Why, for anything in the world, is in these batteries in lying condition not on the envelope to identify whether the positive pole is up or down? At Sanyo are imbecility designer at work, where the function is unknown or do not care and those of the outward appearance more important than the ergonomics? As if it was bad and unnecessary would not be enough that the batteries in devices that require more of them, always have to be inserted alternately. My suggestion: the device manufacturers like the battery compartments so interconnecting that the battery / batteries are all appeal in the same direction, and the manufacturer of the battery / batteries may provide the side of the positive pole with a red ring or other clear mark, so you when changing not only tedious must seek, where at the right to be engaged energizer, is front or rear up or down. To the battery itself: Since 2010 I buy from conviction only "eneloop". Whether the black better than the white, and whether the (lack of experience awarded from pure benevolence) four stars are worth, has to show, however, only. The white labeling is in any case rather obvious.