$19.03 – RadioMaster 2S 7.4V 37Wh 5000mah RC Battery JST-XH XT30 (Banggood, Aliexpress: Connector: JST-XH and XT30 Plug, Charge current: Max 2amp, Item Name: Li-ion Battery, Watt Hours: 37wh, Voltage: 7.4v, Weight: 150g, Capacity: 5000mah, Brand Name: RadioMaster, Size: 72x 42x 22 mm, Cells: 2x 21700 Li-ion 3.7v 18.5Wh (the best price with coupon)).
When I was updating this page, then coupon price was $19.03 for RadioMaster 2S 7.4V 37Wh 5000mah RC Battery JST-XH XT30 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Latest price update (UTC time):
Banggood ($19.03)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. What about the price? IMHO this is a good price, coz it’s lower than average ($21.84)
Link: Banggood product page
Price: $19.03
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, hoNEYbGdeAlS, BGRCT10, BGJUNEGSG9, BGRADIORU
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – RadioMaster 2S 7.4V 37Wh 5000mah RC Battery JST-XH XT30 [EU] ($-3)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for RadioMaster 2S 7.4V 37Wh 5000mah RC Battery JST-XH XT30. The lowest price was: $16.55.
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)).