iPhone 12 Original Battery
iPhone 12 Original Battery

If your iPhone 12 isn’t holding a charge like it used to, you might need to replace the battery. This guide will help you decide whether to choose a genuine Apple battery or an aftermarket option. We’ll cover the tools you need, the steps involved, and the costs associated with each option. Replacing your iPhone 12 battery can make your phone last longer and work better. If you’re not confident doing it yourself, you should think about professional repair to avoid any mishaps.

iPhone 12 Battery Replacement: A Step-by-Step Guide

Why Replace Your iPhone 12 Battery?

Over time, all lithium-ion batteries degrade. This means your iPhone 12 might not hold a charge as well as it used to. If you notice your phone dying quickly, unexpectedly shutting down, or needing to be charged more often, it might be time for a new battery.

Tools and Materials Needed

Before you start, gather these essential tools and materials:

  • Replacement battery: Ensure it’s compatible with your iPhone 12.
  • Screwdriver set: You’ll need specific pentalobe and Y000 screwdrivers.
  • Adhesive strips: To secure the new battery.
  • Opening picks or pry tools: For gently prying open the phone.
  • Heat gun or hair dryer: To loosen the adhesive.
  • Isopropyl alcohol: To clean any residue.

Step-by-Step Procedure

Follow these steps to replace your iPhone 12 battery:

  1. Power off: Turn off your iPhone 12 completely.
  2. Remove screws: Unscrew the two pentalobe screws at the bottom of your iPhone.
  3. Open the display: Use a heat gun or hair dryer to warm the edges of the screen, then carefully insert an opening pick or pry tool to lift the display.
  4. Disconnect battery: Locate the battery connector and carefully disconnect it.
  5. Remove old battery: Gently peel off the adhesive strips securing the old battery, then remove it from the phone.
  6. Install new battery: Place the new battery in the phone and connect the battery connector.
  7. Reassemble: Carefully reattach the display, ensuring all cables are connected, then screw in the pentalobe screws.

Precautions and Tips

  • Discharge battery: Before starting, discharge your battery below 25% to reduce the risk of fire if it’s accidentally punctured.
  • Work on a clean surface: Prevent dust and debris from entering your phone.
  • Take your time: Don’t rush, and be gentle with the delicate components.
  • Consider professional help: If you’re unsure, seek assistance from a qualified technician.

Cost Comparison: DIY vs. Professional

MethodApproximate CostProsCons
DIY Replacement$30-$50Cheaper, learn a new skill, sense of accomplishmentRequires technical knowledge, risk of damage if done incorrectly
Professional Repair$70-$100Expertise, guarantee, peace of mindMore expensive

Key Takeaways

  • Genuine vs Aftermarket: Genuine batteries ensure compatibility and safety, while aftermarket options are more affordable but may lack in quality.
  • DIY Considerations: DIY replacement can be cost-effective but requires technical skill and the right tools.
  • Battery Health: Regularly check your iPhone’s battery health to determine when a replacement is needed.

Understanding Your iPhone 12 Battery Needs

Before diving into the replacement process, it’s essential to recognize when a replacement is needed. iPhone 12 models typically maintain up to 80% of their original battery capacity after 500 charge cycles. If you notice a significant drop in battery performance or if your iPhone’s battery health is below 80%, it’s time to consider a replacement.

Genuine Apple Batteries: The Safe Bet

Opting for a genuine Apple battery replacement comes with several benefits:

  • Compatibility and Safety: Genuine batteries are designed specifically for your iPhone model, ensuring optimal performance and safety.
  • Battery Health Features: With an Apple replacement, you retain access to iOS battery health settings.
  • Warranty and Support: Apple provides a warranty for their battery services, offering peace of mind.

Aftermarket Batteries: A Cost-Effective Alternative?

Aftermarket batteries are often more affordable, but they come with their own set of considerations:

  • Quality Variance: The quality of aftermarket batteries can vary significantly.
  • Compatibility Issues: Some users report issues with battery health readings and warnings with non-genuine batteries.
  • Warranty Concerns: Using an aftermarket battery may void your iPhone’s warranty.

DIY Battery Replacement: Is It Worth It?

Replacing your iPhone 12 battery yourself can be a cost-effective solution, but it requires technical skill and the right tools. The iPhone 12 has a considerable amount of adhesive, making the process challenging for beginners.

Tips for DIY Replacement

  • Use Quality Tools: Invest in a high-quality tool kit for opening your iPhone.
  • Follow Detailed Guides: Websites like iFixit offer step-by-step guides for battery replacement.
  • Be Cautious: Be careful not to damage the display or internal components during the process.

Professional Replacement Services

If you’re not confident in your DIY skills, professional replacement services are a reliable option. Apple Stores and authorized service providers offer battery replacement services with genuine parts.

Long-Term Battery Care

To maximize your iPhone 12’s battery lifespan, follow these tips:

  • Avoid Extreme Temperatures: Keep your iPhone away from extreme heat or cold.
  • Regular Charging: Avoid letting your battery drain completely.
  • Software Updates: Keep your iOS updated for optimal battery performance.

Relevant Resources

FAQ Section

Q: How do I know if my iPhone 12 needs a battery replacement?

A: Check the battery health in Settings. If it’s below 80% or you’re experiencing significant performance issues, consider a replacement.

Q: Can I replace my iPhone 12 battery myself?

A: Yes, but it requires technical skill and the right tools. Following a detailed guide is crucial.

Q: Are aftermarket batteries reliable?

A: The quality of aftermarket batteries varies. While they are more affordable, they may not offer the same reliability and features as genuine Apple batteries.

Q: Does replacing my iPhone battery with a non-genuine part void the warranty?

A: Yes, using non-genuine parts can void your iPhone’s warranty.

Q: How much does it cost to replace an iPhone 12 battery?

A: The cost varies depending on whether you choose a genuine Apple battery or an aftermarket option, and whether you opt for professional service or DIY.


In conclusion, whether you choose a genuine Apple battery or an aftermarket option for your iPhone 12, it’s important to weigh the pros and cons of each choice. Consider your technical skills for a DIY approach, or opt for professional services for guaranteed quality and peace of mind. Remember, maintaining your iPhone’s battery health is key to ensuring its longevity and optimal performance.

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