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Battery removal from Mini Bluetooth Radio? Answered

I have a battery that is dead inside a mini portable Bluetooth Radio, the radio can work only plugged for few minutes, then it turns OFF, a radio assistant says : "please recharge your battery"!!. As it is a Chinese product, i couldn't find this type of battery, i've taken out the battery and plug the radio directly to the adapter, the radio runs for 1.5 seconds then is turns off!! then a loop like this runs endlessly!
so am wondering if there is any way to remove the battery element completely and use the Radio only with cable.

Tags:radio

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Downunder35m

2 years ago

It looks like a standard BL5 battery for mobile phones will fit.
If not look on Ebay for smaller batteries for old Nokia phones.
Your thingy is not designed to run without battery.
If you want to use it without then you still need to check the electronics, supply 3.7V to the battery connection and hope.
Using a 5V supply with two doides in series should drop the voltage to around 3.6V.

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BouzenzelDownunder35m

Answer 2 years ago

So,you are pointing a modification in the power adapter, or between the battery wires!? what if i use a 100 ohm resistor!?

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Downunder35mBouzenzel

Answer 2 years ago

Not really....
The player needs the battery for the charging control - no battery and it will shut off as it can't charge.
A resistor won't work for this purpose.
If you want to try quick and dirty try what appens if you connect a 5V 1000µF electrolytic capacitor (or values close to this) instead of the battery.
Might be enough to fool the electronics to think there is a battery when you run the adapter to power it.

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BouzenzelDownunder35m

Answer 2 years ago

What i want to understand is : is the power adapter supply power to the board then charges the battery so when the adapter is absent the battery takes the job or it charges the battery then it supplies the power !?

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Downunder35mBouzenzel

Answer 2 years ago

You siad you tried with the adapter direct and it did not work, so it seems obvious the power supply is only for charging the battery.
After all it is a portable player...

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rickharris

2 years ago

Product model

Pictures

As much information as you can

Try putting the make and model into google to see if anyone else has solved this.

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Bouzenzelrickharris

Answer 2 years ago

I have removed the battery already ... i couldn't find a product model, even in the internet i've searched and didn't find anything. I have measured the battery voltage it's about 2.8v, i've tested the voltage in the wires its about 4v.