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Sony WH-CH520 Battery Replacement

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Time Required: 15 minutes
Difficulty: Moderate
Sony WH-CH520 Battery Replacement

Introduction

Go to step 1 ↓

Over time or with overuse, batteries can become corroded. If you notice the battery life decreasing significantly or possibly a strange smell coming from the Sony WH-CH520, it could mean it's time for a battery change. Replacing a battery requires being able to handle tools in small electronics and soldering experience.

What you need

Tools

    1. Sony WH-CH520 Battery Replacement, Battery: step 1, image 1 of 3 Sony WH-CH520 Battery Replacement, Battery: step 1, image 2 of 3 Sony WH-CH520 Battery Replacement, Battery: step 1, image 3 of 3

      • Lay headphones flat against the surface with the ear cushions oriented upwards.

      • Pinch the cushion of the right labeled headphone near the edge of the device to carefully pull the cushion off.

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    2. Sony WH-CH520 Battery Replacement: step 2, image 1 of 2 Sony WH-CH520 Battery Replacement: step 2, image 2 of 2

      • Remove the three 2.5 mm screws from the headphones using a JIS #00 screwdriver.

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    4. Sony WH-CH520 Battery Replacement: step 3, image 1 of 3 Sony WH-CH520 Battery Replacement: step 3, image 2 of 3 Sony WH-CH520 Battery Replacement: step 3, image 3 of 3

      • Place one end of an opening tool against the edge of the base with the hook-like side pushing up against the covering.

      • Carefully pull the tool down against the edge to lift the covering.

      • Move the tool to different spots around the base of the headphones to pry it up until the covering comes off.

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    5. Sony WH-CH520 Battery Replacement: step 4, image 1 of 2 Sony WH-CH520 Battery Replacement: step 4, image 2 of 2

      • Carefully remove the film adhesive on top of the battery using a pair of tweezers.

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    7. Sony WH-CH520 Battery Replacement: step 5, image 1 of 3 Sony WH-CH520 Battery Replacement: step 5, image 2 of 3 Sony WH-CH520 Battery Replacement: step 5, image 3 of 3

      • Carefully pry the battery up and off of its adhesive using a spudger.

      • You can rest the battery in its well to prevent it from getting in the way later

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    8. Sony WH-CH520 Battery Replacement: step 6, image 1 of 3 Sony WH-CH520 Battery Replacement: step 6, image 2 of 3 Sony WH-CH520 Battery Replacement: step 6, image 3 of 3

      • Find the wires connecting the motherboard to the battery.

      • Remember which wires are positive and negative.

      • Using a soldering iron, carefully desolder the red and black wires from the motherboard and replace with the new battery and wires.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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Author

with 2 other contributors

Brenna Caliri

Member since: 10/18/24

133 Reputation

1 Guide authored

Badges: 2

Team

UMass Dartmouth, Team 2-2, Konn Fall 2024 Member of UMass Dartmouth, Team 2-2, Konn Fall 2024

UMASSD-KONN-F24S2G2

4 Members

60 Guides authored

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