Geekworm UPS HAT Expansion Board + 2500mAh Lithium Battery For Raspberry Pi 3 Model B/ 2B/B+/A+

Features:- Standard dimension of Raspberry Pi HAT, and it's compatible with all of the expansion board.- Cascading design saves space while powering raspberry pi and expansion boards without affecting GPIO expansion.- Support up to 2A quick-charge technology, can rapidly charge full the battery.- Can be charged and supplied power to raspberry pi at the same time.- With 4 LED power indicator; -- Applicatoin scene 1: You can program to control automatic backup of data at low power and safe shutdown. -- Applicatoin scene 2: Remind users to charge at low battery levels. etc.)- Removable battery, user can choose a more larger capacity lithium battery pack (NOTE: voltage must be 3.7V).- With safety protection circuit to prevent overcharge and over discharge.- Retains the raspberry GPIO interface, you still can use all kinds of expansion board;- It is Mini UPS power supply; maximum 5V / 2A output, and maximum 5V / 2A input.Package included:1 x UPS HAT Board1 x Li-ion Battery(2500mAh)