify the code and click on Ok
  • If you do not see that screen, then type in the PIN code of the selected device and tap Ok. You will get the code in the instruction manual of the Bluetooth device which is usually 1234 or 0000
  • The connection should be made now
  • The pairing is completed and you can go back to the start screen

source: https://www.technobezz.com/how-to-solve-galaxy-s6-bluetooth-issue/


How to instantly be more productive?

Do you struggle to get things done?

If you have this problem, it’s NOT your fault. And it’s not a matter of “just trying harder next time.” If the solution was willpower alone, you would’ve fixed this problem a long time ago!

Focus and motivation actually come from your dopamine levels.

What’s dopamine? It’s a chemical that tells our brain to do things. Without dopamine, your brain turns to mush and you forget how to focus. If you struggle with productivity, lack of dopamine is probably your main culprit.

The good news is, you can easily and quickly regain dopamine by doing the following things:

Explore new stuff. Your brain is wired for innovation. It’s fascinated by new things! So take time to explore stuff you don’t know on Wikipedia. Try a new hobby. Check out a new TV show. You’re not obligated to learn a whole new language, but take 10 minutes a day to try something new. Boredom literally kills your brain and makes you dumb and unproductive.

List your small tasks. Dopamine isn’t picky. It gets released into your body whenever you accomplish something, and it doesn’t care whether that task is big or small. That’s why you feel so good when you check stuff off a list no matter how silly. So make a note of all your to dos, and proudly check them off when you’re done. The dopamine hit will keep you focused and motivated.

Listen to music. Why do you think music is so popular? It’s literally food for your brain. Just make sure it’s music you enjoy.

Increase your tyrosine. Tyrosine makes dopamine, so you need a lot of it. Good sources of tyrosine include almonds, cheese, soybeans, beef, and eggs.

Exercise … even a little bit. Everybody says exercise reduces your stress and makes you a healthier person, and it’s true. But your brain actually rewards exercise by releasing endorphins and dopamine, which make you happy and more productive. Get up from your desk right now and take a walk. Your body and brain will thank you, and you’ll get more done today.

Track your wins. Your brain responds to streaks the same way it does with checking off a checklist: dopamine release! If you succeed at getting to the gym every day this week, mark it on your calendar.

Make cool stuff. Ever notice that zen state you get whenever you’re totally immersed in your work? Sometimes we call it “the zone” or “being in the flow.” Whatever you call it, it feels awesome. And yes, it releases dopamine. If you’ve been meaning to get back into an old hobby like painting, photography, or repairing stuff, now’s a good time to do it.

Meditate. How cool is your brain? Even doing nothing from time to time will release dopamine! Seriously though, your brain works hard and needs regular breaks so it can recover.

Dopamine’s addictive but in a good way. Let it serve you well and you’ll be able to accomplish a lot of cool stuff!

How to prolong the life of a lithium-ion battery technically explained

BT Waves Bluetooth Headset uses lithium-ion polymer battery.

Here is an extraction on how to prolong the life of a lithium-ion battery, with great technical explanation.

1. Avoid full discharges and charge the battery more often between uses, but do not keep it in fully charged status for an extended time.

Partial discharge on Li-ion is fine. A partial discharge reduces stress and prolongs battery life. There is no memory and the battery does not need periodic full discharge cycles to prolong life. Similar to a mechanical device that wears out faster with heavy use, the depth of discharge (DoD) determines the cycle count of the battery. The smaller the discharge (low DoD), the longer the battery will last.

Be aware though keeping the battery in fully charged status for an extended time can be more harmful than cycling.

2. Avoid exposing the battery to high temperature.
Lithium-ion suffers from stress when exposed to heat. Elevated temperature (above 30°C or 86°F) hastens permanent capacity loss.

3. For optimal performance, charge the battery at a voltage of 3.92V/cell.

High charge voltage also stresses lithium-ion batterys. For most Li-ion a voltage above 4.10V/cell is deemed as high voltage. Most Li-ions charge to 4.20V/cell, and every reduction in peak charge voltage of 0.10V/cell is said to double the cycle life. On the negative side, a lower peak charge voltage reduces the capacity the battery stores. In terms of longevity, the optimal charge voltage is 3.92V/cell. Battery experts believe that this threshold eliminates all voltage-related stresses; going lower may not gain further benefits but induce other symptoms.

(Technical source: http://batteryuniversity.com/…/how_to_prolong_lithium_based…)

How do BT Waves Bluetooth headphones achieve the noise cancelling effect?

Noise-cancelling headphones come in either active or passive types. BT Waves Blurtooth headphones use active noise cancelling technology that adds an extra level of noise reduction by actively erasing lower-frequency sound waves. The headphones actually create their own sound waves that mimic the incoming noise in every respect except one: the headphone’s sound waves are 180 degrees out of phase with the intruding noise waves.

The sound wave coming from BT Waves noise-cancelling headphones and the one associated with the ambient noise have the same amplitude and frequency, but their crests and troughs (compressions and rarefactions) are arranged so that the crests (compressions) of one wave line up with the troughs (rarefactions) of the other wave and vice versa. In essence, the two waves cancel each other out. The result: the listener can focus on the sound coming from the headphones.

BT Waves noise cancelling Bluetooth headphones

Get your personal 20% off coupon for BT Waves Noise Cancelling Bluetooth Headphones here.

4 tips for extending lithium-ion battery life

1. Keep your batteries at room temperature

That means between 20 and 25 degrees C. The worst thing that can happen to a lithium-ion battery is to have a full charge and be subjected to elevated temperatures. So don’t leave or charge your mobile device’s battery in your car if it’s hot out. Heat is by far the largest factor when it comes to reducing lithium-ion battery life.

2. Allow partial discharges and avoid full ones (usually)

Unlike NiCad batteries, lithium-ion batteries do not have a charge memory. That means deep-discharge cycles are not required. In fact, it’s better for the battery to use partial-discharge cycles.

There is one exception. Battery experts suggest that after 30 charges, you should allow lithium-ion batteries to almost completely discharge. Continuous partial discharges create a condition called digital memory, decreasing the accuracy of the device’s power gauge. So let the battery discharge to the cut-off point and then recharge. The power gauge will be recalibrated.

3. Avoid completely discharging lithium-ion batteries

If a lithium-ion battery is discharged below 2.5 volts per cell, a safety circuit built into the battery opens and the battery appears to be dead. The original charger will be of no use. Only battery analyzers with the boost function have a chance of recharging the battery.

Also, for safety reasons, do not recharge deeply discharged lithium-ion batteries if they have been stored in that condition for several months.

4. For extended storage, discharge a lithium-ion battery to about 40 percent and store it in a cool place

Storing the battery fully charged means oxidation of lithium-ion is at its highest rate. Storing lithium-ion batteries at 40 percent discharge and in the refrigerator (not freezer) is recommended


(source: techrepublic.com)