Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood.
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!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): bGhOnEy10, BGXMI15, BGUSLION, BGUSLION23, bgshOOp10, BGAFF10OFF, BgoFErTaSchInA10, BgcLuBofErtA10, BG20CHARGER, BGMBCBLE, BGCuponation10, 13f142, BGHONEY2110, BGTR49295, BANGGOODSD, BGCCARG, BG85d5c6, 2022ACTIESNL, Terence, Tabby20, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for USLION 40W 8A QC3.0 Charger.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).