I think there must be a bit of a flaw in my white one or they're just made differently. I have them both plugged in and red. On the black with the lid open I have to really look hard to see a pin ..... size red dot on the light side of the battery slot by the connection area. On the white one, that same spot is big.. I mean big, intensity and size of a tiny keychain flash light.. and the red light shines all the way to the outside wall of the battery connection area on the floor of the PCC.so under the slot. Maybe the battery slot walls weren't machine down toward the battery connection far enough letting too much light shine through? I would have to find something to measure the gaps. But, if I put it in the dark with no battery in the slot, where the blue LED light would be shines a dull red or green. The black one, same situation, shows no light at all there in the dark. Anyway, when charging a battery, the PCC lights dull the blue so much I can't tell if its charged. Its especially hard to tell out in the daylight like when in the car. And, yeh, I don't like the light shining through the white plastic either.