Amazon.com: EEMB 3.7V Lipo Battery 500mAh 403048 Lithium Polymer ion Battery Rechargeable Lithium ion Polymer Battery with JST Connector Make Sure Device Polarity Matches with Battery Before Purchase!!! : Health & Household
China Lithium Cells Factory Customized KC Certification Lipo Battery for Tachograph BZ 802035 500mAh 3.7V Lithium Battery
3.7V Rechargeable Li Polymer Battery LP791255 500mAh With PCM&NTC&Wires