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The JBL Charge 4 is a waterproof, Bluetooth capable speaker that additionally functions as a portable charger for smartphones. It is identifiable by its model number: CHARGE4S.

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My speaker won’t stay charged and sounds muffled.

When I plug in my JBL Charge 4, it lights up and acts like it is charging. However, once I take it off the charger it dies immediately. The even bigger concern is that when I play music the speakers crackle and sound muffled.

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1 Answer

I think the battery may have died, maybe the speaker relies on it so without it the speaker sounds worse as well? Sorry, I'm not a expert, but I thought I should say something, its either the battery, charging port, or board is the reason for the battery not charging.

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Mark Laurence will be eternally grateful.
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