Fireflylite QT Magnetic USB-C charging Box

Wouldnt use this for smaller than 18650, but especially for 21700 an bigger this is a great charger. Charges quick, adopts to the size of the battery und is good for travel. Would be even nicer if one could select 0,5A - 1A - 2A.

I have some odd lithium ion battery sizes/lengths this charger works perfectly for them while also working great as a pocketable travel charger!

I wouldn't rely on this as my main charger but at $9 currently it's a really convenient way to be able to have a charger with you while traveling.

This charger is nice to keep in the car or a backpack where you don’t want to store a large charger. It doesn’t have all the features of a nice multi cell charger but it does what it’s meant to. I think $4-5 would be a more appropriate price but I’m glad I have it. The magnets are good.