Gaming need powerful psp slim battery

[godsakes]

i know DX sell a lot of these 3rd party slim batteries which claim to be double the power of the orginal sony's but i don't have much faith in the advertised power as most reviewer claim they have worse performance than the orginals.

can anyone recommend a decent & more powerful battery for the slim?

 

[Midna]

Lest I be mistaken, a psp phat battery used in a slim will increase the performance significantly. Be warned, the phat battery is bigger, and will not fit in the psp without a custom battery cover.