The plug is in its original state so loosely on the 3DS that charging for luck is. You have to shake a little before the charging indicator light on the DS blows the cord. After that you should avoid to move the device, otherwise the contact is immediately interrupted again. A shop and simultaneous playing is so impossible! I have the plug with a small forceps slightly compressed, so that the contacts at the now taut and contact problems are eliminated. But since you can not expect from any buyer that he nachbiegt the plug, there are two points off of me! Anyone with small pliers however familiar ;-) can buy the cable safely.
Addendum of 15:10:14: The seller must have thought I was totally dissatisfied with the cable and sent me for free without prompting a replacement cable to - really great service! However, the new cables showed the same symptoms as the first cable, - but after a tiny Nachbiegeoperation I now have two reliable functioning charging cable, what more could you want!