Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – BlitzWolf BW-P8 20000mAh QC3.0 PD3.0 Power Bank (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. I can’t tell you if this price is good – not enough records in my database, so I won’t judge. Only one coupon available!
Link: Banggood product page
Coupon (38.12 USD): aff7off
(CouponsFromChina.com tip: just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): 16P8, 20%BW, 502C6B, e2bcea, 12blitzw, p8bpww, p8bwpb, BG3CSUM, BGp8bw2, BGBWP8, BG9NY, 2020CNY, BGVDay10%off, BGMOTO30, BGBWP81, 4776d2, BGBWP8US
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – BlitzWolf BW-P8 20000mAh QC3.0 PD3.0 Power Bank (-3 USD)
Price history and price alert
Price history is not available for this item (not enough database records)! The lowest price was 34.84 USD though.
You can set price alert (for Banggood).