My wife shops early for Christmas and had bought some Mario RC cars for our grandchildren. Being well organised, these were wrapped some weeks ago (before I got a look at them). So come yesterday, the kids open them up to find that they are both DOA. I looked inside to find that they came with GoldenPower brand batteries all dated Feb 2024. They were all dead but once I replaced the batteries in No. 1 it worked fine. No. 2 was not so lucky. Several had leaked and that Kart was toast. No amount of cleaning up made any difference. It really bugs me when manufacturers put Alkaline batteries in products that may have a long life on the shelf before some poor soul buys them. To make matters worse, we are beyond the returns date on Amazon, so I guess we have to swallow the cost.