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How to Replace a Dead or Failing Battery in Your DROP x THX Panda Headphones (DIY Repair Guide)
Do your DROP x THX Panda wireless headphones refuse to power on, require frequent recharging, or shut down unexpectedly even when the battery hasn’t dropped to 1%? Do they deliver significantly shorter playback time or fail to charge when connected to a power source? These are common signs of a dead or failing battery. Replacing it with a genuine part can restore battery life.
In this DIY repair guide, we show you how to replace a dead or failing battery in the DROP x THX Panda headphones at home with original replacement parts. Find the tools and genuine spares below.
Repair Difficulty
Moderate / Requires 30-45 minutes to complete.
This repair involves carefully handling delicate internal components, including cables, connectors, battery, and small screws. While prior soldering experience may help, it’s not essential. With the right tools, patience, and attention to detail, you can replace the battery in the DROP x THX Panda headphones yourself.
Replacement Parts You’ll Need
Restore your DROP x THX Panda headphones’ battery health and playback time with a genuine 3.85V Sony WF-1000XM4 battery (model number YY2948). Although this battery is smaller than the OEM one, it lasts much longer.
- Sony WF-1000XM4 Charger Case Replacement Battery 520mAh 3.85V (YY2948)
Tools You’ll Need
Before replacing your DROP x THX Panda’s battery, gather the following tools. Using the correct instruments will help you complete the repair successfully. We used the following tools and recommend them for a safe, professional-quality DIY fix at home.
- 1.5mm Phillips Screwdriver
- 1.5mm Flathead Screwdriver
- Precision Tweezers
- Strong Metal Pry Tool
- Nylon Spudger
- Soldering Iron
- Soldering Flux
- Heat Gun
- Heat-Proof Anti-Static Rubber Work Mat
Step-by-Step DIY Guide to Replacing a Dead or Failing Battery in the DROP x THX Panda Wireless Bluetooth Headphones Yourself
In this DIY repair guide, we will show you how to fix a no-charge issue by replacing a dead or failing battery in your DROP x THX Panda headphones. Follow each step carefully using the accompanying images as a visual guide to complete the repair with confidence.
The DROP x THX Panda wireless headphones’ battery is inside the right earcup. For this repair, we'll work only on the right side.
Step 1: Remove the Earpad Cushion
1.1. Insert a strong metal pry tool into the seam between the earpad cushion and the earcup housing, then work the tool around the perimeter of the housing to unclip the earpad and set it aside.
1.2. Peel the cushion with a flathead screwdriver and set it aside.
Step 2: Separate the Speaker Housing
2.1. Unfasten 6 Phillips screws holding the speaker driver to the earcup housing.
2.2. Separate the speaker housing from the driver and set it aside.
2.3. Peel the mesh to reveal the internal components.
Step 3: Extract the Old Battery
3.1. Disconnect the 2 ribbon cables connected to the main board.
3.2. Unfasten 2 Phillips screws securing the main board to the earcup housing.
3.3. Lift the board and move it to the side to create space for removing the battery.
3.4. Pry the battery out of the housing with a plastic spudger or strong metal pry tool.
3.5. Take a photo of the battery wires connected to the main board to use as a reference during reassembly. Apply soldering flux to the connectors and desolder the wires.
3.6. Apply new tin to the connectors so that the new battery wires can be easily soldered in place.
Step 4: Install a New Battery
4.1. Grab a new battery and solder the wires to the motherboard according to the reference photo from Step 3.5.
4.2. Peel the cover off the double-sided tape at the back of the battery, then place it in the earcup housing and press down for the adhesive to cure.
Step 5: Reassemble Your DROP x THX Panda Headphones
5.1. Align the charging port on the PCB with the slot in the earcup housing, then secure the board with 2 Phillips screws.
5.2. Reconnect the two ribbon cables.
5.3. Reinstall the mesh.
5.4. Reinstall the speaker housing.
5.5. Align the speaker driver and the housing with the earcup, then secure the assembly with 6 Phillips screws.
5.6. Align the foam piece with the earcup and press down till the adhesive bonds.
5.7. Align the earpad cushion with the earcup housing, and press down till the clips click into place.
Congratulations! Your DROP x THX Panda Wireless Bluetooth Headphones are Ready to Use
You have fixed the no-charge issue on the DROP x THX Panda Bluetooth headphones by replacing the dead or failing battery. Check charging stability, audio quality, button response, Bluetooth pairing, and playback time to confirm the device is functioning properly.
If you found this guide helpful and want to try DIY gadget repair, check out our store for essential tools and spare parts. You can also check out our at-home headphone repair guides for other popular brands, including Apple, Beats, Bose, and Sony.
Have questions or suggestions about this repair? Text a repair ninja or email us, and we’ll respond as soon as possible.