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.
Check coupons or create price alert down below. Do you want to know what the best price is?
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 code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($92.43): BGGAL8
2. ($92.43): BGRCParts8
you should apply the coupon in your cart 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
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for SkyRC Extreme 400WX2 20A RC Battery Charger is here. 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)).