Composite Adjustable Battery Holder & Backstop offer just and secure battery installation without tape and without side effects on framework flex. The system controls the keeping of this pack in the framework while in addition reducing the battery power's affect framework flex, ultimately causing more constant maneuvering and stability. Smart battery pack holders are especially designed for LiPo batteries and so are strengthened for harder results. The battery holders prevent the batteries from going under battle conditions and crashes. The battery backstop system was in fact redesigned to be utilized utilizing the increasingly typical shorty batteries. Now included in engine mount for effortless set up and modification. The battery backstop prevents batteries from relocating any sort of accident. Inside front side part, the backstop is mounted on the servo mount; in backside toward engine mount.