SanErqi for iPod Nano 7 7th Gen Battery 3.7V Li ion Battery Replacement 330mAh with Free Tools|3.7v li-ion battery|3.7v li-ionli-ion battery 3.7v - AliExpress
Amazon.com: MULS iPod Nano 7 Battery for Apple iPod Nano 7th Gen A1446 Model No. 616-0640 MD481LL/A ME971LL/A MD480LL/A MD479LL/A MD475LL/A MD476LL/A MD478LL/A MD477LL/A MKN52LL/A MKMX2LL/A MKN22LL/A : Electronics
Replacement for iPod Nano 7th Gen Battery Replacement