I found the ultrax battery for my Yuneec Typhoon H drone, 6300mAh 4S battery only $51.89 / pack. It's the cheapest and the test is very good ! Now you can save extra 10% if buy 2 packs. (I am not a advertiser)
Ultrax 6300mAh 14.8v 4S replacement lipo battery for Yuneec Typhoon H drone RC...
