Bose SoundLink Color II Battery Replacement
yellowjellyfish and 2 other contributors
Last updated on Sep 3, 2026
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Introduction
Go to step 1 ↓Like any device with a battery, the Bose SoundLink Color II will need a battery replacement once the battery no longer has the expected capacity.
However, because this speaker is waterproof, this task is not straightforward.
The following steps will guide you through the process of replacing the battery.
Keep in mind that waterproofness cannot be guaranteed once your device has been disassembled, but it is better than replacing the whole speaker, no?
What you need
Parts
Tools
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Start by pulling on the outer edges of the rubber part on the bottom of the enclosure.
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Note that it will not detach completely from the enclosure.
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Pry between the black hard plastic base and the colored rubber casing of your speaker.
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The bottom of the speaker unclips, and you have access to the rings that hold the colored envelope.
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Pull on the colored envelope, folding it on itself outwards.
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By removing the cover, the protective foam of the microphone will be damaged, the water resistance will be impacted.
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Remove the 7 screws on the back of the enclosure.
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And you access the interior of the enclosure (the battery has already been replaced in the photo shown).
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Cleanly cut the foam and battery wrap.
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The foam and the envelope will be used for reassembly (to avoid vibrations).
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Be careful not to puncture the battery or it may catch fire.
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Solder the new battery, and replace the envelope with the foam, holding everything with tape.
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For reassembly, follow this guide in reverse order.
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To reassemble your device, follow the instructions in reverse order.
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8 Guide Comments
Please be advised that the Bose support website has a firmware update that fixes some battery issues. I took my dead - non-charging Soundlink Color II apart and then found the website and fixed the issue with the firmware update! The update website is located @ http://btu.bose.com
Beware that, after the battery gets undervolted (like 2.4V), the device does not seem to accept an externally charged battery and continues to act dead, until it finds some form of comfort over its USB input. Not from a dumb 5V power supply, but from an USB charger or PC supporting some level of power delivery extension, and an appropriately wired lead.
Please list type of battery and where to find it it took me a while to find it
Guide was good, the battery pcb i found in my unit was a bit different and had metal strips soldered to the board and welded to the battery.
How to disassemble the motherboard as I have to change the microusb which got bend pin
