Yesterday I bought an Anker Powercore speed 20100 PD to use on my upcoming vacation. I connected the a Quickcharge 3.0 charger via a USB power meter but I could not reach anything above 5.14v and 0.45A.
I used an Aukey 4 port quick charge 3.0 adapter and tried several high quality cables, Aukey, Anker, original Samsung Note 9 cable etc but to no avail.
Than I switched chargers, some original Samsung adaptive fast chargers, Blitzwolf quickcharge 3.0 and normal 2.4A output chargers but still no charge current higher than 0.45A and voltages higher than ±5v.
Is my Powercore defective?
Thanks for any help provided!