Initially full charge to about 20 minutes. After a month or two it's charging as any other battery 1/2 hours (even if the green light is on)
Real nice charger takes dc and qc input and outputs. I didn't buy the the plug so I can't get 18 min charge. I decided to use my Nintendo switch charger (15v3a) instead of my 5v 2.1a plug and I get about 25minutes and fully charged from dead. A common <2a 5v charger takes a LONG!!! time.
I been using this instead of my wall plug since this charges so quick plus charges phone real quick whail using it.
The item comes from China gets 2 different tracking numbers in the states won't update untill it hits land.
Loading it up works really fast and the 18 minutes are absolutely to the point (when using a wall plug that supports the power). Great when you are one the go and don't have much time for charging anything else up. For just 5000 mAH it's just a bit big and heavy compared to regular (slower) power banks. But I guess that's due to the newer technology. Just supported your crowdfunding for the 10000 mAH version and hope it will charge not only my phones but be more sufficient for my laptop as well.
I love it!
Very fast charge