I repair phones and have several (more) iphone batteries..... my thought is to wire them into a board on say an amp or a cigar box boom box and add a usb port that would be powered through the iphone battery and of course be rechargeable..... I KNOW this would not power the amp it would just be a separate add on.... thoughts?
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The ARTEC amp boards will operate at anywhere from 12v down to 5v, you could power the card off the phone battery....
are these 3.7V LiPo batteries? if so you can buy premade boost converters and also charge circuits on ebay from china for a couple of bucks.
I have bought some 3W amp boards that run off 5V. so i went out and bought a cheap USB battery bank to power it. it has a 18650 LiPo battery and a combined charge boost board. powering this amp board from the USB output can be a problem depending on the board used. a dedicated board should be ok but the battery bank board i have wont power if the data lines are not set to a certain voltage that i cant figure out...lol
so i got another cheap chinese one and it doesnt care whats hooked to it.. it powers the amp fine. the amp board was 5 for $5 on ebay the battery bank cost me $10 and i have just recieved in the mail today a preamp board which was about $1.30.
so yes you can use the iphone batteries if you can get a charge board for each bat and then a buck/boost converter to give the output voltage you need.
this is the amp board, its about 20mm x 20mm or 3/4"x 3/4" it is also 2 channel i am hooking it up to 2 small speakers and giving the input to both sides. supposed to be class D 3W
will try tnx
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