battery maintenance Archives - Chargie

On November 22, 2025 By ovidiu

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What Is Battery Cycle Count Explained

You’ve probably heard the term "battery cycle count," but what does it actually mean for your phone or laptop?

Think of it as an odometer for your battery. A single battery cycle count is logged every time you use up 100% of its power. This number is a simple way to track how much "mileage" your battery has, giving you a clear idea of its wear and tear.

Decoding the Battery Cycle Count

Smartphone displaying battery cycle count gauge meter on screen next to laptop keyboard

It’s easy to misunderstand this. A cycle isn't just one trip from the charger to empty. It’s not about how many times you plug your device in.

Instead, a cycle is one complete use of 100% of your battery's available power. Your device is smart enough to add up all your partial charges to figure this out.

So, you don’t need to drain your battery from a full 100% down to 0% in one go to complete a cycle. If you use 60% of your battery today and then another 40% tomorrow, those two uses combine to equal one full cycle.

How Partial Charges Add Up

There's a common myth that plugging your phone in often will ruin your cycle count. The truth is, it’s the total amount of energy you use that matters. One full cycle is simply the act of using up 100% of the battery's power, no matter how many separate sessions it takes.

Most modern batteries are built to handle between 300 and 500 of these full charge cycles before their ability to hold a charge starts to noticeably drop.

In simple terms, a higher battery cycle count means an older, more used battery—one that just won't last as long as it used to. Understanding this number is the first step toward better battery health.

Let's look at how your daily habits contribute to the overall cycle count. This is a key part of keeping your device’s battery in good shape.

How One Battery Cycle Is Counted

Usage Scenario	Percentage Used	Total Cycles Used
Day 1: Use 75% Day 2: Use 25%	100% (75% + 25%)	1.0 Cycle
Day 1: Use 40% Day 2: Use 40% Day 3: Use 20%	100% (40% + 40% + 20%)	1.0 Cycle
One Day: Use 100%	100%	1.0 Cycle

As you can see, it all adds up. Whether you use your battery in a single day or spread that usage across a few, once you've used a total of 100%, you’ve officially added another cycle to the count.

Why Your Battery Cycle Count Matters So Much

Electric vehicle with depleted smartphone battery on road illustrating battery lifespan concerns

If you want to know the real story behind how long your device will last, you need to know its battery cycle count. Think of it like the tread on a car tire. A new tire has deep grooves and grips the road perfectly. But with every mile you drive, a tiny bit of that rubber wears away.

A battery cycle works the same way. Every time you use up 100% of your battery's power—a full cycle—its ability to hold a charge gets a little bit weaker. At first, you won't notice it. But after hundreds of cycles, that wear and tear adds up, and you'll find yourself reaching for a charger more often.

This number is one of the most honest measures of a battery's true condition. Forget the simple "battery health" percentage, which can sometimes look better than it is. The cycle count tells the real story of how much work that battery has done.

From Numbers to Real-World Impact

A high cycle count isn't just a number; it's the reason your phone dies before you get home from work. Remember when your phone was brand new and lasted all day? The slow decline you've noticed since then is the direct result of all those cycles adding up.

Knowing your device's cycle count is powerful. It helps you:

Predict when your battery will weaken: It’s a good forecast for when your battery will start struggling.
Assess resale value: A low cycle count is a huge selling point for a used device, proving the battery still has plenty of life left.
Make smarter decisions: It gives you the info you need to decide if it's time for a battery replacement or if you should start saving for a new device.

Basically, each cycle brings your battery one step closer to retirement. For an idea, most smartphone batteries are built to keep around 80% of their original capacity after about 500 full cycles. Once you cross that number, the decline often gets more noticeable.

A high cycle count is the main reason a battery can't keep up anymore. It's the built-up wear from daily use, telling you exactly how much life your battery has left.

By keeping an eye on this number, you get a clear picture of your battery's past, present, and future. It turns the vague idea of "battery wear" into a solid number you can track, giving you the power to see problems coming before you're left with a dead phone.

How to Find the Cycle Count on Your Devices

Think of your battery's cycle count as a hidden health report. It tells you exactly how much "mileage" your battery has. The good news is, you don't need to be a tech expert to find this number.

With just a few clicks, you can get a clear picture of your device's battery health. It’s the first step to taking better care of your device. Let’s walk through how to do it on MacBooks, Windows laptops, iPhones, and Android phones.

