Tag: smartphone

Which type of battery for smartphone is better: Li-Ion or LiPo ?

Did you ever think about why your phone works at all?
Probably not. But, if you think about it, all portable gadgets rely on a battery to keep ticking – and some have better battery life than others. That’s why we’re going to take a peek at what keeps your phone ticking and why some batteries do better than others.

On the basis of chemistry used for ions carrying electrolyte material, Lithium battery can be classified into Lithium ion and lithium Polymer.

Lithium ion battery uses liquid lithium ion as electrolyte while lithium polymer use solid or gelatin like polymers as electrolyte.

Lithium ion batteries have high energy density and cost less than lithium polymer. Lithium polymer batteries are light weight and have improved safety . However their cost is high (30% average) as compared to lithium ion. Also the the energy density of Li-Polymer battery compared to Li-Ion Batteries is quite less. Lithium ion batteries tend to lose charge with ageing even when not used, while Li- Polymer batteries retain charge for a longer period even while ageing.

This flow chart will clear the doubts:

Lithium Ion Battery vs. Lithium Polymer Battery

Lithium polymer is more advanced but still have its own pros and cons and Lithium ion may be old but upgrading everyday with technology . so, we cannot say that lithium ion or lithium polymer is best for smartphone battery.

Considering the requirements of the smart phone in terms of weight, shape, size, energy density, usage etc , we have to decide, which is best in the case.

Why we need a polymer lithium-ion battery ?

Lithium-ion battery (Li-ion) is widely used in the communication and electronics industries as a high-efficiency energy carrier, especially for personal communication tools such as mobile phones and PDAs. It was first widely used in Japan after commercialization in 1992. Especially with the use of mobile phone communication tools, lithium batteries are gradually accepted by the majority of users due to their advantages of light weight, large capacity and environmental protection.

However, in the past ten years, with the rapid development of communication technology, mobile phone color screen technology, MMS technology, Bluetooth technology and camera technology have appeared successively, which puts higher requirements on the capacity, volume, weight and electrochemical performance of the battery. Traditional liquid lithium batteries have become increasingly unable to adapt to new demands. The emergence of a new polymer lithium-ion battery (Li-Polymer) caters to this demand. Polymer lithium battery is a third-generation lithium-ion battery developed on the basis of the original steel shell and aluminum shell battery. It is lighter, thinner and has higher energy density. It is accepted by domestic and foreign communication terminal manufacturers and design companies.

The fundamental difference between a polymer lithium-ion battery and a liquid lithium-ion battery is that the electrolytes used in the two are different. The electrolyte of a lithium polymer battery is solid in appearance and is called a polymer solid electrolyte. This electrolyte is a type of polymer material which is in a solid state but which dissolves the supporting electrolyte like a liquid and can undergo ion migration. Liquid lithium, as the name suggests, electrolytes are liquid. Due to the fluidity of liquids, changes in external environmental factors such as high temperatures have a greater impact than polymer lithium-ion batteries.

A lithium-ion battery or Li-ion battery is a type of rechargeable battery in which lithium ions move from the negative electrode to the positive electrode during discharge and back when charging.

They are common in home electronics. They are one of the most popular types of rechargeable batteries for portable electronics, with a high energy density, tiny memory effect and low self-discharge. They are used in military, battery electric vehicle, and aerospace applications.

A lithium polymer battery, or more correctly lithium-ion polymer battery is a rechargeable battery of lithium-ion technology using a polymer electrolyte instead of a liquid one.

These batteries provide a higher specific energy than other lithium battery types and are being used in applications where weight is a critical feature — like tablet computers, cellular telephone handsets, or radio-controlled aircraft.

Although the lithium-polymer battery is sleeker and thinner, lithium-ion batteries have a higher energy density and cost less to manufacture.

Finally, with new chemicals and such being added to these batteries often, who knows which will come out on top in the long run.

Are Magnets Bad for Phones?

Magnets have long existed in the smartphone and accessory industry. But magnetic accessories weren’t much seen back then. After Apple introduced the iPhone 12 with built-in magnets in 2022, magnetic phone accessories quickly gained popularity. But the question remains: Are magnets bad for phones?

The simple answer is that the average household magnet will not cause substantial interference. Scientific studies and real-life tests indicate that magnets used in everyday magnetic accessories, such as magnetic car phone holders and magnetic chargers, are unlikely to cause any significant damage. So, it’s totally fine to use magnetic accessories. How to Safely Use Magnets with Phones

With such importance placed on magnets in phones and daily accessories, it’s crucial to know how to protect them from potential harm. 

