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Charging batteries in the speaker

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(@dheazzo)
Posts: 1
New Member
Topic starter
 

I’m preparations to re-make the earbuds to dual speakers, the only modification I want to make in my build is to have the batteries charged internally without a need to charge them from an external charger, any can advise me on which circuit will be recommended for this project??

 
Posted : 01/07/2023 6:56 pm
marcdraco
(@marcdraco)
Posts: 487
Member
 

Have a look on eBay - you can get pre-made charger boards - often in packs of 10 for far less than it would cost to have your own produced. I suggest you look for one that's rated for about twice the draw you expect (or switch out the current sense if you know how, BigClive.com has some examples on his YouTube channel) as not all of them are of equal quality and it's better to slow charge than to overload the cell. 


Take everything I say with a pinch of salt, I might be wrong!

 
Posted : 07/07/2023 8:51 pm
(@gossi123)
Posts: 6
Active Member
 

That sounds like an exciting project! You may want to explore electronic websites or forums to find advice on creating a circuit for internal charging the batteries in your earbuds turned dual speakers. Websites like StackExchange, Instructables, or Electronics Hub could be great places to start your research. Best of luck with your project!

 
Posted : 01/08/2023 9:16 am
(@gossi123)
Posts: 6
Active Member
 

In your rangefinder project, it sounds like you're planning to enhance the earbuds with dual speakers and an internal charging system. For this modification, I'd recommend looking into a compact, efficient charging circuit. A popular choice is a lithium-ion battery management system (BMS) that includes charging capabilities. It will allow you to charge the batteries internally and efficiently manage their power. Just select a BMS that suits your battery specifications and the size constraints of your earbuds. Good luck with your project!

 
Posted : 28/09/2023 1:58 pm
marcdraco reacted
marcdraco
(@marcdraco)
Posts: 487
Member
 

@gossi123 has reiterated the same point I made. You can get pre-made charging boards. They're very small, have adjustable charge currents and so on and they a super-duper cheap.

Making your own (even from an existing design) is potentially a fire risk.


Take everything I say with a pinch of salt, I might be wrong!

 
Posted : 30/09/2023 5:51 pm