When I was updating this page the price was $18.53 for LiitoKala Lii-M4S Battery Charger (in Banggood). Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
LiitoKala Lii-M4S Battery Charger for 26700 18650 26650 21700 AA Touch Button LCD Display Test The Battery Charger Capacity
Latest coupon and price update (UTC):
Banggood ($18.53)
Banggood warehouse is located in China. There are no coupons for this product in Banggood. Is it good price? Hmmm, price is higher than average (which is $15.95 right now), so better set price alert down below…
Link: Banggood product page
Price: $18.53
Old coupons (from the oldest to the newest): BGcharles03, BGd57765, BGJune230
(these codes were not working in latest coupon update, but you can check them out anyway)
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 LiitoKala Lii-M4S Battery 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)).