I bought this PSP 1000 on Ebay for 13$ (from Japan, shipping included). It was bricked but I managed to fix it! Works like a charm now : r/PSP
Pandora Battery & Massive 64GB Magic Stick for Sony PSP UNBRICKER & System Tools | eBay
Pandora's Battery (unbrick Your PSP) | Hackaday
Pandora Battery & Massive 64GB Magic Stick for Sony PSP UNBRICKER & System Tools | eBay
Sony PSP Video Game Batteries for sale | eBay
Battery for PSP SLIM & LITE PSP 2000 for PSP 2004 for PSP 3000 for PSP 3004 new | eBay
Sony PSP Video Game Batteries for sale | eBay
Pandora Battery & Massive 64GB Magic Stick for Sony PSP UNBRICKER & System Tools | eBay
Sony PSP Video Game Batteries for sale | eBay
So I'm in a really bad situation atm. My psp 1000 has the rsod. I have the magic memory stick but I don't have the pandora battery. I found a pandora's battery
Sony PSP-1000 Replacement Battery for sale online | eBay