Buy Wholesale China Lithium-ion 18650mp 3.7v 2000mah 1s1p Battery Pack For Electronic Products Replacement & 18650 3.7v 2.2ah Rechargeable Battery High Drain at USD 1.88 | Global Sources
3.7v 2000mah 102560 Lithium Polymer Rechargeable Battery Accumulator Li Ion Lipo Cell For E-book Power Bank Diy Tablet Pc - Rechargeable Batteries - AliExpress
Lithium Ion Battery - 3.7V 2000mAh : ID 2011 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits