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Lithium Ion Polymer Battery - 3.7V 850mAh | TinyCircuits.com
Li-Polymer Battery 3.7V 1500mAh
Amazon.com: EEMB 3.7V Lipo Battery 300mAh 602030 Lithium Polymer ion Battery Rechargeable Lithium ion Polymer Battery with JST Connector Make Sure Device Polarity Matches with Battery Before Purchase!!! : Health & Household