powerbank with less mAh than phone..

[migles]

I got a powerbank (probably its a cheap one, since it was free) with a lithium battery capacity of 2.000mAh, outputs 5v 1000 mA if it does matter..
my phone specifications says it has a Li-Po 2600 mAh battery (non removable)

so, this means for completely recharge my phone i do need 2 power banks of the same time, right?

 

[Patxinco]

Maths says yes.