Checking the Cycle Count on a MacBook

Apple makes finding your battery cycle count surprisingly easy. It's tucked away inside a detailed system report.

Here’s how to find it:

Click the Apple menu in the top-left corner of your screen.
Now, hold down the Option (⌥) key. You'll see "About This Mac" change to "System Information…". Click that.
A new window will pop up. In the left-hand menu, look under the "Hardware" section and find "Power."
Select "Power," and the main window will show you all the details about your battery. You'll find the "Cycle Count" listed under the "Health Information" heading.

This is what you'll see—a clear screen showing the cycle count and the overall condition of your battery.

What’s great is that Apple puts the cycle count right next to the battery's condition, giving you the full story in one look.

Finding the Cycle Count on a Windows Laptop

Windows makes you do a little more work. The cycle count isn't displayed out in the open, but you can create a detailed battery report with a single command. This report gives you the cycle count and a history of your battery's capacity over time.

Open the Start Menu and type "cmd" to bring up the Command Prompt.
Right-click on Command Prompt and choose "Run as administrator." This is important.
A black window will appear. Type this exact command and hit Enter: powercfg /batteryreport
The system will create a report and tell you exactly where it saved it, usually in your main user folder.
Find that "battery-report.html" file and open it in any web browser. Look for the "Cycle Count" under the "Installed batteries" section.

This report is very useful. It doesn't just give you a number; it shows you the trend of your battery's health by tracking how its full charge capacity has gone down over time.

Uncovering the Cycle Count on iPhone and Android

When it comes to our phones, things can be tricky. Apple has made it easier with recent updates, but the Android world is less consistent.

For iPhone (iOS 17 and newer): Apple finally made this simple. Just go to Settings > Battery > Battery Health & Charging. The Cycle Count is listed right there. On older iPhones, this info was often hidden, making it nearly impossible for a regular person to find.
For Android Phones: Unfortunately, there's no single, universal method. Some phone makers hide it in a secret menu, but that rarely works. Your best bet is to use a trusted app like AccuBattery. It won't know your past history, but once installed, it will start tracking your usage to estimate cycles and monitor battery health from that point on.

What a Good Cycle Count Looks Like for Different Devices

Not all batteries are the same. A cycle count that's bad for your phone might be perfectly fine for an electric car. Understanding these differences is key to having realistic expectations for your devices.

Think about it: the battery in your iPhone doesn't need to be as tough as the one powering a Tesla. Manufacturers balance cost, weight, and lifespan to match how a device is used. Your phone is likely replaced every 2-3 years, while a car is a much longer-term investment.

This means a "good" battery cycle count is relative. What looks healthy on one gadget could be a major red flag on another.

Common Lifespans for Smartphones and Laptops

For the devices we use every day, the numbers are pretty straightforward. Most are designed to work well for a few years before the battery life takes a noticeable dive.

Smartphones: A typical iPhone or Android is generally designed for about 500 full charge cycles. After that, you can expect the battery to hold around 80% of its original capacity. Apple is improving this, though—newer models like the iPhone 15 are built to last longer, aiming for 1,000 cycles before hitting that same 80% mark.
Laptops: The standard is a bit higher for laptops. A modern MacBook, for instance, is designed for 1,000 cycles before it’s considered "consumed." Knowing this can help you make smarter charging choices. For more on that, check out our guide on how to extend laptop battery life.

Checking the cycle count on your device is easier than you might think. This graphic shows you where to look on the most common platforms.

As you can see, the specific steps might be different, but the data is there for you on macOS, Windows, and iOS if you know where to look.

The World of High-Cycle Batteries

When you look beyond personal electronics, the engineering and expectations change a lot. Devices built for the long haul—things that need to endure heavy, repeated use—require batteries that can handle thousands of cycles.

Take electric cars. Battery lifespan is a huge selling point. A typical electric vehicle battery is designed to last somewhere between 1,000 and 1,500 full charge cycles before its capacity dips to the 70-80% range. To put that in perspective, Tesla's Model 3 and Model S batteries are rated for about 1,500 cycles, which translates to an incredible 300,000 to 500,000 miles of driving.

To get a sense of how these numbers compare, here’s a quick look at what you can generally expect from different types of devices.

