New Color Same Problem

I bought the Nitendo DS Lite last year for my boy, and he loves it. The duo screen is great. It's nice that you can play the Game Boy Advanced games on this console. To be honest, one of the things I liked about the DS Lite is that my son get to play the upgrated version of the Mario Bros game, and all the things you get to do; for instance, blow on the mic to fill up ballons in the Mario Kart game. The only problem I have with the new Nitendo DS Lite is that is deffective where the cable goes in to charge the battery. The first DS I bought had that problem and only lasted five months, and the second one that I bought had the same problem. Maybe it just the ones that I bougth. I am going to buy another one, and hopefully the next one will be good.