This is a rechargeable Lithium-ion polymer battery that can power your projects. The battery has a capacity of 40mAh at 3.7V, the voltage can range from 4.2V when fully charged to 3.0V when completely discharged. The battery includes protection circuitry to protect the battery from overcharging or completely discharging.
This lipo battery includes a micro JST SH connector, which is compatible with TinyCircuits products.