When I was updating this page the price was 86.99 USD for FIMI X8 SE RC Battery 11.4V 4500mAh (in Banggood). Just check coupons out (with price alert and history). You probably want to know what is the best price?
Latest price update (UTC time):
Banggood (86.99 USD)
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood). The question is – is it a good price? This price is higher than average price (78.98 USD) for this item.
Link: Banggood product page
Price: 86.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGXMDXMFM8SEB, bgssaff9, BGFIMIX8B, BGFIMIX8BA, BGX8BATTERY, AFfbG10, BGX8SE20BA, BGdragonBoat, BGSS10%SW, BGX8SEBR, BGX8SETTY, BGAFF10OFF, BgcLuBofErtA10, BGX8SEBRQ, bGhOnEy10, BGFIMIX8B11, BGBAX8SE, BGCZX8BA, BGHONEY2110, BG339366, BG1fa26a, BGf6bed8, BG784224, BG1c0f57, BG915b5d, 8BGwbg2204, BG07e94a, BG04bc01, hoNEYbGdeAlS, BGRCT10, BGJUNEGSG9, BG6f120d, BG8ReviTrage, Cuponation9, BgGoodie9, BGMatt2022, BGGutscheine, BGToys8, ADMITADBLACK, BG8OFFCOUPON, TTBLACK5, BGBFDAY8, BGSPRING8OFF, BGHONEYSP
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for FIMI X8 SE RC Battery 11.4V 4500mAh.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).