Batteries Charger full view

I tried to take some photos over the weekend with regular alkanline batteries and none of the ones I had around had enough charge left to power the camera for more than 1 picture. I tried about 10 old AAs I had laying around and none of them worked. So I finally got around to buying some rechargable AA batteries and a charger. Finally I don’t have to worry about buying more batteries when my mouse, keyboard, camera, soldering iron, R/C controller, etc. run low.

The batteries that were in my Gameboy Color were so old they still have testers on the side! Any ideas why the stopped putting those on?