If your OnePlus 8 Pro battery drains quickly, shuts down unexpectedly, or no longer holds a stable charge, it may be time to replace it. This detailed guide walks you through the complete replacement process safely and efficiently—perfect for DIY repair enthusiasts.

Repair Overview

• Device Type: Android Smartphone
• Model: OnePlus 8
• Type of Repair: Battery Replacement
• Battery Model: BLP761

Repair Difficulty : ★★★★☆☆☆☆☆ (4/10 – Moderate)

Estimated Time: 25–40 minutes

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Reasons for Battery Replacement

• Battery draining faster than usual
• Sudden shutdowns at 10–30%
• Overheating during normal use
• Device performance drops due to battery degradation
• Battery swelling or physical damage

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Before You Begin

Compatibility and Model Numbers

• Oneplus 8 Pro

This repair guide based on OnePlus 8 Pro

Model Numbers | IN2023, IN2020, IN2021, IN2025

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Tools Required

• Mobile phone heating pad or hairdryer/heat gun
• Plastic pry tool / card pry
• Suction cups
• Phillips #00/#000 screwdrivers
• Torx T3 / T4 Screwdriver
• Flathead Screwdriver
• Tweezers (for connectors)
• B7000 glue or double-sided adhesive (for back cover)
• Rubber bands or bonding clips to secure the back cover

Using proper tools reduces the risk of damaging the phone.

How to Find Tools and Parts

• Heat Mat / Heating Pad – https://amzn.to/3H0tHzJ
• Portable Heat Gun – https://amzn.to/4mszih1
• Clamps https://amzn.to/3GYJT4w
• STREBITO 142 Piece Repair Tool Kit https://amzn.to/3UO1jUx
• Suction Cup https://amzn.to/3UVb6YR
• Silicone Work Repair Mat https://amzn.to/45Emz5l
• Glue | Adhesive https://amzn.to/47UTKmE

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✅ Protect Your Oneplus 8 Pro
Best Rated Cases https://amzn.to/47fTWen
Top Screen Protection https://amzn.to/4qzYIwi

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Step-by-Step Battery Replacement Guide

Step 1. Opening the OnePlus 8 Pro

Start by powering off your device. Heat the edges of the back cover using a heat pad, heat gun, or hair dryer to soften the adhesive. Once heated, use a suction cup and a plastic pry card to slowly lift and separate the back cover from the frame.

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Step 2. Removing the NFC Pad & Board Frame

Inside the device, remove the screws securing the board frame that also includes the NFC pad. Gently lift the frame using a pry tool and set it aside.

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Step 3. Removing the Faulty Battery

Disconnect the battery connector from the logic board. Gently lift the old battery using the pull tab or a plastic pry tool. Avoid bending or puncturing the battery during removal.

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Step 4. Installing the New OnePlus 8 Pro Battery

Place the new battery into the housing, ensuring it aligns perfectly. Press it gently into place and reconnect the battery plug to the logic board.

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Step 5. Reinstalling the Board Frame & NFC Pad

Reposition the board frame with the NFC coil and secure it back using the screws removed earlier. Make sure all connectors are seated properly.

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Step 6. Closing the Device

Check the back cover adhesive. If it appears weak, apply B7000 glue or a new double-sided adhesive. Align the cover and press it firmly onto the frame. Use binding clips or rubber bands for a tighter seal while the adhesive cures.

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Frequently Asked Questions (FAQ)

Q1: Is replacing the OnePlus 8 Pro battery safe to do at home?

Yes—if you follow the steps carefully and use the right tools. The battery is secured with adhesive but can be removed safely.

Q2: How do I know if my battery needs replacing?

Rapid drain, shutdowns, overheating, or swelling indicate a failing battery.

Q3: Will replacing the battery affect my data?

No. Battery replacement does not impact storage or system data.

Q4: What adhesive should I use for the back cover?

B7000 glue or pre-cut double-sided adhesive designed for smartphone back covers works best.

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Troubleshooting After Replacement

Q1: Phone doesn’t power on after installing the new battery.

• Check if the battery connector is securely attached.
• Ensure the board frame is properly seated.

Q2: Back cover isn’t sealing correctly.

• Clean old adhesive residue.
• Apply fresh B7000 glue or new adhesive strips.

Q3: NFC or wireless features not working.

• The NFC pad may not be aligned.
• Reopen the device and ensure the board frame is seated correctly.

Q4: Battery percentage drops suddenly.

• Calibrate the battery by charging to 100% and letting it drain to 5%, then charging again.

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Replacing the battery on the OnePlus 8 pro is a moderate-level repair that can significantly extend your device’s life. With patience, proper tools, and careful handling, you can complete this repair successfully at home.

If you found this guide useful, you’re welcome to explore additional repair tutorials to help keep your devices operating at peak performance.

Related Guides

• More Oneplus 8 Pro Repair Guides
• Onplus 8 Repair Guides