I just bot a brand new kanger dripbox 160 today along with 2 li-ion 18650 batteries (ones pictured) I first didn’t realize or know (guy who sold it to me said no it comes with a USB charger you don’t need battery chargers.) until I read up on this, USB charging is bad. Of course after draining what was on the batteries when I bot them I plugged the unit into the USB charger. I left until the battery symbol was full and was gone on the device (1 hr later or so)
After fully charged it died maybe 20-30 minutes of actual use. At only 55 watts :,( I then bot chargers. I let them charge for 2? Or so hrs I plugged into unit again and tried using it as I was excited and wanted to try. It does within 15-20 long drags off of the unit at 55-60 watts ( when put batteries in there where two bars after few hits drained)
So! It has been 2 hrs again and I am letting them till chargers turn green. But will they work ugh I don’t have anymore money to spend :,( asshole told me usb charge is fine!
So are they fried or USB just not charge it properly? The device itself works brilliantly am really happy with it. But batteries I think I broke them please help
Please help sorry for the long ramble thank you to any who reads and helps out


So just the fact that it's a battery store, means NOTHING.
So trust them to tell me which batteries won't go boom too likely? Sure, I'll trust them.