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Green rectangular circuit board with pogo pin connectors and USB port

WaveShare

WaveShare UPS HAT (B) for Raspberry Pi 3/3B+/4B, Pogo Pins, 5V 5A

SKU CH-0R8V-AT5NP

Provides uninterruptible 5 V power to Raspberry Pi 3/3B+/4B via pogo pins with I²C monitoring and multi-circuit battery protection

  • CPU TypeOther
  • Uninterrupted power during outages with automatic battery switchover
  • Real-time I2C monitoring of voltage, current, power and capacity
  • Pogo-pin connection leaves all GPIO pins free for other uses
  • Multi-circuit protection guards against over-charge, over-discharge, over-current, shorts and reverse polarity
  • Onboard 5 V regulator delivers up to 5 A continuous for Pi and USB peripherals

Raspberry Pi UPS HAT (B)

The WaveShare UPS HAT (B) is an uninterruptible power supply board built for Raspberry Pi 3, 3B+ and 4B models. It attaches through pogo pins so the Pi receives power without consuming any GPIO pins. The unit charges its batteries while simultaneously delivering 5 V at up to 5 A, and it switches to battery power automatically when the external supply disappears.

Makers needing zero-downtime Pi projects

This HAT suits hobbyists and engineers who run headless Pi servers, data loggers or portable devices that must survive brief mains outages. The onboard I2C bus lets software read voltage, current, power and remaining capacity in real time, enabling a clean shutdown before the cells are depleted. Builders who need a UPS for non-Pi boards, higher voltages or a different form factor should look elsewhere.

Pogo-pin power delivery

The defining specification is the pogo-pin connector that feeds the Raspberry Pi directly from the HAT’s 5 V regulator, leaving every GPIO header free for other HATs or sensors. This mechanical and electrical interface decides whether the board fits the intended Pi model and enclosure.

Highlights

  • Uninterrupted power during outages with automatic battery switchover
  • Real-time I2C monitoring of voltage, current, power and capacity
  • Pogo-pin connection leaves all GPIO pins free for other uses
  • Multi-circuit protection guards against over-charge, over-discharge, over-current, shorts and reverse polarity
  • Onboard 5 V regulator delivers up to 5 A continuous for Pi and USB peripherals

Specifications

CPU TypeOther

Questions about this item

Does the UPS HAT (B) include batteries or must they be purchased separately?

The HAT is supplied without batteries; you need to provide compatible Li-ion cells yourself.

Which Raspberry Pi models does this UPS HAT (B) support?

It is compatible with Raspberry Pi 3, 3B+ and 4B via the onboard pogo-pin connector.

What does the 5 A rating mean when the HAT is running a Pi 4 under load?

The onboard regulator can deliver up to 5 A continuously at 5 V, enough for a Pi 4 plus attached USB peripherals.

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