Put an Interstate group 78 battery put in our 2001 Impala in May 2019, six months later it failed to start on November 3 2019. The next day Nov 4 2019 I had the charging system checked out and it is OK, and there are no high loads on the battery when the engine is off. Had a the battery replaced under warranty with another Interstate group 78 on November 4 2019, it failed to start yesterday on November 14 2019 with less than 2 weeks of use. Had charging system checked out again and all is OK, and there are no high loads on the battery when the engine is off. The place I have been using load checked the other new Interstate batteries that they had in the shop and found another bad new Interstate battery in their supply. They also said that Interstate rotates the batteries in their shop so that there are never any requiring a charge before they are used. They replaced my second dead Interstate battery with another new group 78 Interstate battery that load tested good. The garage where this happened said that Interstate has recently changed manufacturers. They use to be made by Johnson, and now they are made by Exide. So if you have an Interstate battery that is made by Exide even though it is not very old, it might be a good idea to get it load tested so it does not leave you stranded. And now that they are being made by Exide it would be a good idea to have them load tested before you put any new one in your vehicle. Somewhere somehow there is something wrong with the new Exide Interstate batteries.