Now Reading: OnePlus 8 Battery Replacement Guide | DIY Repair
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OnePlus 8 Battery Replacement Guide | DIY Repair
If your OnePlus 8 is experiencing fast battery drain, unexpected shutdowns, or failing to charge properly, replacing the battery can restore performance and extend the lifespan of your device. This guide provides a detailed, step-by-step DIY approach to safely replace the OnePlus 8 battery at home.
Repair Overview
- Device Type: Android Smartphone
- Model: OnePlus 8
- Type of Repair: Battery Replacement
- Battery Model: BLP761
Repair Difficulty : ★★★★★☆☆☆☆☆ (5/10 – Moderate)
Estimated Time: 30–45 minutes
Reasons for Battery Replacement
- Battery drains too quickly
- Device shuts down unexpectedly
- Phone won’t hold a charge or fails to power on without charging
- Swollen battery causing screen or back cover lift
- Aging battery with reduced capacity
Before You Begin
Compatibility and Model Numbers
Oneplus 8
This repair guide based on OnePlus 8
Model Numbers | IN2013, IN2017, IN2010, IN2019, IN2011
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
- 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
- Glue | Adhesive https://amzn.to/46exVxe
- Compatible Parts –
- Battery – https://amzn.to/3IgZ75c
- Screen – https://amzn.to/46iYhNy
- Other Parts – https://amzn.to/47Hh2N3
- Silicone Work Repair Mat https://amzn.to/45Emz5l
✅ Protect Your Oneplus 8
Best Rated Cases https://amzn.to/3KSEFZF
Top Screen Protection https://amzn.to/4o0cypQ
Step-by-Step Battery Replacement
Step 1. Opening the Device
Power off your OnePlus 8 completely. Heat the edges of the back cover using a heating pad or hair dryer to soften the adhesive. Use a suction cup to create a gap and a plastic card to carefully lift the back cover without cracking it.
Step 2. Removing the Mainboard Frame
Unscrew and remove the mainboard protective frame to access the battery safely. Keep all screws organized for reassembly.
Step 3. Disconnecting the Battery
Disconnect the battery connector from the mainboard to prevent any short circuits while removing the battery.
Step 4. Removing the Old Battery
Carefully lift the faulty battery from its compartment. Avoid bending or puncturing the battery, as this can be dangerous.
Step 5. Installing the New Battery
Place the new battery into the original compartment and reconnect the battery connector securely. Ensure proper alignment with the housing.
Step 6. Reinstalling the Mainboard Frame
Place the mainboard protective frame back into position and secure all screws. Make sure all connectors are fully seated before proceeding.
Step 7. Closing the Device
Check that the back cover has enough adhesive. Apply B7000 glue or a double-sided adhesive if necessary. Align the back cover carefully, press firmly, and secure with binding clips or leave the device on a flat surface for a few hours to allow proper adhesion.
Frequently Asked Questions (FAQ)
Q1: Can I replace the OnePlus 8 battery myself?
Yes, with the proper tools and careful handling, this moderate-level repair is achievable at home.
Q2: How do I know if the battery needs replacement?
Fast drain, unexpected shutdowns, failure to charge, or a swollen battery are signs that replacement is necessary.
Q3: Will replacing the battery affect other components?
No, as long as the battery connector is properly disconnected and you handle the mainboard and flex cables carefully.
Q4: What adhesive should I use for the back cover?
B7000 glue or a pre-cut double-sided adhesive works best for a secure seal.
Troubleshooting After Replacement
Q1: Device not turning on after battery replacement?
- Ensure the battery connector is properly seated.
- Charge the new battery for at least 15–20 minutes before powering on.
Q2: Battery percentage jumping or inaccurate?
- Perform a full charge to 100% and then let the device discharge to around 5% to recalibrate.
Q3: Back cover not sticking properly?
- Apply additional adhesive if needed and use binding clips for proper curing.
Q4: Device overheating?
- Check that the battery is compatible and properly seated in the compartment.
Replacing the battery on the OnePlus 8 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 helpful, feel free to explore more repair tutorials to keep your devices running like new.
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