Running a bigger battery in the utes or work truck and the standard tray doesn't cover it? You're either bolting a custom plate together or living with a battery that shifts on every pothole. This large Jaycar tray handles batteries up to 330mm. Same 1.2mm mild steel, same vinyl coat that takes oil and acid without flaking. Cruciform slots drop into your existing chassis holes, and the hold-down rod cutouts keep the battery locked down properly. One thing to note: not recommended for marine salt water. For that, the HB8100 box is your better call