The battery of Bluetooth Speaker

jisoo

New Member
Joined
Jan 3, 2017
Messages
9
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Location
hongkong
Good day, everyone.

Because it had a built-in 3.7v battery, my Bluetooth speaker died and ceased working.

The speaker does not work on its own when plugged in, indicating that the battery is dead.

I went out and got a 4.2v battery to replace it. The initial battery charge worked and kept the speaker operating for a while until it ran out of juice, at which point I attempted to charge it using the USB connector suggested for charging, but it didn't work.

According to the merchant where I purchased the battery, switching between voltages should not be a problem, but it appears to be. Is there a workaround for this?
 

ShantaramChari

Active Member
Joined
Jan 24, 2021
Messages
134
Points
28
Location
Mumbai
Good day, everyone.

Because it had a built-in 3.7v battery, my Bluetooth speaker died and ceased working.

The speaker does not work on its own when plugged in, indicating that the battery is dead.

I went out and got a 4.2v battery to replace it. The initial battery charge worked and kept the speaker operating for a while until it ran out of juice, at which point I attempted to charge it using the USB connector suggested for charging, but it didn't work.

According to the merchant where I purchased the battery, switching between voltages should not be a problem, but it appears to be. Is there a workaround for this?
Sometimes due to over voltage the ic or the resistor gets damaged. Try checking the pcb for any burnt components with the help of an eye glass, if any burnt components is present do replace it.

Regards
 
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