XRAY have introduced a fully adjustable graphite and brass battery holder for the T4. Adjustable battery holder allows to move the batteries front and rear but also left to right for easy and comfortable weight transfer adjustment. The holder allows to move the battery which changes the Front/Rear weight balance by 4mm. The brass material adds extra 7.5g weight for tuning the side-to-side balance weight to the battery side for tuning side-to-side balance. Design of the battery holder eliminates any negative chassis flex.