AJMRTC UPS HAT (D) for Raspberry Pi 4B 3B+ 3B, 5V Uninterruptible Power Supply, Pogo Pins Connection, Supports 21700 Li Battery, Simultaneous Charging & Power Output, I2C Real-Time Monitoring

AJMRTC UPS HAT (D) is an uninterruptible power supply expansion board built for Raspberry Pi 4B, 3B+ and 3B. It delivers stable 5V output and automatically switches to battery power when external power fails to prevent unexpected shutdown and data loss. It adopts pogo pin design to supply power without occupying GPIO pins. It supports 21700 lithium batteries and allows charging and load output to run simultaneously. You can read battery voltage, current and remaining capacity via I2C. Built-in multi-protection circuits defend against overcharge, over-discharge, overcurrent and short circuit. It is great for remote monitoring, solar-powered IoT nodes and unattended Raspberry Pi projects.

Specifications

1. Compatible: Raspberry Pi 4B, 3B+, 3B
2. Output Voltage: 5V
3. Battery Type: 21700 Li Battery (NOT Included)
4. Connection: Pogo Pins
5. Core Feature: Charging and power output at the same time
6. Monitoring: I2C real-time battery status monitoring
7. Protection: Overcharge, over-discharge, overcurrent, short circuit protection
8. Application: IoT, remote monitoring, solar power, embedded data logger
9. Note: Raspberry Pi board and 21700 battery are not included