The inbuilt charging circuit means it can recharge the attached battery by supplying power to the Pico via USB, and it includes protection against over-discharge and overcurrent. Theres a power button to stop the SHIM from providing battery power when its not needed and turn any project on and off, as well as two LED indicators a white one that shows when the shim is providing power and a red one to tell that when the battery is being charged.

Features:

Protection of Charger Reverse Connection
Protection of Battery Cell Reverse Connection
Only One External Capacitor Required
Over-temperature Protection
Overcharge Current Protection
Two-step Overcurrent Detection

Package includes:

1 x PIMORONI LiPo/LiIon Power Supply SHIM for Raspberry Pi Pico

Charge Current Range (A)	0.215
Connector Type	2 pole JST PH
Length (mm):	21
Width (mm):	21
Height (mm):	7
Weight (g):	3
Shipping Weight	0.006 kg
Shipping Dimensions	8 4 1 cm