$49.35 – EU Plug, Input Voltage: AC 100~240V 50/60HZ, DC 12V, Output Voltage: 5V, Input Current: 1A/3A, Output Current: 3A/1.5A.
$49.35 – that is current price with coupon for Nitecore SC4 Battery Charger (in Banggood). You can create price alert here, copy coupons and view price history. Best price?
Latest coupon code price check (UTC time):
Banggood ($49.35)
Banggood warehouse is located in China. Is it expensive? This price is higher than average price ($36.18) for this item. There is one great coupon!
Link: Banggood product page
Price without coupon: $51.95
1. ($49.35): BGTORCH10
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): bcnlxk, dba0fb, BGSC4, CMBB, BCNLXK, BGTBFL, M4BG, BGNSC4, BGTBD, BGd57765
(there’s a little possibility that old coupon will work)
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
Here is price history (for all/most countries) for Nitecore SC4 Battery Charger. The lowest price was: $28.47.
Price records source(s): Gearbest, 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)).