Lithium Ion Polymer Battery - 3.7v 500mAh : ID 1578 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits
18650 3.7v lithium ion li-ion battery 18650 3000mah, 18mm x 66mm | elliott electronic supply
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3.7 volt battery charger with low & full level indicator - YouTube
Lithium Ion Polymer Battery - 3.7v 100mAh : ID 1570 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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