Technologies

Is Always Charging Your Phone Bad for the Battery? Apple, Samsung and Google Weigh In

This is the million-dollar question most people want answered. Here’s what the experts have to say.

There was a time when smartphone users were warned not to leave their phones plugged in for too long, or it could do damage to the battery. While modern smartphones now have overcharge protection that keeps them safe, many people still have questions about whether keeping their phone perpetually plugged in will damage the battery.

The short answer is no. Keeping your phone plugged in all the time won’t ruin your battery. Modern smartphones are built with smart charging systems that cut off or taper power once they’re full, preventing the kind of «overcharging damage» that was common in older devices. So if you’re leaving your iPhone or Android on the charger overnight, you can relax.

That said, «won’t ruin your battery» doesn’t mean it has no effect. Batteries naturally degrade with age and use, and how you charge plays a role in how fast that happens. Keeping a phone perpetually at 100% can add extra stress on the battery, especially when paired with heat, which is the real enemy of longevity.

Understanding when this matters (and when it doesn’t) can help you make small changes to extend your phone’s lifespan.

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The science behind battery wear

Battery health isn’t just about how many times you charge your phone. It’s about how it manages voltage, temperature and maintenance. Lithium-ion batteries age fastest when they’re exposed to extreme levels: 0% and 100%.

Keeping them near full charge for long stretches puts additional voltage stress on the cathode and electrolyte. That’s why many devices use «trickle charging» or temporarily pause at 100%, topping up only when needed.

Still, the biggest threat isn’t overcharging — it’s heat. When your phone is plugged in and running demanding apps, it produces heat that accelerates chemical wear inside the battery. If you’re gaming, streaming or charging on a hot day, that extra warmth does far more harm than leaving the cable plugged in overnight.

Apple’s take

Apple’s battery guide describes lithium-ion batteries as «consumable components» that naturally lose capacity over time. To slow that decline, iPhones use Optimized Battery Charging, which learns your daily routine and pauses charging at about 80% until just before you typically unplug, reducing time spent at high voltage.

Apple also advises keeping devices between 0 to 35 degrees Celsius (32 to 95 degrees Fahrenheit) and removing certain cases while charging to improve heat dissipation. You can read more on Apple’s official battery support page.

What Samsung (and other Android makers) do

Samsung offers a similar feature called Battery Protect, found in One UI’s battery and device care settings. When enabled, it caps charging at 85%, which helps reduce stress during long charging sessions.

Other Android makers like Google, OnePlus and Xiaomi include comparable options — often called Adaptive Charging, Optimized Charging or Battery Care — that dynamically slow power delivery or limit charge based on your habits. These systems make it safe to leave your phone plugged in for extended periods without fear of overcharging.

When constant charging can hurt

Even with these safeguards, some conditions can accelerate battery wear. As mentioned before, the most common culprit is high temperature. Even for a short period of time, leaving your phone charging in direct sunlight, in a car or under a pillow can push temperatures into unsafe zones.

Heavy use while charging, like gaming or 4K video editing, can also cause temperature spikes that degrade the battery faster. And cheap, uncertified cables or adapters may deliver unstable current that stresses cells. If your battery is already several years old, it’s naturally more sensitive to this kind of strain.

How to charge smarter

You don’t need to overhaul your habits but a few tweaks can help your battery age gracefully.

Start by turning on your phone’s built-in optimization tools: Optimized Battery Charging on iPhones, Battery Protect on Samsung devices and Adaptive Charging on Google Pixels. These systems learn your routine and adjust charging speed so your phone isn’t sitting at 100% all night.

Keep your phone cool while charging. According to Apple, phone batteries perform best between 62 and 72 degrees Fahrenheit (16 to 22 degrees Celsius). If your phone feels hot, remove its case or move it to a better-ventilated or shaded spot. Avoid tossing it under a pillow or too close to other electronics, like your laptop, and skip wireless chargers that trap heat overnight.

Use quality chargers and cables from your phone’s manufacturer or trusted brands. Those cheap «fast-charge» kits you find online often deliver inconsistent current, which can cause long-term issues.

Finally, don’t obsess over topping off. It’s perfectly fine to plug in your phone during the day for short bursts. Lithium-ion batteries actually prefer frequent, shallow charges rather than deep, full cycles. You don’t need to keep it between 20% and 80% all the time, but just avoid extremes when possible.

The bottom line

Keeping your phone plugged in overnight or on your desk all day won’t destroy its battery. That’s a leftover myth from a different era of tech. Modern phones are smart enough to protect themselves, and features like Optimized Battery Charging or Battery Protect do most of the heavy lifting for you.

Still, no battery lasts forever. The best way to slow the inevitable is to manage heat, use quality chargers and let your phone’s software do its job. Think of it less as «babying» your battery and more as charging with intention. A few mindful habits today can keep your phone running strong for years.

Technologies

Today’s NYT Connections: Sports Edition Hints and Answers for April 8, #562

Here are hints and the answers for the NYT Connections: Sports Edition puzzle for April 8 No. 562.

Looking for the most recent regular Connections answers? Click here for today’s Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles.

Today’s Connections: Sports Edition is a tough one. If you’re struggling with today’s puzzle but still want to solve it, read on for hints and the answers.

