Lithium Ion Cylindrical Battery - 3.7v 2200mAh : ID 1781 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: PKCELL ICR17500 Battery 3.7V 1100mah A Size Lithium Rechargeable Batteries with Flat Top 2pcs(They are not 1865mm Size Battery) : Health & Household
3.7V 503337 750mah Lithium Polymer Rechargeable Battery For baby monitor vb603 , angeleye ae210 video monitor
Lithium Ion Polymer Battery with Short Cable - 3.7V 420mAh : ID 4236 : $6.95 : Adafruit Industries, Unique & fun DIY electronics and kits
3.7v 500mah Lithium Polymer Lipo Rechargeable Battery With Jst 1.0mm 3pin Connector 582535 For Mp3 Gps Bluetooth Camera Watch - Rechargeable Batteries - AliExpress
Common Sense RC Lectron Pro 3.7V 1000mAh 30C LiPo 1S1000-30J B&H