Essential Dos and Don’ts for Using Magnets with Phones

Let’s start with the dos. Magnets can be beneficial when used with phones in the right way. 

Magnetic phone cases are usually safe, as are magnetic phone mounts and wallets. These magnets are generally designed to have minimal interference with the device’s functionality. 

However, it’s important to be aware of the don’ts when it comes to using magnets with phones. Don’t place strong magnets near your phone. Magnets can interfere with the operation of the phone’s internal components and potentially cause irreparable damage. So, steer clear of placing your phone directly on magnetic surfaces or attaching powerful magnets directly to the phone itself.

Choosing Compatible & Certified Magnetic Accessories

Compatible and certified magnetic accessories undergo rigorous testing to ensure they do not interfere with the phone‘s functionality. These accessories are specifically designed with shielding materials or accurate magnet placement to protect the phone from potential damage and malfunctions. 

To determine if a magnetic accessory is compatible and certified, look for reputable brands that adhere to industry standards and regulations. Check for certifications such as the MFi (Made for iPhone) certification or Qi standard. Reading product reviews and seeking recommendations from trusted sources can also help you make an informed decision.Using Proper Magnets

Magnetic phone cases and accessories use magnets to stick your phone in a place for a convenient hands-free experience or stable wireless charging. That said, it doesn’t necessarily mean the stronger the magnetic force is, the better. 

Just ensure your phone won’t fall off when you use those magnetic accessories. For instance, using a magnetic phone mount in your car can provide a hands-free solution for navigation and answering calls. Your car mount should be strong enough to keep your device in place even on bumpy roads. Over-strong magnets will make pulling your phone from the mount difficult and may even cause interference with the device’s performance.  

Proper Mounting Techniques: Placement & Alignment for Optimal Security

When it comes to mounting your phone, first consider placement. 

Choose a location that offers easy access without obstructing your view in a car. Place the mount on the dashboard or air vents for easy reach and minimal distractions while driving. If you want to install the mount on the windshield, make sure it’s not against the local rules. Check out more tips on selecting the best car mount here. 

Also, ensure your phone is aligned properly. The biggest upside of magnetic mounts is that they auto align with your phone. When you move your phone over the mount, it automatically clicks into place. Sometimes, you may need to move it around a bit to hear the “click”. Additionally, some car mounts can be adjustable, allowing you to position your phone at the most comfortable angle.  

what you can do to alleviate it Hand Pain by your Smartphone

In 2024, Americans spent an average of 5 hours and 16 minutes per day on their phones, according to the data management firm Harmony Healthcare IT. That was up 14 percent from the year before.

Too much time with your phone can exact a physical toll. Just 20 to 30 minutes without any change in your position can strain various parts of the body, says Rachel Prusynski, PhD, an assistant professor in the department of rehabilitation medicine at the University of Washington and a spokesperson for the American Physical Therapy Association. And if you have preexisting conditions—an injury or arthritis, for instance—smartphone overuse may aggravate your symptoms. So yes, discomfort from using a smartphone is definitely a thing. Here are some conditions to watch out for—and what to do about them. How Phone Use Can Affect Your Body

Duretti Fufa, MD, a hand and upper extremity surgeon at the Hospital for Special Surgery in New York City, confirms that using a smartphone for too long can lead to pain, tendonitis, and pinched nerves in your fingers, hands, and elbows. If you already have joint problems such as arthritis or tendon and nerve conditions like carpal tunnel syndrome and tendonitis, you’re more prone to experiencing negative effects.

Repetitive movements such as tapping on your screen to text or play games can also increase discomfort in your thumb and forearm, says Paul Ritchey, DrPH, an ergonomist at Consumer Reports.

Neck and shoulder pain are also common. Dana Keester, MS, another CR ergonomist, says neck discomfort can stem from the looking-down posture most people adopt when using their phones, which puts excessive stress on the muscles that support the neck. What can also cause discomfort in your shoulders and neck is holding your phone up to your ear for a sustained period of time while making a phone call. 

You might also feel pain in your lower back if you’re using your phone and sitting for a long time in an unsupported posture—if you’re slouched in your chair, for instance. And though we’re focused here on musculoskeletal pain, using your smartphone for too long (especially in a dark room) can cause eyestrain, Ritchey says.How to Prevent Pain

To mitigate pain, you need to pay attention to both how long you’re using your phone and how you’re using it—in other words, your posture. Experts suggest that these steps can help.

Take breaks. The most significant action you can take is to spend less time on your smartphone, Fufa says. You can achieve that by cutting down on excessive usage and taking breaks from your phone every 15 to 20 minutes. 

