Battery Capacity Range: NiMH/NiCd: 100-50000mAh, Case Size: 135x110x60mm, NiMH/NiCd: 1-15cells Pb: 2-20V DJI: 3cells(LiHV), External Port: 1-6S Balance Socket-XH, Charge Voltage: LiPo: 4.18-4.25V/cell Lilon: 4.08-4.2V/cell, Reading Voltage Range: 0.1-26.1V/cell, AC Input Voltage: 100-240V, Weight: 390g, DC Input, Charge Current: 0.1A-8.0A, Balance Current: 300mA/cell Max, Battery Types/Cells: LiPo/Lilon/LiFe/LiHV: 1-6cells, DC Input Voltage: 11-18V, Charge Wattage: 80W, Detection for NiMH/NiCd: 3-15mV/cell / Default: 4mV/cell, Safety Timer: 1-120minutes off, Controls: Four Buttons, LiFe: 3.58-3.7V/cell LiHV: 4.25-4.35V/cell, Display Type: 2X16 LCD, Discharge Current: 0.1A-2.0A, Temperature Probe Socket., Battery Socket, LiPo/Lilon/LiFe/UHV: 100-50000mAh Pb: 100-50000mAh, Battery Cutoff Temperture: 20℃/68℃-80℃/176℃(adjustable), Case Material: Plastic.
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
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. ($68.00): BGGAL8
2. ($68.00): BGRCParts8
3. ($68.00): 8Couponsde
4. ($68.00): MVC8SPRING
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): BGss9%RC, Charger12, BGe680, BG6480, AFfbG10, BGBFAFF2019, BGCITYADS2019, BG10BC, BGAFF10OFF, bGhOnEy10, BGBC1, BGE68012, BgcLuBofErtA10, BGCuponation10, BGBCSpring1, BGDAVIS, BGHONEY2110, Parts8, BGRCBC11, BGSFBC1, Tabby20, BG1efeb0
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for SKYRC e680 80W 8A AC/DC Balance Charger. The lowest price was: $36.99.
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)).