Product Overview Cole Hersee 48090 Heavy Duty Battery Isolator, 90A Cole Hersee 48090 Heavy Duty Battery Isolator, 90AFor DC negative ground electrical systems. Isolate each battery to prevent the battery with the higher charge from draining into the battery with the lower charge. Allow two batteries to be charged simultaneously from a single power source. 90 Amp rating per leg, 2 legs. Three 1/4" stud terminals, 6-1/2" L x 3-1/4" W x 2-13/6" H. Product Details Brand: Cole Hersee Product Type: Battery Management Manufacturer Part Number: 48090-BX UPC: 632850311205 Compare the manufacturer part number, dimensions, fitment, voltage, material, and included components with your application before ordering. Enjoy free standard shipping on all U.S. orders, including Alaska, Puerto Rico, Guam, U.S. territories and protectorates, and eligible P.O. boxes.