Typical Battery Cycle Life by Device Type

Device Type	Typical Cycle Count Lifespan (at ~80% Capacity)	Real-World Lifespan Estimate
Smartphones (Standard)	500 cycles	2-3 years
Smartphones (Premium)	800-1,000 cycles	3-4 years
Laptops (MacBook)	1,000 cycles	4-6 years
Electric Vehicles (EVs)	1,000-1,500+ cycles	8-15 years (or 300,000+ miles)
Power Tools	500-1,000 cycles	Varies by use
E-Bikes	700-1,000 cycles	3-5 years

This table shows that a battery’s expected lifespan is designed for its job. A smartphone's 500-cycle limit is perfectly fine for its typical 2-3 year life. An EV, on the other hand, needs a much stronger battery to stay on the road for a decade or more.

This is why you can't apply a one-size-fits-all rule to what makes a "good" cycle count. It all depends on the device.

Practical Ways to Preserve Your Battery Health

Smartphone charging on desk with calendar and charger to extend battery life and optimize cycle count

Once you understand what a battery cycle count is, you can take steps to slow that counter down. You can't stop it completely, but you can adopt simple habits that reduce strain on your battery and keep it healthier for longer.

The goal isn't to worry about every single charge. It's about building a few easy routines that protect your device. These practical strategies to extend battery life apply to almost any device you own and make a real difference.

Avoid the Extremes in Charging

One of the worst things for a modern battery is constantly draining it to 0% or leaving it plugged in at 100% for hours. It's best to think of your battery as having a "comfort zone."

The sweet spot for long-term battery health is between 20% and 80%. Staying in this range is the easiest way to reduce the stress that causes batteries to wear out.

Going from 0% to 100% all the time adds unnecessary wear and tear, aging the battery and racking up cycle counts faster than needed. If you want to make it easy, a hardware battery charge limiter can automatically keep your battery in this healthy range.

Manage Heat and Temperature

Heat is the silent killer of batteries. Exposing your phone or laptop to high temperatures—whether it’s direct sunlight, a hot car, or intense gaming while plugged in—causes it to wear out much faster.

You can save your battery from an early end with a few simple tricks:

Take the case off when you charge. Some cases trap heat, so letting your device breathe can make a big difference.
Don't fast charge unless you have to. It's convenient, but fast charging creates more heat. Stick with a standard charger when you're not in a rush, like overnight.
Keep it out of the sun. Never leave your gadgets on a car dashboard or a sunny windowsill.

Use Smart Charging Features

Most modern phones and laptops have built-in software designed to protect their own batteries. Look for features like "Optimized Battery Charging" on iPhones or "Adaptive Charging" on Android devices.

These systems learn your daily routine. For example, your phone might charge to 80% quickly and then wait to top off the final 20% right before you wake up. This clever trick reduces the time the battery spends sitting at the stressful 100% level. Check your battery settings and make sure these features are turned on.

Still Have Questions? Let’s Clear Things Up

Even after you get the hang of what a battery cycle count is, a few common questions and myths tend to stick around. Let's tackle these head-on, so you can separate fact from fiction.

We'll cover everything from the debate about overnight charging to whether time or usage is the bigger battery killer.

Does Charging Overnight Rack Up Cycles?

This is a classic myth. The short answer is no. Modern devices are smart. Once the battery hits 100%, they stop charging. Leaving it plugged in all night doesn't add cycles, because a cycle only counts when you use the battery’s power.

The real downside of overnight charging is a little bit of heat. Staying at 100% while plugged in can generate warmth, which isn't great for long-term health. This is why many new phones have "Optimized Charging." They’ll charge to 80% and then wait to add the final 20% just before your alarm. It’s a much healthier routine.

Is a Low Cycle Count the Only Thing That Matters?

A low cycle count is a great sign, but it’s not the whole story. The other major factor is simply age.

A one-year-old battery with 150 cycles will almost always be healthier than a five-year-old battery with the same 150 cycles. Over time, the chemicals inside break down, whether you use the device or not.

On top of that, things like exposure to extreme heat and physical damage can hurt a battery’s performance, no matter how few cycles it has.

Do All Those Little Top-Ups Add Up to a Full Cycle?

Yes, they do. Your device keeps a running total of all the power you use. It doesn't care if you charge in one big session or a dozen small ones; it tracks your total usage.