Connections: Sports Edition is published by The Athletic, the subscription-based sports journalism site owned by The Times. It doesn’t appear in the NYT Games app, but it does in The Athletic’s own app. Or you can play it for free online.

Read more: NYT Connections: Sports Edition Puzzle Comes Out of Beta

Hints for today’s Connections: Sports Edition groups

Here are four hints for the groupings in today’s Connections: Sports Edition puzzle, ranked from the easiest yellow group to the tough (and sometimes bizarre) purple group.

Yellow group hint: Working out.

Green group hint: Cover your face.

Blue group hint: NFL players.

Purple group hint: Leap.

Answers for today’s Connections: Sports Edition groups

Yellow group: Exercises in singular form.

Green group: Sporting jobs that require masks.

Blue group: Hall of Fame defensive ends.

Purple group: ____ jump.

Read more: Wordle Cheat Sheet: Here Are the Most Popular Letters Used in English Words

What are today’s Connections: Sports Edition answers?

The yellow words in today’s Connections

The theme is exercises in singular form. The four answers are crunch, plank, situp and squat.

The green words in today’s Connections

The theme is sporting jobs that require masks. The four answers are catcher, fencer, football player and goaltender.

The blue words in today’s Connections

The theme is Hall of Fame defensive ends. The four answers are Dent, Peppers, Strahan and Youngblood.

The purple words in today’s Connections

The theme is ____ jump. The four answers are broad, high, long and triple.

Technologies

The $135M Google Data Settlement Site Is Live — See If You’re Eligible

Use the settlement website to select your preferred payment method, and you may end up $100 richer.

You can now file a claim in the $135 million Google data settlement. The case centers on claims that Android devices transmitted user data without consent. Specifically, the class action lawsuit Taylor v. Google LLC contends that Google’s Android devices passively transferred cellular data to Google without user permission, even when the devices were idle. While not admitting fault, Google reached a preliminary settlement in January, agreeing to pay $135 million to about 100 million US Android phone users.

The official settlement website for the lawsuit is now live. The final approval hearing won’t occur until June 23, when the court will consider whether Google’s settlement is fair and listen to objections. After that, the court will decide whether to approve the $135 million settlement.

In the meantime, if you qualify and want to be paid as part of the settlement, you can select your preferred payment method on the official website. There, you can find information on speaking at the June 23 court hearing and on how to exclude yourself or write to the court to object by May 29.

As part of the settlement, Google will update its Google Play terms of service to clarify that certain data transfers do occur passively even when you’re not using your Android device, and that cellular data may be relied upon when not connected to Wi-Fi. This can’t always be disabled, but users will be asked to consent to it when setting up their device.

Google will also fully stop collecting data when its «allow background data usage» option is toggled off.

Who can be part of the settlement?

In order to join the Taylor v. Google LLC settlement, you must meet four qualifications:

Be a living, individual human being in the US.
Have used an Android mobile device with a cellular data plan.
Have used the aforementioned device at any time from Nov. 12, 2017, to the date when the settlement receives final approval.
You’re not a class member in the Csupo v. Google LLC lawsuit, which is similar but specifically for California residents.

The final approval hearing is on June 23, so you can add your payment method until then. The hearing’s date and time may change, and any updates will be posted on the settlement website.

If you choose to do nothing, you will still be issued a settlement payment, but you may not receive it if you don’t select a payment method.

How much will I get paid?

It’s not currently known exactly how much each settlement class member will receive, but the cap is $100. Payments will be distributed after final court approval and after any appeals are resolved.

After all administrative, tax and attorney costs are paid, the settlement administrator will attempt to pay each member an equal amount. If any funds remain after payments are sent, and it’s economically feasible, they will be redistributed to members who were previously and successfully paid. If it’s not economically feasible, the funds will go to an organization approved by the court.

Technologies

Samsung’s Galaxy Watch Ultra 2 Might Come in 5G and 4G Cellular Models

If the rumor proves true, the 5G Galaxy Watch Ultra would rival the 5G-enabled $799 Apple Watch Ultra 3 that debuted last fall.

Samsung’s next high-end Galaxy Watch could support faster 5G speeds, but if this leak is true, it will depend on where you live. The rumored Samsung Galaxy Watch Ultra 2 might come in 5G and 4G cellular models, with availability for each smartwatch depending on the country.

According to the Dutch website Galaxy Club (and spotted by SamMobile), Samsung’s servers may have revealed a series of model numbers that point to 5G, 4G and Wi-Fi-enabled editions of the next Galaxy Watch Ultra, which would succeed the original model that debuted in 2024.

A representative for Samsung did not immediately respond to a request for comment.

The Galaxy Club website speculates that the 5G edition would be sold in the US and Korean markets, while the 4G edition would sell in the rest of the world. In the US, a 5G version of the Galaxy Watch Ultra would rival the 5G-enabled $799 Apple Watch Ultra 3, which debuted last fall. The 4G edition would have broader compatibility worldwide, since the earlier network is far more established.

It will likely be a few months until we hear anything official about the Galaxy Watch Ultra 2. Samsung typically unveils its new watches in the summer alongside its Galaxy Z Fold and Z Flip foldable phones. Last year, Samsung unveiled the Galaxy Watch 8 and the Galaxy Watch 8 Classic, but otherwise left the prior 2024 Ultra in the lineup for those looking for a larger 47mm smartwatch.