^ Alkalines so of course not. "Some" flashlights that take a 3 x AAA cartridge, can also have an 18650 swapped in its place but those generally aren't rechargeable via a USB cord. This one instead has a built in rechargeable battery but they don't list the size nor if it is user replaceable once worn out.
I mean at 's listed package size of 7.17 length, it doesn't seem long enough to have both the 3 x AAA cart chamber, and an 18650 cell inside, so something lower capacity than 18650.
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I mean at 's listed package size of 7.17 length, it doesn't seem long enough to have both the 3 x AAA cart chamber, and an 18650 cell inside, so something lower capacity than 18650.
Thank you!