Here’s how that works in the real world:

Using 50% of your battery today and another 50% tomorrow? That’s one full cycle.
Draining your battery by 25% four separate times before plugging it in? That also adds up to one full cycle.

The system is smart enough to measure the total amount of energy you’ve used.

So, When Should I Actually Replace My Battery?

There’s no single magic number, but manufacturers give us a good guideline. Apple, for instance, says a battery is "consumed" once it passes its rated cycle count (like 500 cycles for many iPhones) and its maximum capacity drops below 80%.

Honestly, the best time to replace it is when it just can't keep up with your day anymore. If you find yourself looking for a charger by mid-afternoon and your battery health screen shows a number below that 80% mark, it’s probably time for a new one.

Protecting your battery and making it last longer doesn't have to be a chore. With the right approach, you can build healthy charging habits without even thinking about it. Chargie is a smart little device that lets you set your own charging limits, keeping your battery in that optimal 20-80% zone and avoiding the stress of all-night charging sessions. Find out how you can get up to 4x more life from your batteries at https://chargie.org.

On October 21, 2025 By ovidiu

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How to Use a Power Bank: A Simple Guide to Charging on the Go

Using a power bank is easy: you charge it up, and then it charges your stuff. First, you'll need to charge the power bank itself using a wall charger. Once it's full, just connect your phone or tablet with the right cable, press the power button, and you're all set.

Getting Started With Your Power Bank

So, you've just unboxed your new portable charger. Before you can start using it on a long travel day or during a busy schedule, there are a couple of quick things to do to get it ready. It’s less about a complicated setup and more about just preparing it to work its best from the very beginning.

It’s no surprise that power banks have become a daily essential. The global market was valued at an incredible USD 12.2 billion in 2024, which just goes to show how much we all depend on our gadgets. You can dig into the numbers and trends over on imarcgroup.com. This massive growth highlights that knowing your way around a power bank isn't just for tech experts anymore—it's a practical life skill.

This quick visual guide breaks down the whole process into three simple stages.

As you can see, it really is as easy as charging it up, checking the power level, and plugging in your device.

First Charge and Basic Functions

The very first thing you should do is give your new power bank a full, uninterrupted charge. Use the cable it came with and plug it into a wall charger—not a laptop, as that can be too slow. Let it sit until all the indicator lights are solid, showing it's at 100%. This first charge is super important because it helps the battery's sensor work correctly, ensuring you get accurate power level readings later on.

Once it's charged, you'll notice it's a pretty simple device. A single press of the power button usually does one of two things: it either wakes the power bank up to start charging a connected device, or it lights up the LED indicators to show you how much juice is left. It’s a handy feature for that quick check before you walk out the door.

Understanding Your Power Bank's Lights and Symbols

Those little blinking lights and symbols on your power bank aren't just for show—they're telling you exactly what's going on. Learning to read them is key to knowing when to recharge the bank or how much power you have left for your devices. Here's a quick guide to what the most common indicators mean.

Indicator	What It Means	Action to Take
Solid LED Lights	The power bank is fully charged or is showing its current battery level.	If all lights are solid, it's ready to use. If some are off, that's how much power is left.
Blinking LED Lights	The power bank is either charging itself or actively charging another device.	Let it continue charging until the lights turn solid. If it's charging a device, it's working as expected.
One Blinking Light	The battery level is very low (usually below 10%).	Time to find an outlet and recharge the power bank as soon as possible.
No Lights On	The power bank is off or completely out of battery.	Press the power button once. If nothing happens, it needs to be charged.

This table should help you quickly figure out what your power bank is trying to tell you, so you're never caught off guard with a dead battery when you need it most.

The Right Way to Charge Everything

A person connecting a charging cable to a power bank.

How you charge your gear actually matters more than you might think. It’s not just about getting the power flowing—it's about doing it safely and efficiently to protect both your devices and the power bank itself.

Think of it this way: using a tiny, low-power wall plug to charge a massive power bank is like trying to fill a swimming pool with a garden hose. Sure, it’ll get the job done… eventually. But it's painfully slow. You should always try to use a powerful wall charger to fill up your power bank for the best results.

Smart Charging Habits for Your Devices

When you're plugging in your devices, be strategic. Most power banks have multiple charging ports, and they are definitely not all the same. Some are built for power-hungry gadgets like tablets, while others are better for your phone or earbuds.

