Lithium Ion Polymer Battery - 3.7v 100mAh : ID 1570 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Lithium Ion Battery - 1Ah - PRT-13813 - SparkFun Electronics
10PCS 17280 600mAh 3.7v Li-ion Battery cell customized for digital applications | eBay
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