Get Car Batteries, which are now 20% off when you apply code P20 at Advance Auto Parts. For example, the AutoCraft Automotive Battery, Group Size 24F, 550 CCA drops from $91.99 to $73.59 with coupon. If your battery is priced at $100 or more, you can save even more money by using code TRT41 to save $40 off on your order. With this code, your AutoCraft Gold Battery, Group Size 75-3, 700 CCA originally $117.99 drops to $78.00. There is an $18 core charge for every battery you buy. This amount will be refunded when you bring your old battery to the store when you pick up your new battery. You can also bring the battery part to the store with your receipt or mail the part back with your packaging slip as noted on the site. Shipping is free with in-store pickup or free on orders over $75. Sales tax is charged in most states. Note: Max discount for 20% off coupon is $50.