Lithium Ion Polymer Battery - 3.7v 2500mAh : ID 328 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Lithium Ion Polymer Battery - 3.7v 150mAh : ID 1317 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Lithium Ion Battery - 2Ah - PRT-13855 - SparkFun Electronics
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Lithium Ion Battery - 110mAh - PRT-13853 - SparkFun Electronics