You need to have a Magic Memory Stick for the Pandora Battery install custom firmware. The Magic Memory Stick has the custom firmware on it. The Pandora Battery places the PSP into service mode so the PSP can boot off of the Magic Memory Stick. You can purchase a Magic Memory Stick HERE
This battery is Awesome and exclusive to PandoraSales.com! With just a push of the button on the battery it can be a Pandora or Regular Battery. It also has a built-in LED indicator showing the Pandora mode or battery charge.
Super easy to use.
Extended life battery will last twice as long as our Slim LED Pandora battery. It is a (2400 mAh)
Extended life Slim LED Pandora Battery will work with any Slim PSP(not PSP 3000 or PSP 1000).
This battery will fit perfectly into your Slim PSP. It is the same size as your original.
Our Pandora Batteries are compatible with both FAT and SLIM PSP's. These Pandora Battery's will allow you to install custom firmware with the use of a MAGIC Memory Stick. (Required and Sold Seperately)