Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
11.4V 4250mah LiHV Battery For Swellpro Spry, Spry+ Drone Battery High Quality Helicopter Rechargeable 11.4V Lipo Battery | $43.10 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Image Transmission Range 500m, Max Flying Range 800m from remote controller, Brushless Motors 2206 1600KV, Flight Time 15~17 mins
Banggood
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now…
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG094ac0, CouponsDE
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for SwellPro Spry Drone with 2 Batteries? 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)).