Sealed battery box for use with all batteries up to 135ah, keeping them safe, dry & will also contain accidental acid spillage. In built battery health meter. Product Features · Perfect system for keeping all batteries dry when used outdoors · Houses all batteries up to 135Ah · Includes 1 output socket (Cigar lighter type) · Battery condition test meter · Battery master cut off switch · Lid & carry strap · External power take off terminals · Impact & acid resistant Polypropylene construction Technical Specification Dimensions: Outer box size: 450 x 310 x 290mm Inner box size: 356 x 208 x 228mm