Go down and check coupons out. Remember to check price history if it is available. What is the best price?
Size “Product Size (Opened Size): 26*5.8*1.2in
Product Size (Closed Size): 5.8*6*2.1in”, Material Waterproof Nylon +Sunpower Solar Panel, Color Grey, Type Solar Mobile Phone Chargers, Interface 1x USB A port, Weight 0.79Ib / 360g, Brand CHOETECH
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
1. ($61.57): BGCCARG
you should apply the coupon in your cart 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
Old coupons (from the oldest to the newest): BANGGOODSD
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for CHOETECH 14W Foldable Solar Panel.
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)).