Help your iPhone battery live its longest, healthiest life with these tips from our in-house tech wizards.
Jump to
What are Back Market’s battery standards?
How do I check my battery health?
How do I check my battery usage?
How can I get the most out of my battery?
What are some easy ways to extend my battery's life?
What are Back Market’s battery standards for iPhones?
All smartphones sold on Back Market will arrive with a battery health of at least 80% (for all other devices the battery health will be at least 85%). You can also choose a Premium grade smartphone which comes with a a minimum battery health of 90%.
If you purchased a phone with an "Extra charge battery" and the battery capacity falls below 90% after the first 30 days of use, and below 80% after the first 30 days of use, or any time after up until the end of your twelfth consecutive month of use, you're entitled to a repair.
For smartphones without "Extra charge batteries", keep in mind that if your battery health is above 80% within the first month of purchase, the state of its battery complies with our Quality Charter. This applies to smartphones purchased across all condition grades.
How do I check my battery health?
A normal battery is designed to keep up to 80% of its capacity for 500 complete charge cycles if operated in normal conditions, according to Apple. To check your battery health, follow these steps.
Go to “Settings” > “Battery” > “Battery Health” > check the percentage next to “Maximum Battery Capacity”.
If the capacity is 80% or above, your battery is in good health.
Note that when your battery is replaced by someone outside of Apple, your phone will show an “Unknown part” or “Important Message" notification.
Don’t panic — this is completely normal and doesn’t affect your device’s performance. Learn more about “Unknown part” or “Important Message” notifications
How do I check my battery usage?
It’s important to get into the habit of checking your battery usage. It’s a great way to monitor how much power your apps and software use.
To determine your device’s battery usage, go to “Settings” > “Battery” and look for the following sections.
Battery Health & Charging
You can learn about your patterns of use and what drains your battery from these insights. Your device might also give suggestions to help you lower your energy consumption. If available, select the suggestion and you’ll automatically be brought to the setting.
Last Charged to
This shows you the battery level of the last time your device was charged and disconnected.
Battery Level graph (last 24 hours)
This shows you the periods of time when your device was in Low Power Mode or running out of battery. It also shows your battery levels and charging intervals.
Battery Activity graph (last 10 days)
This shows your battery usage and activity for the last 10 days. It also tells you how long your screen was either on or off in that time.
Background Usage by App
Understanding the background activity of your apps is really helpful. It can help you manage your battery usage by showing how much of your battery is used by each app. Keep in mind that you won’t be able to see this while your device is charging.
The first step is to restrict apps from refreshing in the background. Just follow these steps:
Step 1. Go to “Settings.”
Step 2. Select “General.”
Step 3. Select “Background App Refresh”.
Step 4. Select “Wi-Fi”.
Step 5. Select “Wi-Fi & Cellular Data”.
Step 6. Select “Off”.
How can I get the most out of my battery?
Update your device
You should always use the latest iOS version to maximize your device's performance. You can make sure your device is updated by going to “Settings” > “General” > “Software Update”.
Change your brightness settings and rely on Wi-Fi
The best way to optimize your device’s performance is to keep your screen brightness low and use Wi-Fi when you possible.
You can also enable auto-brightness. To do so, go to “Settings” > “Accessibility” > “Display & Text Size” > “Auto-Brightness” > “On”.
Adjust your Mail app
You can also adjust your Mail settings to determine how often the app loads new emails. Just go to “Settings” > “Mail” > “Account” > “Fetch new data” and choose between these settings:
- Automatically
- Manually
- Hourly
- Every 30 Minutes
- Every 15 Minutes
Turn off Siri suggestions
Siri automatically runs in the background to send you recommendations. This drains your battery more quickly, so unless you rely on her — it’s time for Siri to go.
Go to “Settings” > “Siri & Search” > “Suggestions From Apple”.
Then, disable notifications, sharing, and listening suggestions.
Turn on Low Power Mode
Low Power Mode is a useful feature that makes your battery life last longer. Low Power Mode helps maximize your device’s performance by reducing brightness and minimizing animations, among other things.
When your battery level reaches 20% or 10% a pop-up message will appear to turn it on. Once your device is charged again, Low Power Mode will automatically turn off.
You can also enable this in Settings. Go to “Settings” > “Battery” > toggle the button next to “Low Power Mode”.
Location and background location
Allowing apps to use your location can consume a lot of battery in the background. To adjust this, go to “Settings” > “Privacy” > “Location Services”.
Once there, you can see a list of apps that use your location. Choose which ones you want to turn off.
Reduce push notifications
If any app sends you too many notifications, you can turn them off by going to “Settings” > “Notifications”, scrolling to find the app in question, and then toggling off “Allow Notifications”.
Turn on Airplane Mode
You can do this when you don’t need to receive texts, make calls, or search the internet. You can easily turn it on via your control panel. Airplane Mode shows up as the plane icon — just select it to turn it off. You can also do so in your settings.
What are some easy ways to extend battery life?
There are several best practices that can extend your device’s battery life and help the charge last longer.
Keep it cool
Avoid situations that can cause your device to overheat — this is particularly important when it’s fully charged. Your battery will run out a lot faster when it’s hot out, even if you aren’t using it.
It’s important not to expose your phone to temperatures above 35°C (95°F) as this can permanently damage the battery.
You should also stay away from cases and accessories that may cause your device to overheat.
Optimize your settings to save your battery
You can adjust the following settings on most devices:
- Enable the automatic screen-lock feature, which turns off your screen when it’s not in use.
- Turn off sounds or vibrations, such as the keyboard.
- Leave your apps open — reopening them uses a lot of battery.
- Reduce the usage of apps that consume a lot of battery.
- Turn off Bluetooth.
- Delete any apps you don’t use.
- Place your device facing down while you aren’t using it — this will stop the display from lighting up when you receive a notification.
- Activate dark mode.
Charge your device only as needed
Contrary to popular belief, phone batteries don’t need to be charged to 100%. Don’t make your battery work harder than it has to follow these tips:
- Ideally, your phone should always be charged between 20% and 80%.
- Don’t charge your phone to 100% unless absolutely necessary.
- Don’t allow your battery to drain to 0% and turn off.
- Don’t leave your device without a charge for too long.
- Prioritize small charges — 20% at a time multiple times a day is best.
- Consistently update your apps.