Viofo Car Charger (Banggood, Aliexpress: Connector USB 2.0, Size 80*30*81mm, Color Black, Circuit board Intelligent IC, could automatic recognition the exact output, Net weight 223g, Output DC5V 9.6A, Input DC12-24V (the best price with coupon)).
Go down and check coupons out. Remember to check price history if it is available. What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
1. ($15.21): BGCARELEC
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 502C6B, e2bcea, BgAuMotor, b71c67, AM15prime, AMPrime01, BGCar1val, BGAutos
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for Viofo Car Charger. The lowest price was: $12.79.
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)).