Replacement batteries for Apple's iPod Classic, iPhone, Touch, Mini, Nano, 1st Gen, 2nd Gen, 3rd Gen, 4th Gen, and Video | iToolBatteryKit
How do I replace the battery in the iPod touch models?: EveryiPod.com
How to Replace an iPod Battery | HowStuffWorks
iPod Classic - Wikipedia
How to revive your old iPod Classic with an SSD
Just got an iPod classic 5th gen 30gb. When I plugged it in, this came up. So, I decided to change the battery to a different one, and I still get this