When I was updating this page the price was $18.99 for 2 in 1 ROCKBROS 5000mAh Battery Bike Headlight (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is the best price?
2 in 1 ROCKBROS 5000mAh Battery Bike Headlight Type-C IPX6 Waterproof 4 Light Modes Power Bank Phone Front Light for Night Cycling Camping
Latest price update (UTC time):
Banggood ($18.99)
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database. But wait a sec… Is it a good price? From what I can see this price is higher than average price ($18.66).
Link: Banggood product page
Price: $18.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGTYFRI7
(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
Do you need price history chart (for all/most countries) for 2 in 1 ROCKBROS 5000mAh Battery Bike Headlight? There we go.
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)).