NEW MP3 Replacement Battery for Apple iPod Nano 5 Gen 5G 5th Gen - Walmart.com
Replaced the dead battery in an old iPod Nano I bought (really wanted a cheap Product Red one) and not even 2 days later the replacement battery expanded. I would call this
Replacement battery for ipod Nano 1st gen a1137 MA350 616-0223 MA004 MA352 MA107 723905660796 | eBay
3.7v Replacement Battery for iPod Nano 3 3rd Gen 4gb 8gb A1236 Tools US for sale online | eBay