power bank thats compatible with my xperia z1

[ibisa]

What is the compatible power bank mah do i need to use enable to have atleast 3x charging capacity? Tnx

[SergioPL1]

Z1 has a 3000 mAh battery. Assuming 90% efficiency you need at least 10000 MAh to get 3 full charges.

But I would go for something at least 12000 mAh to avoid killing powerbank itself. It should also have 1500 mA or more maximum power output.