EBL, sold on Amazon, makes 3 volt, not 3.7 but 3 volt lithium ion cr123s. i use them in my streamlight flash light. they aren't usb c but usb micro. yes they last 1/2 as long a disposable but at $2-4 to fill the stream light i got my money back a long time ago.
EBL, sold on Amazon, makes 3 volt, not 3.7 but 3 volt lithium ion cr123s. i use them in my streamlight flash light. they aren't usb c but usb micro. yes they last 1/2 as long a disposable but at $2-4 to fill the stream light i got my money back a long time ago.