According to my DB the lowest price is $6.29 for 66W 4-Port USB PD Car Charger (in Banggood). Check coupons or create price alert down below. What is best price?
66W 4-Port USB PD Car Charger Adapter Dual 2.4A USB-A PD QC3.0 Fast Charging with Blue LED for iPhone 13 14 14 Pro Max for Huawei Mate50 for Samsung Galaxy S22 for Redmi K60 for OPPO Reno9 – PD+QC3.0+2USB
Latest coupon and price update (UTC):
Banggood ($6.29)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. What about the price? It looks like it’s a good price (lower than average ($6.99)).
Link: Banggood product page
Price: $6.29
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG589b2e
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for 66W 4-Port USB PD Car Charger.
Price records source(s): Banggood
Click on image to enlarge. 
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)).