Use coupon and get 7.4V 37Wh for 20.69 USD (from Banggood). Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Latest coupon and price update (UTC):
Banggood (20.69 USD)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… Good or bad price? This price is great, coz it’s the lowest in CouponsFromChina database!
Link: Banggood product page
Price: 20.69 USD
20.69 USD – This is the best price ever noted in my database!
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): 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, hoNEYbGdeAlS, BGRCT10, BGJUNEGSG9, BGRADIORU
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – RadioMaster 2S 7.4V 37Wh 5000mah RC Battery JST-XH XT30 [EU] (-3 USD)
Aliexpress
Click here… to search for RadioMaster 2S 7.4V 37Wh 5000mah RC Battery JST-XH XT30 on Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for RadioMaster 2S 7.4V 37Wh 5000mah RC Battery JST-XH XT30.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).