Can these Battery and Screen be used for Portable ps2/n64

[wesley_76_2]

eey guys,

im looking towards making my ps2 portable and doing the n64 for practise as this is my first attempt to try this.
but well you have to start somewhere.

i found this battery pack thats 9v and whops out 8500mah. i know this is far more then the ps2 unit does but wont this mean it will simply last longer ?
here is the link on ebay :
http://cgi.ebay.nl/5V-9V-12V-DC-Portabl ... 33653e1807

and this screen it has 2 screens with it its on sale currently @ a local store here.
http://www.akai.nl/?m=public&a=p_specs_ ... 1&service=" onclick="window.open(this.href);return false;

i was planning to get the PSone screen but this would give me 2 screens if it works ofcourse.
let me know and thanks in advance for the advice

Regards,
Wesley762

[Cojiro]

Battery will work.

You can get two psone screens for less than that price. Plus widescreen looks weird on the n64.