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UPS module for Raspberry Pi that keeps power running during outages using two replaceable 18650 batteries (not included). Integrated coulometer lets you read battery voltage and current over I2C from the system, programmable for low-battery alerts and controlled software shutdown. Independent real-time clock (RTC) to keep time without internet. Charge-status LEDs on the board itself. Supports simultaneous charge and discharge with integrated power-path management (you can use the Pi while it charges). Extra outputs: two USB-A and one USB-C to power peripherals. Power button with tap to boot and long press to shut down. Protection against overcurrent, overvoltage, short circuit, over-discharge, overcharge and overtemperature. Charging up to 2.1A, nominal discharge 15W. Requires a 5V 3A supply minimum (5V 4.5A recommended if you connect demanding peripherals). Compatible with Raspberry Pi 4B, 3B+ and 3B. Includes M2.5 hardware, standoffs and an acrylic protector.
Main features:
- UPS with rechargeable battery
- Real-time clock (RTC)
- Precision coulometer for charge level
- Safe software shutdown
- Compatible with Raspberry Pi 4B/3B+/3B
- Ideal for headless servers and 24/7 deployments
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