Check coupons or create price alert down below. You probably want to know what is the best price?
Li-ion: 26650, 22650, 18650, 17670, 18490, 17500, 17335, 16340 (RCR123A), 14500, Ni-MH / Ni-CD: AA, AAA, C, Input voltage: AC 100-240V, 50/60Hz, DC 12V, Output voltage: 4.2V + / – 1pct, 1.48V + / – 1pct, Output current: 500mAx 2
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($8.99): SCS3
2. ($11.04): 502C6B
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Price history and price alert
Check out price history chart (for all/most countries) for Skilhunt M2 Battery Charger.
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)).