Xbox 360 Halo 3 Wireless Headset

I brought the wireless headset (because everything in my home is wireless) and it was working perectly, it was chargeing up quickly and I was hearing and speaking to people all over the world with pure clear voice and sound but then something odd happened the battary died and it had to be recharged for the 5th time since I first got it but it wouldn't rechare at all, so I went and tryed it out on 3 other xbox 360's which belonged to my girl friend, my little brother and a friend of mine in wales. And still it would NOT RECHARGE !!!!! but why did it break so easy I don't know. All I can say is the headset is great but the rechargeable battary is RUBBISH !!!!!!