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JBL Live 660NC Battery Replacement

Introduction

The JBL Live 660NC headphones (also known as JBL Live 660 NC or JBL Live 660NCBT) may require a battery replacement if they no longer hold a charge, die quickly, or show signs of swelling. This guide walks you through safely replacing the internal lithium-ion battery.

Over time, batteries lose capacity or fail, causing performance issues. When performing this repair, always disconnect the battery first, use the proper tools, and be careful not to damage other components. Swollen batteries are dangerous handle them correctly and dispose old batteries according to local regulations.

Before attempting a battery replacement, visit this troubleshooting page it might be a simpler issue than it seems.

Before you begin the repair, turn off your headphones and unplug the charging cable.

What you need

  1. JBL Live 660NC Battery Replacement, Battery: step 1, image 1 of 3 JBL Live 660NC Battery Replacement, Battery: step 1, image 2 of 3 JBL Live 660NC Battery Replacement, Battery: step 1, image 3 of 3

    • The battery is located in the left earcup. All steps in this guide must be performed on the left earcup.

    • Use a Jimmy or spudger to pry the bezel around the JBL plate.

    • Gently slide the tool around the edges to loosen the clips.

    • Lift the bezel off.

    Edit

  2. JBL Live 660NC Battery Replacement: step 2, image 1 of 1

    • Remove the three 5 mm screws with a Phillips #00 screwdriver.

    Edit

  3. JBL Live 660NC Battery Replacement: step 3, image 1 of 1

    • Use a Tri-point Y0 screwdriver to remove the two 5 mm screws at the base of the headband where it connects to the earcup.

    Edit

  5. JBL Live 660NC Battery Replacement: step 4, image 1 of 3 JBL Live 660NC Battery Replacement: step 4, image 2 of 3 JBL Live 660NC Battery Replacement: step 4, image 3 of 3

    • Use a nylon spudger or Jimmy to pry the earcup cover.

    • Gently slide the tool around the edges to loosen the clips holding the cover in place.

    • Lift the cover off.

    • Don't pull the cover off. The cover is still connected to the headphones by the battery cable.

    • Avoid using metal tools near the battery and other internal components Puncturing or shorting the battery can cause a fire or injury. Use a plastic or nylon opening tool instead.

    Edit

  6. JBL Live 660NC Battery Replacement: step 5, image 1 of 2 JBL Live 660NC Battery Replacement: step 5, image 2 of 2

    • Use a spudger to push the connector labeled BAT from the socket on the motherboard to disconnect the battery cable

    • Don’t pull on the wires—this can damage the connector and the device.

    Edit

  7. JBL Live 660NC Battery Replacement: step 6, image 1 of 2 JBL Live 660NC Battery Replacement: step 6, image 2 of 2

    • Use the tip of the spudger to push the plastic locking tab away from the socket labeled TH—it should only move about 1–2 mm.

    • Carefully remove the cable connector from the socket on the board.

    • Avoid pulling on the wires, and don’t twist or bend them.

    Edit

  8. JBL Live 660NC Battery Replacement: step 7, image 1 of 2 JBL Live 660NC Battery Replacement: step 7, image 2 of 2

    • Remove the battery from the inside cover.

    • If the battery looks swollen, don't attempt to remove it. Check out the What to Do With a Swollen Battery guide for additional information and instructions.

    Edit
Conclusion

To reassemble your device, follow these instructions in reverse order. Take your e-waste to an R2 or e-Stewards certified recycler.

Author

with 1 other contributor

Jailene Denova

Member since: 10/01/25

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Austin Community College, Team 10-4, Watkins Fall 2025 Member of Austin Community College, Team 10-4, Watkins Fall 2025

AUSTINCC-WATKINS-F25S10G4

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