Lance McDonald on Twitter: "New Years Eve means it's time for our annual “dig your PSP out of storage and throw out any swollen batteries” ritual! Just checked mine, two were so
PSP owners beware: you might want to check your PlayStation Portable battery | TechRadar
My PSP battery expanded and broke the shell : r/mildlyinteresting
PSP owners have noticed the batteries have swelled over time - - Gamereactor
Replacing a Dead PSP 1000 Battery via Amazon - The Results - YouTube
Amazon.com: Pickle Power PSP-2000 Battery and LED Display Charger for Sony PSP 2000/3000 PSP-S110 Console PSP-3001 PSP-3002 PSP-3000 PSP-3004 PSP-2001 PSP-2002 PSP-2003 : Video Games
For those interested in seeing the inside of a swollen PSP battery, here you go. : r/PSP
If you own a PSP, you might want to uh, make sure your battery isn't expanding – Destructoid
File:Psp-battery-types.jpg - 维基百科,自由的百科全书
Amazon.com: Uwayor PSP 2000 Rechargeable Battery for Sony PSP 2000 PSP 3000 PSP-S110 Console, 1200mAh 3.6V(NOT Compatible with PSP 1000) : Video Games