RECOMMENDED to use the supplied xiaomi USB cable and charge with charger with current output above 2000mA (2A).

When using charger with 1000mA output, 10400mAh pb will be fully charged in about 10400/1000=10.4 hour
When using charger with 2000mA output, 10400mAh pb will be fully charged in about 10400/2000=5.2 hour
My colleague tried to charge using laptop USB, it does not fully charge even after 24 hours! She starts cursing 'China product cannot trust one, new unit already defective, why you recommend me to buy, cheap thing no good!'. So now, when some brand-conscious friend ask about xiaomi pb or phone, I just scare them that xiaomi may burst into flame, don't buy.

I tried using a 2000mA output charger with my original samsung USB cable, my 10400mAh pb needs 7-8 hours to fully charge! When switch to xiaomi USB cable, fully charge in less than 6 hours.

This post has been edited by cactuscch: Jul 26 2014, 06:52 PM

I use this 4A charger to charge both pb at maximum speed.
http://static.mydeal.com.my/sites/default/files/6portusb.jpg

I monitor using Elixir 2.

Received 2 units redmi note from Fedex at about 10am. One more from UPS still in Cheap Lap Kok, HK!