Gluu Essentials for iPhone  • Lesson #4 of 25

iPhone Battery Care

Your iPhone uses a lithium-ion rechargeable battery. This battery is nothing like the rechargeable batteries we used way back in the dark ages of the 1990s. Your iPhone battery is made with cutting-edge materials and amazing chemistry. Learning how to care for your iPhone battery is the key to extending your iPhone’s life. Here are some Gluu Tips scientifically proven to help you get the longest life out of your iPhone battery.

Check Out The Video

Watch the video to see this skill in action. The first time you watch, just take it all in and don’t mind the details. Then watch it again, getting comfortable with the steps.

Press the blue Play Button in the middle of the video screen to get started.

Then it’s your turn. Follow along using the detailed step-by-step instructions provided below.

Let's Get Tapping!

Partial charging is the way to go

It’s a myth that you need to occasionally discharge and recharge your battery to erase its memory. This couldn’t be more wrong and is a terrible plan when caring for your iPhone battery.

You can charge your iPhone for just a few minutes or a few hours. Quick charging touch-ups are fine and will not damage your iPhone battery.

Don’t leave your iPhone powered off for extended periods

Try not to turn off your iPhone for extended periods, such as weeks and months. Daily use keeps the electrons in the battery active, extending its lifespan.

Don’t charge your iPhone to 100%

This one catches people off guard – it’s important you avoid charging your iPhone to 100%. Batteries age faster if they’re always plugged in. Quick touch-up charges are better than a full 100% charge. Your sweet spot is an iPad battery that’s charged about 50% to 80%.

Use your iPhone until it’s at about 50% charged and then charge it up until it’s about 80% charged. That won’t take long.

So no going to bed with your iPhone plugged in.

Let your iPhone battery die monthly

Once a month or so, let your iPhone battery die – all the way until it shuts off. This helps it recalibrate and makes your ‘estimated battery time remaining’ reading more accurate.

Keep your iPhone comfortable

Heat is the enemy of a long iPhone battery life. Between 6° to 22° C (62° to 72° F) is its comfort zone. Ambient temperatures higher than 35° C (95° F) can permanently damage your iPhone battery. That means leaving your iPhone in a hot car or baking in the sun on the beach is a definite no-no.

You don’t have to worry about your iPad in cold temperatures. It can handle the cold, just not the heat.☀️

Don’t charge in high temperatures

Charging an iPhone in a high-temperature environment is the worst. Don’t leave your iPhone charging in direct sunlight on a hot day. Remember, between 6° to 22° C (62° to 72° F) is its comfort zone.

Avoid idle charging

Charging overnight or leaving an iPhone plugged in all day is a common habit. But it’s not recommended, and ‘overcharging’ isn’t the problem — iPhones are smarter than that.

A steady charge to a full iPhone battery reduces the battery’s stability. It also creates excess heat as the iPhone tries to get rid of the charge it doesn’t need. Heat is terrible for lithium-ion batteries.

Stop charging your iPhone at around 80%.

Avoid a parasitic load

This sounds bad… a parasitic load occurs when the iPhone battery is being significantly drained while it is being charged. This happens when you watch a video while you are charging. Try to avoid doing this.

Charge your iPhone first, then use it.

Turn off iPhone or let sleep while charging

Let your iPhone sleep while charging. Your iPhone will still charge when it is turned off.

At Gluu, we let our iPhones sleep while charging, rather than turning them off. This way we can easily keep an eye on how much charge the battery has just by pressing the Home Button.

Update your iPhone Operating System

Operating system updates often include advanced energy-saving features. Another reason to make sure your iPhone is always updated.

Remove certain cases during charging

Certain case styles may generate excess heat. Heat can damage your iPhone battery. If your iPhone is hot when you charge it, take it out of its case before charging it again. And, maybe consider a new case!

 Use your official charger

The charger that came bundled with your iPhone is the best one to use. It will apply the best practices for your battery’s general health. If you lose it, get an exact replacement.

We know that official Apple accessories are more expensive than knock-offs. But your charger is an important piece of equipment. Save some money elsewhere – like on your screen protector or case, for instance.

Quick Recap

There are a lot of tips in this lesson, here’s a quick recap:

• Top up your iPhone with brief charges
• Stay within the sweet spot of 50% to 80% charged
• Try not to leave your iPhone plugged in overnight
• Don’t use your iPhone when you’re charging it

Gluu Tip

Quick charges on your iPhone are much easier if you’re charging cable is accessible. Consider putting your charging station by the front door, in the kitchen–anywhere you can easily get at it.

You want to be able to plug your iPhone in for a few minutes to top off its charge. If the charging cable is difficult to access, you’re less likely to do that. Apple sells an extension cable that is longer than the standard charging cable. Ask them about this. It’s a handy accessory.

Gluu FAQ

Check out our answers to your most-asked questions on this topic. Tap on a question to reveal its answer. Use the button below to ask your question and we’ll do our best to answer it at our Live Q&A.

How can I view my iPhone battery percentage.

Depending on your iPhone model, you can view your battery percentage using numbers instead of just an icon. This makes it easier to see how charged your iPhone battery is.

To turn this setting on: Settings > Battery > Battery Percentage > On.

Gluu Tip: A green background to the Settings app On/Off button means the setting is on, a grey background means this setting is off. Just tap the white dot on this button to toggle between on and off.

If you are on an iPhone X or higher, you won’t see the Battery Percentage on your home screen. Swipe to get the Control Center, and you will see Battery Percentage on the top left of the Control Center screen.

Why is my battery draining so quickly?

You may have noticed an older iPhone doesn’t hold its charge as it did when brand new. Or you have an old device that says the battery is 90% charged, and an hour later, it’s almost dead. This sounds like normal behaviour for an older lithium-ion battery. But if this is happening to your new iPhone, contact Apple.

Battery capacity may decline with age, but there are things you can do to prolong the life of your battery. 

Is it good to let my iPhone battery die?

Try not to leave your iPhone off for extended periods, such as weeks and months. If you don’t use your iPhone often, just turn it on every few weeks to keep the electrons in the battery active. That will extend its lifespan.

How do I take care of my iPhone battery?

Go through this lesson one more time for our complete answer to this question. The quick answer is

  • Don’t charge it to 100%,
  • Let it die once a month or so
  • Don’t use it while it’s charging

Onward, Ho!

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