When I was updating this page, then coupon price was $124.99 for ISDT K2 Air AC 200W DC 500Wx2 20A RC Charger (in Banggood). Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Latest coupon code price check (UTC time):
ISDT K2 Air AC 200W DC 500Wx2 20A Dual Channel Balance Lipo Charger Discharger for Lipo NiMh Pb Battery – EU Plug
Banggood ($124.99)
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood. Is it a reasonable price for this item? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $122.99)
Link: Banggood product page
Price: $124.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGK2Air05, BGMatt2022, BG589b2e, BGAUGUST8, BGCAPITALOS8, BG8FORMULAMX, BGBFDAY8, BGNEWYEAR8, BGSPRING8OFF, BGHONEYSP, BGESJY8, BGALL8
(you can check these old coupons out, but these probably won’t work)
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
Here is price history (for all/most countries) for ISDT K2 Air AC 200W DC 500Wx2 20A RC 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)).