Replacement 1800mAh PSP-110 PSP110 Battery for Sony PSP Fat Portable Playstation PSP-1000, PSP-1001 - Newegg.com
PSP won't turn on without charger. Easy fix. Reset the battery MCU. open the battery shell, short B- and R letter for a couple of seconds. Done!!!. use clear tape to seal
Sony PSP - Kouen's Tech Corner
PSP 1000 Brick - Need advice - wololo.net/talk
How I managed to get my PSP battery to work. (Crappy knock-off battery) : r/ PSP
Dead PSP battery problem FIX working 100% :) work on (fake battery ) - YouTube