Follow along as I convert a AAA battery powered camping light to a rechargeable USB battery pack powered light! Think it'll work?

I bought some of these great little lights at Walmart to run in my Otter Vortex Lodge ice fishing hub & the only thing I don't like is that they get dim after a while. They don't seem to have a lot of longevity with the AAA batteries. Since rechargeable USB battery packs (and most USB power sources) have a 5v output, I figured that's close enough to the 4.5v the AAA batteries put out. I should be able to run the light off the charger without damage...right? 🤔😉

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