Try not to use your phone in one static, prolonged position. “Your next posture is your best posture,” Ritchey says. When you’re on your phone, shift the way you’re holding the device so that your hand isn’t locked in one position for a sustained period. You can also try switching between your right and left hand or using two hands instead of just one when holding your phone.

Stretching in between using your phone can help prevent skeletal muscular discomfort. One of the stretches Ritchey recommends is the wrist flexion and extension stretch: With your arm fully extended, rotate your palm so that it’s facing up and gently pull your hand toward you for about 15 seconds. Then turn your hand over so your palm is facing down and gently pull your hand toward you for about 15 seconds, and repeat this exercise two to three times. Ritchey says it’s also helpful to walk around and shake any body parts you were using while on your phone.

Adopt the right posture. A 2024 study published in the Journal of Back and Musculoskeletal Rehabilitation found that there’s a connection between the angle of your wrist and elbow when you’re using your smartphone and pain and discomfort. 

To avoid nerve pain, to make sure you keep your wrist in a straight, neutral position when you’re holding your phone. Bending or flexing your wrist could contribute to pinched nerve pains. 

When possible, engage the larger groups of muscles in your arm because they’re less likely to tire. For instance, when you’re tapping your phone’s screen, try moving your whole hand instead of flexing and tapping with just your fingers.

Go smaller and lighter. The weight of your smartphone can also play a role in your pain. According to a 2024 study published in BMC Public Health, if your smartphone is heavier, you’re more likely to experience discomfort in your hand after prolonged use.

If you’re buying a new smartphone, opt for a device that’s smaller or lighter. That might be tricky, though, because phones have steadily been getting larger in recent years. If you want to avoid the biggest phones, steer clear of iPhone Max and Plus models, and Samsung’s Ultra models. The smallest smartphone recommended by CR is currently the 2022 iPhone SE. You can also find a small model by sorting phones by their screen size in our cell phone ratings.

But if you’re not likely to switch phones anytime soon, I suggests trying a phone grip like a PopSocket or a smartphone stand or mount. 

Go hands-free. When you’re on a call, consider using the speaker phone option, earbuds, or a headset to eliminate the need to hold your phone up to your ear for a long period of time.

Another handy feature is voice-to-text, which eliminates the need to physically type on a phone, lowering the chance you’ll develop discomfort.

Days after following some of these steps, you fingers will felt less stiff. Remember try to take breaks, and also make a concerted effort not to bend your wrist when you hold you phone, which has reduced the pain when you used to feel in you wrist. 

How to Delay Battery Degradation When Charging Overnight

Limiting the time spent at full charge

Method 1: The Committed Routine Manager

Plan your nighttime charging so it’ll be full before you sleep. In other words, avoid charging phone overnight altogether. If you have a fixed bedtime, plug it to charge 2 hours (or less, depending on charging speed and battery level) before that. Perfectly battery-healthy but inconvenient.

You have to either not use at all or use while charging, which may heat up your phone if heavy-duty apps are involved. And it isn’t suitable for anyone who doesn’t have enough time to fully charge before sleep (e.g., working late, party, etc).Method 2: The Slow And Steady

Swap in a slow cable/charger without fast charging. It’ll help to lower the fast charging heat and time spent at full charge. Your phone might still spend a few hours at full charge, but it’ll be much lesser.Method 3: The Uncommitted But Carefree

Unplug when you wake up … if you do wake up dead in the night from nightmares or for bathroom. Or if you are an early riser. It isn’t much, but it at least helps with minimal effort.

You wouldn’t set an alarm 2 hours into sleeping just to unplug, right?

Method 4:smart charging solutions
Alternatively, opt for a smart charging cable that cuts off power automatically at full charge. That way, you’ll get to minimize the degradation while getting the smartphone runtime and sleep you need.BONUS TIP: Use a quality wall charger!

Cheap charger is cheap for a reason. Don’t skimp on that! You’ll risk damaging your phone because cheaper charger may not provide a stable voltage output throughout the charging.Reducing heat while charging

1.Charge Where Heat Dissipates

Don’t ever charge on a bed, or worst, under the pillow. Unless only for a short while. Even so, you’ll notice how fast it heats up. And resist your desire to stack objects on top like it’s Jenga time.

What makes a good charging spot? Flat and sturdy surfaces like table, bedside cabinet, and floor. Bad spots will be those that are cushiony and trap heat; couch, blankets, and mattress, you name it.

2.Charge Your Phone Naked

No. Not you, but your phone. Yes, phones are fragile. But those thick casings you wrap your phones in trap heat and slow down cooling. Imagine dressing in a winter jacket while exercising. Nonetheless, this doesn’t apply to all as some aren’t as dense, e.g., phone skins. Try to notice how hot your device gets while charging in certain casings.

