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3.7V 45mAh Polymer Li LiPo Battery 581013 Li-po For Mp3 GPS Earphone Headset pen | eBay
3.7v 600mah Lithium Polymer Rechargeable Battery 3 Wires 503040 Li-po Li Ion For Mp3 Dvd Camera Gps Psp Bluetooth Electronics - Rechargeable Batteries - AliExpress
3.7V Li Po Battery LP523450 3.7V 980mAh 3.62Wh
Lithium Ion Polymer Battery - 3.7V 70mAh | TinyCircuits.com