High-Power Ports: Look for the ports marked with a higher number (like 2.4A) or wattage. These are your friends for bigger devices like an iPad or even a Nintendo Switch, making sure they charge at a good speed.
Standard Ports: The lower-power ports (often 1A) are perfect for your smartphone or wireless headphones. Using these for smaller devices prevents putting unnecessary stress on their batteries.

This simple habit of matching the port to the device is a huge part of learning how to use a power bank effectively and will seriously extend the life of your electronics.

Here’s a pro tip: I'd avoid "pass-through charging" whenever possible. That's when you charge a device from the power bank while the power bank itself is plugged in and charging. It creates a lot of extra heat, which is the number one enemy of battery life for both your gear and the bank itself.

This is more relevant than ever. Our reliance on mobile tech is exploding—in the Asia Pacific region, smartphone ownership was 76% in 2022 and is on track to hit 94% by 2030. That trend is fueling the massive need for reliable portable power. You can see more data on this at fortunebusinessinsights.com.

Some of the newer, more powerful power banks can even handle bigger electronics now. If you're curious about juicing up your larger gadgets on the go, check out our guide on how many watts you need to charge a laptop. By building these smart habits, you’ll make sure your gear is always ready when you need it.

Keeping Your Power Bank Healthy for Longer

A person holding a healthy, well-maintained power bank.

Think of a good power bank as a long-term travel companion, not something you have to throw out and replace every year. And just like the battery in your phone or laptop, a little bit of care goes a surprisingly long way. Picking up a few simple habits can dramatically improve its health and how well it performs over its lifetime.

The biggest rule is one you already know: keep it away from extreme temperatures. Leaving your power bank to bake in a hot car is a sure way to damage its internal battery. The same thing happens if you leave it out in the freezing cold—that can permanently reduce its total power capacity.

Smart Storage and Usage Habits

One of the most common mistakes I see is people letting a power bank sit completely dead for months. If you only pull it out for the occasional trip, please don't just toss it in a drawer at 0%. The batteries inside really don't like being left completely empty for long periods.

When you're putting it away for a while, the best charge level for storage is right around 50%. This keeps the battery stable and healthy. It's also a good idea to use it at least once every three months—give it a partial charge or use it to top off your phone. This keeps everything in good working order.

There's an old myth that you need to drain batteries completely before recharging. While that was true for old-fashioned batteries, it's actually harmful for the modern batteries in your power bank. Regularly running it down to 0% puts a lot of stress on the battery and will absolutely shorten its lifespan.

For day-to-day use, try to keep the charge level somewhere between 20% and 80%. This is the best range for a long life. Of course, charging it to 100% right before a long flight is perfectly fine when you need every drop of power. Just try not to make it a daily habit. If you're looking to automate this, a hardware battery charge limiter can be a game-changer for managing these levels without you having to think about it.

Key Maintenance Do's and Don'ts

Protect your investment with a few simple practices. It’s the difference between a power bank that lasts for years and one that dies an early death.

Do: Store it in a cool, dry place. A desk drawer is great; a car's glove compartment is not.
Don't: Let it die completely. Once you see that last light blinking, it's time to find an outlet.
Do: Use it occasionally. Even a quick top-up for your phone once a month is better than letting it gather dust.
Don't: Overcharge it constantly. There's no need to leave it plugged in all day; just unplug it when it’s full to reduce battery stress.

Safe Charging Habits Everyone Should Know

A person safely packing a power bank into their carry-on luggage for a flight.

Knowing how to charge your power bank is one thing, but using it safely is just as important. A few smart habits can protect your expensive gear from damage and, just as importantly, make sure you don't run into any trouble with airport security.

Believe it or not, the most common reason for charging problems usually isn't the power bank itself—it's the cable. Using a frayed, cheap, or damaged cable can lead to unstable power and damage your phone. If you ever notice a cable getting unusually hot or see it's worn out, stop using it immediately. It's just not worth the risk.

Spotting a Dangerous Power Bank

Just as you'd check your cables, you need to keep an eye on the physical condition of your power bank. The batteries inside are generally very safe, but they can become a real hazard if they get damaged.

There are a couple of red flags you should never, ever ignore:

Physical Swelling: If the case of your power bank looks puffy, bloated, or like it's bulging, that’s a clear sign of internal battery failure. This is a serious safety risk.
Excessive Heat: It’s totally normal for a power bank to get a little warm when it's working hard. However, if it ever gets too hot to comfortably hold, unplug it right away. Let it cool down somewhere safe, away from anything that can catch fire.

