$17.70 – 5V Type C 3.7V/1.2V.
When I was updating this page, then coupon price was $17.7 for LiitoKala Lii-M4 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?
Latest coupon and price update (UTC):
Banggood ($17.70)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. Low/high price? Hmmm, price is higher than average (which is $15.72 right now), so better set price alert down below…
Link: Banggood product page
Price: $17.7
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG20CHARGER, BGMBCBLE, BGAFF10OFF, BGCuponation10, 13f142, BGHONEY2110, BANGGOODSD, BGCCARG, BGcharles03, BGd57765
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for LiitoKala Lii-M4 Battery Charger is here. The lowest price was: $12.25.
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)).