The Hexfly 30C 2S 7.4V 5800mAh LiPo Battery Banana Plug Hard Case is the mother of all Hexfly LiPos, with its 5800mAh power rating. Hexfly is the battery brand recommended in 2011 by Redcat Racing for their electric vehicles that come with a red 4.0mm banana connector. Note: If you have a Redcat Racing truck with a white plug, then you have a Tamiya plug instead.