My Noco GB70 takes ages to charge, in fact I had the unit plugged into to my USB port and it took almost 24 hours to charge, this length of time is ok if you are not in a rush, but if like me you use the unit to start my cars at my garage dealership then I cannot wait that long in between charges

I just discovered a fast charger made by Noco which will charge my Noco GB70 five times times faster than using a USB cable. See full details here