Home Depot offers the Husky 250-amp 20-foot UL-Listed Booster Cable, model no. 0160420-UL1, for $19.97. Choose in-store pickup to dodge the $6.24 shipping fee. That's tied with our mention from two weeks ago and the lowest price we could find by $32. It features 4-gauge copper-clad aluminum wire and vinyl-coated clamps.