Aliexpress
Click here… to search for BlitzWolf BW-P11 Upgraded 20000mAh 20W PD 18W QC3.0 Power Bank on Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-P11 Upgraded 20000mAh 20W PD 18W QC3.0 Power Bank [EU] (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database.
Link: Banggood product page
Price: -3 USD
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!
Old coupons (from the oldest to the newest): 8BGwbg2204, BG20c8ca, tRaDetRaCKeR, 8wEbgaInS5, BG260a33, BGJUNEGSG9, BG42b973, Cuponation9
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-P11 Upgraded 20000mAh 20W PD 18W QC3.0 Power Bank [EU] (-3 USD)
Price history and price alert
Do you need price history chart (for all/most countries) for BlitzWolf BW-P11 Upgraded 20000mAh 20W PD 18W QC3.0 Power Bank? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).