battery problem iphone 7

What problem? You don't say what it is.

Go to this web site for information about how to request battery service for your iPhone: iPhone Battery Repair & Replacement - Apple Support

For cost and availability, enter your model information in the "Get an estimate" box at the bottom. (It is best that you do this since sometimes contributors here forget this is an international forum and not everybody asking questions lives in the contributor’s country.)

For instructions on how to get your iPhone, iPad, or iPod touch ready for service click here --> Prepare your iPhone or iPad for service - Apple Support

If you're experiencing battery problems with your iPhone 7, there are several steps you can take to try and fix the issue:

1. Check Battery Health: Go to Settings > Battery > Battery Health to see if your battery's maximum capacity is significantly degraded. If it's below 80%, you might need to consider replacing the battery.
2. Update iOS: Make sure your iPhone 7 is running the latest version of iOS. Sometimes software updates include fixes for battery-related issues.
3. Restart Your iPhone: A simple restart can sometimes resolve various issues, including battery problems.
4. Check for Battery-Draining Apps: Go to Settings > Battery to see which apps are using the most battery. If you notice any apps consuming a lot of power in the background, consider uninstalling or restricting their background activity.
5. Reduce Screen Brightness and Timeout: Lowering the screen brightness and reducing the screen timeout can help conserve battery life.
6. Turn Off Background App Refresh: Go to Settings > General > Background App Refresh and disable this feature for apps that you don't need to update in the background.
7. Disable Location Services: Some apps constantly use GPS, which can drain your battery. Consider turning off location services for apps that don't require it.
8. Disable Push Email: Constantly fetching emails in the background can drain your battery. Switch to manual fetch or increase the fetch interval in Mail settings.
9. Enable Low Power Mode: When your battery is running low, you can enable Low Power Mode from Settings > Battery to conserve battery life until you can recharge.
10. Reset All Settings: If none of the above steps work, you can try resetting all settings on your iPhone. This won't delete your data, but it will reset all settings to their default values. Go to Settings > General > Reset > Reset All Settings.
11. Battery Replacement: If your iPhone 7's battery is old or damaged, you may need to replace it. You can do this through Apple or a certified service provider.

If you've tried all of these steps and are still experiencing battery issues, it's possible that there may be a hardware problem with your iPhone 7's battery or another component. In that case, you may need to contact Apple Support or visit an authorized service provider for further assistance.

When was the last time that you replaced the battery?

Fix WHAT problem?

If you've never had the battery replaced on that phone, you probably need a new one.