Li-ion Battery 3.7V/2000mAh – Flat - Gamasonic USA
Lithium Ion Polymer Battery - 3.7v 100mAh : ID 1570 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
18650 Li-ion Rechargeable Battery For MT10, MH10, H8R, P7R | Ledlenser USA
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