A swollen or overheating power bank is a ticking time bomb. Don't try to use it, charge it, or even keep it in your house. The best thing to do is take it to a designated battery recycling center for safe disposal.

While these problems are rare, especially with well-known brands, they show why it pays to be careful. Of course, people have lots of questions about other common practices, and you can learn more from our guide on whether you should charge your phone overnight.

Flying with Your Power Bank

You can absolutely travel by air with a power bank, but you have to follow the rules from the TSA and individual airlines. These aren't just for show—they exist because the batteries can pose a fire risk in the cargo area of a plane.

The main rule is simple: all power banks must be in your carry-on luggage. They are strictly forbidden in checked bags. Period. Most airlines also set a power limit, usually around 100Wh (watt-hours), which covers nearly every power bank you'd buy for personal use. Just toss it in your backpack or purse, and you'll get through security just fine.

Solving Common Power Bank Problems

Even the best power banks can have problems. Before you give up and assume it's dead, a few quick troubleshooting tricks can usually get things working again. More often than not, the issue is something small you can fix yourself in seconds.

One of the most common issues is a power bank that just won't charge your device. The first place I always look? The cable. It's the most likely culprit. Grab a different cable—one you know for sure is working—and see if that does the trick. You’d be surprised how often a bad cable is the real problem.

If a new cable doesn't solve it, the next stop is the charging ports themselves.

Quick Fixes for Unresponsive Chargers

Over time, the charging ports on both your power bank and your phone can get packed with pocket lint, dust, and other debris. This buildup prevents a good connection, and a quick, gentle clean can make all the difference.

Inspect the Ports: Take a close look inside the USB ports on the power bank and your phone.
Clean with Care: Grab a wooden or plastic toothpick and gently scrape out any debris you see. Never use anything metal, like a paperclip, as it can easily damage the port.
A Blast of Air: A can of compressed air is also a great, safe option for clearing out any stubborn dust.

Once you’ve cleaned the ports, try connecting everything again. This simple fix is often all it takes to solve charging problems.

Still nothing? You can try a simple reset. Just take the charging cable, plug one end into the power bank's output port, and loop the other end back into its input port. Hold it for about 10 seconds. This can sometimes reboot the internal system and clear up minor glitches.

Another classic issue is painfully slow charging. If your phone is taking forever to gain any juice, check that you’re plugged into a high-power port on the power bank. These are usually marked with 2.1A or higher. Also, make sure you're using a high-quality cable that’s actually designed for faster charging speeds.

Got Power Bank Questions? We've Got Answers.

We get asked all the time about the dos and don'ts of using power banks, so I want to clear up a few things I see popping up constantly.

One of the biggest questions is whether it's okay to use your phone while it's hooked up to a portable charger. The short answer? Yes, it’s generally fine. Your phone and the power bank are smart enough to manage the power flow and have safety features built in.

That said, using your phone while it charges—especially for something intense like gaming—creates extra heat. And if there's one thing that absolutely destroys a battery's long-term health, it's heat. So, whenever you can, just let it charge in peace.

How Many Charges Will I Actually Get?

This is the classic question. People often think if they have a 10,000mAh power bank and a 5,000mAh phone battery, they'll get two full charges. It just doesn't work that way.

The truth is, you lose a good chunk of energy when power moves from the bank to your phone, mostly as heat. It's never 100% efficient. A realistic rule of thumb is to expect only about 60-70% of the advertised capacity to actually make it into your device.

For example, a 10,000mAh power bank doesn't really give you 10,000mAh of charging power. You're looking at more like 6,500mAh of usable power. If your phone has a 3,250mAh battery, you'll get roughly two full charges out of it. Simple as that.

Knowing this little bit of math helps you pick the right size for your needs. A 10,000mAh unit is usually the sweet spot for daily top-ups. But if you're heading out for a long weekend or need to charge multiple gadgets, grabbing a 20,000mAh model is a much safer bet.

If you're serious about making your batteries last and finally ending the worry about overnight charging, you need to check out Chargie. It’s a smart hardware-and-app system that gives you total control over how you charge, preventing the damage that kills your battery's lifespan. Protect your phone and cut down on e-waste by visiting us at https://chargie.org.