TinyCircuits
LITHIUM ION POLYMER BATTERY 3.7V. Battery Packs Lithium Ion Polymer Battery - 3.7V 70mAh
SparkFun Electronics
BATTERY LITHIUM 3.7V 6AH. SparkFun Accessories Lithium Ion Battery - 6Ah
SparkFun Electronics
BATTERY LITHIUM 3.7V 110MAH. SparkFun Accessories E-Textiles Battery - 110mAh (2C Discharge)
SparkFun Electronics
LI-ION BATTERY 2.2AH. SparkFun Accessories Lithium Ion Battery - 2200mAh 7.4v
SparkFun Electronics
LI-ION BATTERY 1AH. SparkFun Accessories Lithium Ion Battery - 1000mAh 7.4v