i want to make a AA battery charger powered by usb
On the end marked "current limited output"Steve
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and the negative?
The negative connection comes straight from the USB port to the battery.Steve
Take a look at the "related" links on the right of the page.Steve
i didn't mean to hack and make!i want a "DIY" USB battery charger
How does thishttps://www.instructables.com/id/Simple-USB-Altoids-AA-Charger/not meet your stated requirements ? Steve
sorry there is an error in facebook connecting , i'm messam the authorthe only thing is that he made it with ready battery chargeri want to make it alone
If you're charging Nimh batteries, then a simple constant current charger will work fine. Here's a circuit based on an LM317 you can easily adapt for the maximum charging current - I'd aim for no more than 50mA, to protect the batteries from overheating when they are fully charged. Steve
where do i put the battery?