LiPo Battery 1000mAh + Design Company's Good Partner
Amazon.com: PKCELL ICR18500 Battery 3.7V 1400mah Li-Ion Rechargeable with Button Top 6PC(They are not 1865mm Batteries Also Not AA Size Battery) : Health & Household
Amazon.com: EEMB Lithium Polymer Battery 3.7V 1500mAh 103050 Lipo Rechargeable Battery Pack with Wire JST Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase : Health & Household
Amazon.com: AKZYTUE 3.7V 720mAh 702348 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector : Health & Household