ThePico-UPS- a dedicatedUPS (Uninterruptible Power Supply)module designed for Pico. It incorporates -po battery switching charger with power path management, and /current monitoring chip, allows monitoring the battery operating status via I2C bus. What's more, the male pin header possible to "stack" other modules on top. Standard Pico header, supports Pico series boards Incorporates -po battery switching charger with path management, more stable power supply I2C bus communication, monitoring the battery , current, power, and remaining capacity in real time Multi battery protection circuits: over charge/discharge protection, over current protection, short circuit protection, and reverse protection,more safe and stable Onboard recharging indicator, power indicator, easy to check the battery status English manual (for Pico C/C++ and MicroPython examples) English Manual:..//Pico-UPS-B RECHARGE : 5V CONTROL BUS: I2C BATTERY SUPPORT: 600mAh 3.7V -po battery DIMENSIONS: 60 x 21mm Model Number: for pico w soldered Pins 2022 wifi case extension board Demo Board Type: ARM color:As shown Material:PC+metal Package Contents: 1 x 5V I2C UPS Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.