Well I've had my mini pcc for a little over a month now probably, and I've noticed it's been taking longer and longer to charge a kicked battery. Last night I was charging my white battery, and after about 2 1/2 to 3 hours of charging, it still wasn't charged, and the PCC after coming off a full charge had one battery bar left. So I plugged it in overnight, and when I woke up this morning it was still charging the battery, and even though the PCC itself was fully charged the entire outer casing was still lit up. I unplugged it, and it charged the battery for about ten minutes then shut off. Now I plugged it back in to the USB just to see what would happen and the lights remain on again, including the tip of the battery.... I'm positive this is a smart battery, and it shuts off when charged even when plugged it, because it has done that every other time but now. Hmmmm