If you own a PSP, you might want to uh, make sure your battery isn't expanding – Destructoid
How to Fix a Psp Battery! : 4 Steps (with Pictures) - Instructables
PSP 1004 rare problem orange led a | GBAtemp.net - The Independent Video Game Community
How to repair my psp when can't on power - PSP 1000 - iFixit
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
Psp-s340 seems to be working and connecting but not charging - explanation in comments : r/PSP
Sony PSP (PlayStation Portable) Specs and Details
PSP working with power supply but functioning batteries not detected - PSP 2000 - iFixit
3 Ways to Reset Your PSP - wikiHow
PSP Go review | Engadget
How to fix PSP if it won't turn on - YouTube
How to Charge Your PSP: 13 Steps (with Pictures) - wikiHow