For lithium Ion chemistry. Contains battery clips for 1-18650 cell. Location to mount charging module.
Legacy RS232 level signals are still used in many devices. This module converts USB to a serial RS485 port. It has a bluetooth port for using HC05-06-10 modules. This RS485 output allows a small amount of power using easy-to-use RJ12 connector system. 115K baud and >1000 feet cable is possible.