Intellivision 25 Video Game System

Bought this on Ebay a while a go as fully working handheld console. When it arrived, I tried switching it on but nothing happened even though it felt as though it had batteries in. At first, I thought that’s nice of the seller to include some for testing although why weren’t they working?

Popped off the battery cover to discover why….

They had left old batteries in there which had leaked and caused some corrosion. After some cleaning with solvent spray and a cotton bud, I managed to get it working again with a fresh set of batteries and left some negative feedback for the seller who seemed unconcerned at this.