Venom Fly 30C 3S 3000mAh 11.1V LiPo Battery with UNI 2.0 Plug (XT60/Deans/EC3) x4 Packs Compare to E-flite EFLB30003S30 Fits Models Like: E-flite T-28 Trojan 1.2M, Apprentice S 15e, Pulse 15e, and Shoestring 15e 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: Venom UNI 2.0 Plug. Compatible with XT60 Plug, Deans Plug & EC3 Plug. Backed with Proven US Support and Venom's Industry Leading Lifetime Battery Replacement Plan.