hey guys i have a madcatz screen that has a 7.5 v power plug in to turn on will this screen word for my gamecube portable screen? and is there any stores (not online) that sell good batteries for a gamecube portable?

1. Probably
2. Probably not. You could try camera stores, if they even exist anymore.

camera store as in future shop?

Exactly. I know of two camera stores where I am. Two. And I live in a big city.
If you don't like online shopping, try a local battery store. Not sure about other places, but I've got a great place that does custom cells and packs for a good price. Plus, it's offline, although I prefer online. I like it when I buy something and all I need to do is walk to the door when it arrives a couple days later. Sure, you don't get the instant satisfaction of a product you can hold, but it saves time, gas and in most cases, money.

thanks but can u tell me which type of batteries i can use at future shop? that would be very helpful

Futureshop is not a battery store. It is an electronics store.

Buy them online at [url]Batteryspace.com[/url]

can i use these batteries? http://www.bestbuy.ca/en-CA/product/can ... 8fe5e4en02

Your Gamecube will last ~15 min.

Just go online and buy from a BATTERY STORE. I'm trying to help you by telling you there is no easier way that efficiently works.
Batteryspace.com is a good one.