Apple iPhones iPhone 13 Battery Replacement: How to Fix It Yourself
Battery problems with your Apple iPhone are usually caused by a worn-out battery, a faulty charger, or software draining power in the background. Many battery issues can be improved with the right settings and habits.
Tools Needed
Watch the Video
Video guide coming soon! Subscribe to our YouTube channel for repair walkthroughs.
Subscribe on YouTube⚠️ Safety First
- Power off your iPhone before attempting any physical repair.
- Be gentle with all connectors and ports — the internal components are delicate.
Before You Start
Parts You May Need
Step-by-Step Repair
- Step 1 of 61
Check the charger and cable
Use the original charger and cable if possible. Try a different cable and outlet. Damaged or third-party chargers often can't deliver enough power.
- Step 2 of 62
Clean the charging contacts
Inspect and clean all charging contacts, ports, or terminals. Use a dry toothbrush or cotton swab with isopropyl alcohol for metal contacts. Remove lint from ports with a toothpick.
- Step 3 of 63
Check battery health
Most devices have a battery health indicator in the settings. If the battery health is below 80%, the battery is degraded and may need replacement.
- Step 4 of 64
Calibrate the battery
Let the device run until it completely dies. Then charge it to 100% without interruption. This recalibrates the battery meter and can fix inaccurate readings.
- Step 5 of 65
Reduce power consumption
Lower screen brightness, disable unused features (Bluetooth, WiFi, GPS), and close background apps. Check which apps are using the most battery in your settings.
- Step 6 of 66
Consider battery replacement
If the battery is old (2+ years of heavy use) and calibration doesn't help, replacement is likely needed. Many batteries can be replaced for $20-$60, which is much cheaper than a new device.
You might also like:
If That Didn't Work
- Try a hard restart: quickly press Volume Up, Volume Down, then hold the Side button until you see the Apple logo.
- Check for a pending iOS software update that may fix the issue.
- Reset all settings (Settings > General > Transfer or Reset > Reset All Settings) without losing data.
When to Call a Professional
If software troubleshooting doesn't fix it, you may need a hardware repair. Apple charges $80-$300 depending on the issue. Third-party repair shops typically charge 30-50% less. If your phone is over 3 years old, compare repair costs to a refurbished replacement.
Related Guides
More Apple iPhones Guides
Disclaimer: This guide is for informational and educational purposes only and does not constitute professional repair advice. All repairs are performed at your own risk. RepairItFree.com is not liable for any personal injury, property damage, device damage, voided warranties, or other losses resulting from the use of this information.
If you are unsure about any step — especially anything involving electricity, gas, water, or refrigerant — stop and consult a qualified professional. Your safety is more important than saving money.
See our full Terms of Service for complete legal details.