4th gen Mono battery life sucks, but it's a new battery. What kind of life do you guys get from yours? : r/ipod
Modding an iPod Classic - 1 TB and bigger battery
EC008 Battery for Apple iPod G5 30GB A1136, iPod Classic 120GB, iPod Classic 6th GEN A1238 80GB, 3.7V, 450mAh: Amazon.de: Electronics & Photo
How to Replace iPod Classic Battery - YouTube
vhbw Li-Polymer Akku 450mAh kompatibel mit Video MP3 Player Apple iPod Classic 6th GEN A1238 80GB Ersatz für 616-0227, 616-0229, EC008.: Amazon.de: Elektronik & Foto