Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
Configuration: 6S1P / 22.2V / 6 Cells, Discharge Plug: XT60, Net Weight(±20g): 222g, Charge Plug: JST-XHR, Minimum Capacity: 1400mAh, Discharge Rate: 130C, Max Burst Discharge Rate: 260C, Dimensions: 78mmx 39mmx 42mm (Lx Wx H)
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 code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($50.22): Cuponation9
2. ($50.77): BGRCParts8
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG75eefd, Parts8, BGRCBC11, BGGAL8, BGSFBC1, BG1JPTATTU03, BG1efeb0, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, BGJUNEGSG9, DealBGimpact, 9OFFSUMMER
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – TATTU R-Line Version 4.0 V4 22.2V 1400mAh 130C 6S RC Battery XT60 [EU] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for TATTU R-Line Version 4.0 V4 22.2V 1400mAh 130C 6S RC Battery XT60? 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)).