Lithium Ion Polymer Battery - 3.7V 500mAh | TinyCircuits.com
Lithium Ion Polymer Battery - 3.7V 1500mAh
Amazon.com: DC 3.7V 3000mAh 103665 Rechargeable Lithium Polymer Replacement Battery for DIY 3.7-5V Electronic Product, Mobile Energy Storage Power Supply : Electronics
Li-Polymer Battery 3.7V 3000mAh
Watson Lithium-Ion Battery Pack (3.7V, 1800mAh) for HD B-1801