Lithium Ion Polymer Battery - 3.7V 2500mAh | TinyCircuits
Amazon.com: ICR17500 Battery 3.7V 1100mah A Size Lithium Rechargeable Batteries with Flat Top 2pcs(They are not 1865mm Size Battery) : Health & Household
Li-ion battery 4000mAh 3.7V
Li-Polymer Battery 3.7V 1500mAh
Amazon.com: 3.7V 1800mAh 804050 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector(Actual is 2000mAh.) : Health & Household