Model P115K, Size L77xW25xH57mm, Output Type-C: 5V/3A /9V/2A;18W(Max), Capacity 9000mAh, Brand AWEI, Operating Temperature -10°C~50°C, Input Type-C: 5V/3A /9V/2A;18W(Max), Color Black, Energy conversion rate ≥ 75%, Name PD22.5W Quick Charge 9000mAh Power Bank, USB-A: 5V/2.4A /9V/2A /12V/1.5A(4.5V/5A;22.5W Max), Material Polymer Li-lon, Storage Temperature -20°C~60℃, Weight 170g.
Just check coupons out (with price alert and history). You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. There is no active coupon in my database right now (for Banggood). I’m not sure about the price, coz I have only 1 record(s) in my database.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGf9cace, BG1efeb0, BG00c906, BGJUNEGSG9
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
It’s a new item in our database, so I can’t create price history chart. We have saved this price in database: $16.99.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).