I bought the Xbox 360 Quick Charge Kit which comes with a rechargeable battery and an extra rechargeable battery because i was tired of buying batteries :P.

Its a must for every xbox 360 owner, also remember to get the quick charge kit.

People - don't buy this product. It's a complete rip off for 2 reasons.

First of all, the batteries do not hold a charge at all. If you let this sit around for even just one week without using it, all the juice will be gone.

Second, it's no cheaper than standard rechargeable batteries, so why not just use those to begin with? Not only will they work better, but you can also use them with any other product. This battery pack is propietary and only works with 360 controllers. If it was insanely awesome battery time it might be worth it, but it's not, so don't waste your money!

Bought mine from Deal Extreme, the chinese version, for 7 dollars. charges via usb hub or port. sweet, the 'soft will survive without mine money.

If you whant to keep playing and you dont wahnt to ahve lots of old batteries liying around this is worth every penny...
If you play a lot yull need this accesory

Saving is what calls out the most in this product, specially nowdays, when we've been talking about saving nature from chemicals.