I understood going on the web that Panasonic took over this formerly manufactured by Sanyo. It should be known before for the same price, guaranteed Sanyo 2100 mAh load. Through a profressionnel charger, I could measure the charge of 4 batteries that did not exceed the 1700 mAh against 1900 mAh yet announced. The load level, we are frankly far older models. I really feel that the quality decreases over time.