I have checked all old coupons and price is 19.99 USD for Scooter Charger (in Banggood). You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood (19.99 USD)
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it? Well, is it a good price anyway? Current price is the lowest in history (according to CouponsFromChina database)!
Link: Banggood product page
Price: 19.99 USD
19.99 USD – This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG2c88a3, BG53ded1
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
Click here… to search for LAOTIE 72V Electric Scooter Charger For ES40 Pro TI40 Pro on Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for LAOTIE 72V Electric Scooter Charger For ES40 Pro TI40 Pro.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).