Venom Fly 30C 3S 800mAh 11.1V LiPo Battery with JST Plug x4 Pack Combo - Compare to E-flite EFLB8003SJ30 Fits Models Like: Align T-REX 250, Blade 200 SR X, and 230s 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: JST Backed with Proven US Support and Venom&apos;s Industry Leading Lifetime Battery Replacement Plan.