Hello, I had the chance to test through the circle: embassies of "wanting more" to test the charger and rechargeable batteries Duracell AA and AAA. I find it very good. The charger would be better flashy color but apart ca it loads quickly and batteries hold charge very well even in a gourmet digital camera batteries. Conventional batteries will discharge in less than fifteen minutes in this apparatus the Duracell is held one week, one afternoon nonstop picture! I therefore strongly recommend this product.