You can create price alert here, copy coupons and view price history. What is the best price?
Item Brand: Wltoys, Product Weigh: About 131g, Capacity: 2200mAh, Battery Size: Length is 100*34*15mm, Main Colors: Blue, Packaging Weight: About 225g, Continuous Discharge Rate: 20C, Item Number: K949-78, Item Name: 7.4V 2200mAh 20C 2S T Plug Lipo Battery
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 and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. 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
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): BG7901d3, BGf4eee6, BGacebaa, BG10WLRC, BGd51c51, BGe7fec5, BG172312
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for 2Pcs Wltoys K949-78 7.4V 2200mAh 20C 2S RC Batteries T Plug [EU] is here.
Price records source(s): Banggood
Click on image to enlarge. ![Price history for 2Pcs Wltoys K949-78 7.4V 2200mAh 20C 2S RC Batteries T Plug [EU]](https://couponsfromchina.com/pricehistory/History37840.png "2Pcs Wltoys K949-78 7.4V 2200mAh 20C 2S RC Batteries T Plug [EU] price history")
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)).