Not sure if the item I received was "defective", but it's claimed 10,000mah capacity was all but depleted charging a note 10+, and the power bank refuses to charge any of my devices wirelessly. Power bank was purchased off woot.com.

I sent to of them back because the charger cable head was too large for the adapter slot on both. I would have loved to have one that would do as advertised.

You can't tell when it's charging. It's like a flaky boyfriend