This charger is perfect for Rayovac batteries. It has indicator lights that show the charge level. I like the old style better than the red LEDs as they turn off when charging is complete. This changes the display (continuous flashing). Batteries get very hot when charging, but this is normal. Rayovac batteries are super batteries. They store their charge - unlike other NiCd batteries - in the camera or device and in a zippered pocket in my camera bag. I currently only use these types of batteries in my Canon i5is and accompanying Canon flash and in noise canceling (AAA) headphones. Durability and lifespan are exceptional. The charger can charge AAA or AA and even pairs of each type (e.g. 2 x AAA and 2 x AA).
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