Lithium Ion Polymer Battery - 3.7V 290mAh | TinyCircuits.com
3.7V Rechargeable Li Polymer Battery LP251328 65mAh With PCM and Wires
Amazon.com: DC 3.7V 3000mAh 103665 Rechargeable Lithium Polymer Replacement Battery for DIY 3.7-5V Electronic Product, Mobile Energy Storage Power Supply : Electronics
2x 3.7V 26650 LiMN Rechargeable Flat Top Battery w/ 2 slot BONUS CASE
3.7v 180mah Lithium Polymer Lipo Rechargeable Battery 501235 For Mp3 Gps Headphone Mobile Electronic Part - Rechargeable Batteries - AliExpress
Lithium Ion Polymer Battery - 3.7V 350mAh : ID 2750 : $6.95 : Adafruit Industries, Unique & fun DIY electronics and kits