PCB for Custom Powerbank

Hello everybody,

For a project I need to build a custom 5000mAh power bank with 2 USB (1A) ports and a microusb, 4 leds to indicate the battery level. I will need to make a small batch of these (100-200 units), hopefully without wasting too much money on it.

I have these options: 

- buying a batch of powerbanks, taking them apart, and putting the pcb+battery in my custom casing.
(which I want to avoid)

- buying the pcb that already has 2 usb ports, 1 charging port, and 4 leds, and the battery separately and putting them together in my custom case
(sounds good)

- creating a new pcb for it
(which I want to avoid)

- any other ideas are welcome 

I'd like to keep the cost under 10$ for the circuit board and battery if possible (if impossible, as close to that as possible).

I saw some power bank pcb/ic boards online for 1$, but all from unreliable sources, do you have any idea where I can buy quality circuits of this kind? maybe without the usb ports soldered on so I can place them in my case where I want them to be and just solder a small cable from the usb ports to the board?

Same thing goes for the battery, do you have any good sources of batteries?

Thanks a lot!

Hello! Mike!
I've gone through your requirements regarding PCB for Custom PowerBank..
you've mentioned about very low price under 10$
other technical requirements like 2 usb ports..
one charging ports and 4 leds...

I've come up with an amazing deal for you.. yes i'm talking about custom power bank
(brandedbatteries.com) All you need to go to our online store and buy your desired power bank!

Hi Brain,

Could please share your website, we need PCB also and pricing

I will be interested to hear how this works out for you in terms of time and cost.
My feeling is you would probably be able to buy an off the shelf unit that will come close to doing what you want,
cheers,
Richard