Nationwide warranty on Interstate Batteries. 

6 TIPS for Buying Batteries

1. Check your vehicle manual to learn original equipment manufacturer recommendations for the battery's Group size, Cold Cranking Amps (CAA) and Reserve Capacity requirements.
2. Beware of products that display only ratings like Hot Cranking Amps (HCA) or Cranking Amps (CA).
3. Check for freshness.  We check batteries on a regular basis so that you'll always get POWER FAST.....BUILT TO LAST!.
4. Check out the battery warranty.   We offer an 18-month free replacement warranty on all automotive batteries.
5. Consider value, not just price.  The old adage "you get what you pay for" can be very true for batteries.
6. If your battery tests weak, buy new battery before your old one fails.  You can easily save yourself an expensive tow bill or repair.  Have your battery tested before you leave on vacation and at periodic intervals.