Can you change the PS3 power supply to a Rechargeable battery?

I'm just wondering if it's possible, and if it is how could you do it? I know the PS3's watt usage is low, at the maximum its about 200 watts, so I'm just curious. If you can and you know how to do it or you know a website please share it :)

ThanksCan you change the PS3 power supply to a Rechargeable battery?
You could use a generator. You could even plug a tv in it at the same time! There are many on the market and I'm no expert, so perhaps you can look around on Amazon.com or ask another question here on YA about it.Can you change the PS3 power supply to a Rechargeable battery?
You can buy an emergency backup rechargeable battery (look at the Energizer web site) that provides AC and at least 400 W.