How to Keep Your Phone's Battery Healthy (And Last Longer)

Quick solutions for preserving your battery's lifespan

Co-authored by James Bell and Nicole Levine, MFA

Last Updated: November 23, 2024 Fact Checked

Does your Android or iPhone's battery seem to hold less of a charge over time? Like all rechargeable batteries, Li-ion batteries (which are in most phones) become less effective as they age. Even though these batteries aren't made to last forever, having a healthy battery and charging habits can extend the life of your battery . We'll show you easy ways to maximize your smartphone battery's lifespan by changing your charging habits.

Maintaining Your Phone Battery's Health

Change your settings so your screen turns off sooner after disuse.
Reduce your screen's brightness.
Disable keyboard vibrations and haptic feedback.
Charge your battery before it dies.
Don't always charge your battery to 100%
Turn on your adaptive battery saver.
Enable a darker display theme.

1

Don't wait until the battery is empty to recharge.

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Charge your phone throughout the day. Your phone's battery has a fixed amount of charging cycles (the number of times you charge the battery from 0% to 100%). For example, if your battery has a lifespan of 400 charging cycles, letting the battery drain every day means your battery will only last 400 days. ^{[1]
X
Research source} If you top off the battery before it drains completely, it reduces the number of overall charging cycles, which makes your battery last longer.
- Keeping a battery at full charge or always draining it to 0 can damage it and reduce its capacity. Try to keep your battery midway charged when you can and only charge to 100% when you need the extra time.

2

Avoid extreme temperatures.

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Exposure to very high or low temperatures drains the battery quickly. Batteries are made to work best at room temperature, which is about 68 °F (20 °C). ^{[2]
X
Research source} Your battery, especially when fully charged, will drain much faster in extreme temperatures. This can cause damage to the battery over time. ^{[3]
X
Research source}
- Avoid using your phone at all if the temperature is below freezing 32 °F (0 °C).
- If you live in a very cold region and spend a lot of time outdoors, invest in an insulated phone case.
- Only charge your battery at temperatures between 41 °F (5 °C) and 95 °F (35 °C).
- If the phone or charger feels hot to the touch during a charging session, unplug the phone from the charger as soon as possible to avoid damaging the battery.

3

Don't always charge your battery to 100%.

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Fully charging your battery won't destroy it, you can add some time to the battery's lifespan by only charging to 80% when possible.

4

Only use ultra-fast charging when necessary.

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Fast charging puts more stress on the battery than necessary, so battery performance can suffer over time. ^{[4]
X
Trustworthy Source
American Bar Association
Leading professional organization of lawyers and law students
Go to source} Opt for a standard "slow" charge more often than not to preserve battery longevity.

5

Use your phone sparingly while it's charging.

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Parasitic load is what happens while a battery is being drained during charging. ^{[5]
X
Research source} Parasitic load adds higher voltage stress to the battery, increases heat, and can cause parts of the battery to continually cycle and deteriorate faster than the rest of the cell. While you can take calls or browse the web during a charging session, avoid heavy tasks.

6

Use power-saving modes to increase time between charges.

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When your battery is slow, turn on your phone's low-power or battery-saving mode. Both Androids and iPhones have special battery-conservation modes that turn off background apps, decrease processing power, dim the screen, and disable other services that can drain your battery quickly.
- To turn on your iPhone's Low Power Mode, open the Control Center and tap the battery icon.
- If you have a Samsung Galaxy, open Settings and go to Battery and device care > Battery > Power saving . Tap the switch to turn on Power Saving Mode. ^{[6]
  X
  Research source}
- For other Androids, go to Settings > Battery > Battery Saver and tap Turn on now . ^{[7]
  X
  Research source}

7

Stick to the power adapter that came with your phone.

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Using a charger that supplies your phone with an inconsistent or too-high voltage level can severely impact your battery, and possibly even the rest of your phone.

8

Partially charge the battery before long-term storage.

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Don't charge it to 100%, as that can cause the battery to lose some of its capacity over time. ^{[8]
X
Research source} Charging the battery halfway first will help prevent the battery from draining so much that it can't be recovered after a long period of no usage.

9

Keep track of your phone's battery health.

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Both iPhones and Androids have built-in tools for battery health tracking. You can use these tools to find out more information about your battery's performance and life span using these tools.
- iPhone: Open your Settings and go to Battery > Battery Health .
- Samsung Galaxy: Open the Samsung Members app and go to Get Help > Interactive checks (or View tests ) > Battery status (or Battery ). ^{[9]
  X
  Research source}
- Other Androids: Open the Phone app and dial *#*#4636#*#* . When the menu appears, select Battery information (it may be buried in another menu).
- You can also try other Android battery health apps, such as CPU-Z, Battery by MacroPinch, and AccuBattery by Digibites. ^{[10]
  X
  Research source}

10

Keep your phone up to date.

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Sometimes software bugs can cause unnecessary stress on your battery. When this happens, developers release bug fixes for these issues through operating system updates . By keeping your phone up to date, you'll always have the latest bug fixes, battery mode enhancements, and performance improvements.

Community Q&A

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Question

Why would I need to keep track of the phone's battery health? Will that make it better by just knowing about it?

Community Answer

It's good to know about battery health so you can take steps to keep the battery alive as long as possible.

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Question

What is OK to do on the phone while it is charging? Can one watch videos of the news but not songs? Why did they say don't stream videos?

Yearif Rasaj

Community Answer

When your phone is charging, don't use it at all if you want to extend the battery life.

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How to Keep Your Phone's Battery Healthy (And Last Longer)

Maintaining Your Phone Battery's Health

Steps

Don't wait until the battery is empty to recharge.

Avoid extreme temperatures.

Don't always charge your battery to 100%.

Only use ultra-fast charging when necessary.

Use your phone sparingly while it's charging.

Use power-saving modes to increase time between charges.

Stick to the power adapter that came with your phone.

Partially charge the battery before long-term storage.

Keep track of your phone's battery health.

Keep your phone up to date.

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