3.Use Non-Fast Charger

Again, fast charging cooks up battery quickly. So switch to a normal, or better yet, slow charger for overnight charging. Unless you’re the type that only sleeps a short few hours.

4.Charging Is Also Resting

Let your phone be app-free while it’s juicing up. Though the heat isn’t much if you’re using light apps like Messenger or Instagram. GPU and graphics-heavy apps (e.g., games) will generate much more heat, and worse if the phone’s charging.Wrapping Up

Is charging phone overnight bad? Not a concern if you seasonally upgrade to a new phone. Otherwise, your daily convenience may return to bite you in a year or so, in the form of shortened battery lifespan; and it’s all downhill thereafter until you send it to a repair shop or a dealer for a battery replacement.Different ways to reduce overnight charging degradation:

1.Plan your charging before bedtime

2.Use a slow charger

3.Unplug as soon as you wake up

4.Use an auto cutoff charging cable/power outlet

5.Charger overnight on a cool and flat surface

6.Remove thick phone casing before plugging in

How to Unlock Android Phone Password Without Factory Reset

These days, it seems like more and more of our lives are contained in our smartphones. These devices are incredibly versatile tools that we use for everything from social media and work emails to GPS and fitness tracking.
The more we use our phones for, the more important it becomes to ensure the security of the information they contain. To that end, manufacturers have come up with various and ever-evolving ways of checking users’ identity and locking out intruders.
Unfortunately, these vital safety measures can become a hassle if we forget our password, PIN or the pattern we use to unlock our phones. In such situations, there are a few things you can try before resorting to a full-scale factory reset.
The Android Smart Lock featureAndroid phones have a Smart Lock feature that gives you the ability to set certain conditions that will cause your device to unlock automatically. Possible conditions include:
On-body detection: Once you’ve entered your PIN or password once, your phone will stay unlocked while you’re carrying it around.

Trusted devices: Select devices you trust that have Bluetooth connectivity (e.g. your car, laptop, fitness tracker, etc.). Your phone will remain unlocked while connected to these devices.Trusted places: Select locations you trust (e.g. your home or office) and your phone will remain unlocked while there.

Voice match and trusted face: Voice and facial recognition used to be Smart Lock options, but they were discontinued with Android 8. Facial recognition is still available as a separate option.Of course, there are drawbacks to the Smart Lock feature. First of all, it needs to be set up in advance, so if you forget your password before you get the chance to activate it, you’re out of luck. Furthermore, you need to enter your current password in order to change the Smart Lock and password settings, so if you’ve forgotten it, there’s a limit to what you can do.
How to unlock a Samsung phone People who own a Samsung phone will be glad to know that the manufacturer provides an easy, effective way for you to change your password. As long as you’re signed into your Samsung account on your device, you can use the Samsung Find My Mobile website to sign in and unlock your phone, which will delete all previous unlocking methods (password, PIN, pattern, biometrics) and allow you to create new ones.
Solutions for older versions of AndroidThere are a few ways to unlock your device that have been discontinued but will still work for older versions of Android.
Google’s ‘Find My Device’ serviceLike the Samsung-specific method explained above, there are services meant for lost or stolen phones that you can use to unlock your device in some cases. If your phone is running Android 7.1.1 or lower, you can use Google’s ‘Find My Device’ service to unlock it, as long as it’s logged into a Google account.
Simply go to the website, sign into your Google account and select your device. You’ll see ‘Ring’, ‘Lock’ and ‘Erase’ options. Select ‘Lock’, and you will be prompted to enter a temporary password that you can then use to unlock your phone.
The ‘Forgot Password’ optionPhones running Android 4.4 and older come equipped with an easy way to bypass your password, PIN or pattern. Once you’ve entered an incorrect passcode 5 times on the lock screen, a ‘forgot password’ prompt will appear. If you tap it, you will be able to get in by entering the username and password of the Google account associated with your device.
How to avoid getting locked out of your phoneWhen it comes to forgetting your phone password, an ounce of prevention is worth a pound of cure. It’s best to take preventive measures to ensure that you never find yourself completely locked out of your phone. Here are some strategies you can implement to avoid the situation:
Set up biometric identification on your device for a reliable, forgetfulness-proof way of getting in.Have multiple ways of logging into your device.Enable at least one Smart Lock option.Keep a physical copy of your passcode in a secure place.Make sure you’re signed into your Google account (and Samsung account if applicable).Always back up your device so that you can recover your data if a factory reset ends up being your only option.