Go down and check coupons out. Remember to check price history if it is available. What is the best price?
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):
Input voltage range: 9—49VDC, Maximum extra discharge power capacity: 1000W @33.5V/30A, Maximum discharge power capacity: 50W, Maximum charge/discharge current: 30A, Maximum current drain for balancing: >2.0A, Maximum input current limit: <35A, Maximum regenerative discharge power capacity: 1100W, Maximum charge power capacity: 1100W, Dimension: 97.5×64.5×37 ±0.5mm, Net weight: 200g, Display: 2.4 " IPS LCD (320×240)
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($181.82): Cuponation9
2. ($183.82): BGRCParts8
3. ($183.82): hoNEYbGdeAlS
4. ($183.82): DealBGimpact
apply code in your basket (cart) 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): BGiChargerX8, AFfbG10, BGBFAFF2019, BGCITYADS2019, BGVDay10%off, BG10BC, BGAFF10OFF, bGhOnEy10, BGBC1, BGdragonBoat, BGRCBC7, BGSS10%SW, bgshOOp10, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, 7bcdf9, BGCuponation10, BGBCSpring1, BGDAVIS, BGHONEY2110, Parts8, BGRCBC11, BGGAL8, BGSFBC1, Tabby20, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, BGToys1, BGRCT10, BGJUNEGSG9
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for iCharger X8 1100W 30A RC Battery Balance Charger.
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)).