Ni-XX Cell Count: 1~15s, Balance Current Drain: 200mAh/cell, Weight: 1211g, Cooling: Dual Fan, Charge Current Range: 0.1~20.0A, Discharge Power: 2x25watt, Charging Output: 2x 400w (800W Total), Dimensions: 200x140x55mm, Input Voltage: 12~18v DC, Li-XX Cell Count: 1~6s, Pb Battery Voltage: 2~20v, Intelligent Temp Control: Yes, Battery Setup Memories: 10, Discharge Current: 0.1~5.0A.
Price history, coupons and price alert are available on this page. Best price?
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.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($92.43): BGGAL8
2. ($92.43): BGRCParts8
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): Charger12, 502C6B, PU15, pu15, AFfbG10, BGBFAFF2019, BGCITYADS2019, BG10BC, BGMPB2020, BGAFF10OFF, bGhOnEy10, BGBC1, BGdragonBoat, BGRCBC7, BGSS10%SW, bgshOOp10, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, BGBCSpring1, BGDAVIS, BGHONEY2110, Parts8, BGRCBC11, BGSFBC1
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for SkyRC Extreme 400WX2 20A RC Battery Charger. The lowest price was: $59.99.
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)).