Used 500mah 3.7v 18650 Lithium Ion Cell Li-ion Battery For Robotics

18650 BATTERY CELL 3.7V 500mAH RECHARGEABLE LI-ION LION BATTERY
Model: TR 18650
Standard voltage: 3.7V
Rated Capacity:500mAh
Diameter: approx 18mm
Height: approx 65mm
Applications..
Arduino power supply, Robotics, Toys etc.
Description:
No, these aren’t some sort of weird, AA battery, this is actually a 18650 Lithium Ion Cell. These round high capacity cells have been mainly used in flashlight type applications but with its capability to be used as a drop-in rechargable cell at 3.7V with a capacity of 500mAh. This is a great battery option for those of you who need a simple to install and replace cell with a lot of juice.
These 18650 Cells have a standard discharge current of 0.2C to a maximum of 1C and can handle about 300 charge cycles.