Venom Fly 30C 1S 150mAh 3.7V LiPo Battery with E-flite MCX Plug x2 Pack Combo - Compare to E-flite EFLB1501S25 Fits Models Like: E-flite UMX Radian, UMX Spacewalker, Hobbyzone Sport Cub S, Duet, and Champ Venom Fly - Engineered for Flight, with "A" Grade Matched Cells for Unrivaled Performance. Spend Less Time Charging and More Time Flying. 5C Charge Capable for Significantly Faster Charging. Plug Type: E-Flite Blade MCX Backed with Proven US Support and Venom&apos;s Industry Leading Lifetime Battery Replacement Plan.