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Green rectangular circuit board with USB-C port, four cylindrical battery slots, and GPIO header pins

LORDWORLD

LORDWORLD UPS HAT (E) for Raspberry Pi 5 40W 4×21700 development board

SKU CH-NDMD-43XSA

Adds 4× 21700 battery backup with 40 W PD 3.0 fast charging and stable 5 V 6 A output for Raspberry Pi 5

  • Bi-directional fast charging via USB-C with PD 3.0 support up to 40W
  • Real-time battery monitoring through onboard fuel gauge IC and I2C communication
  • Extended runtime using four 21700 lithium batteries (not included)
  • Stable 5V 6A output from high-power buck converter for reliable Pi operation
  • Automatic boot and system-level battery display via onboard MCU management

UPS HAT for Raspberry Pi 5 with 40W PD 3.0 charging

This development board adds uninterruptible power to a Raspberry Pi 5, 4B or 3B+. It accepts up to four 21700 lithium cells and delivers a stable 5V 6A output through an onboard buck converter. A USB-C port handles bi-directional fast charging under the PD 3.0 protocol at up to 40W. An MCU detects external power and can boot the Pi automatically.

Pogo-pin mounting and I2C monitoring simplify setup

The HAT connects to the Pi through pogo pins, so no soldering or header assembly is required. Battery fuel-gauge data such as voltage, current, power and remaining capacity travel over the I2C bus for real-time software monitoring. Online resources and a manual guide the initial configuration. Builders must source their own 21700 cells, as none are included in the package.

Four 21700 cells give extended runtime for edge

With four cells installed the board can sustain the Pi through lengthy power interruptions, making it suitable for remote sensors, kiosks or mobile robotics. The 5V 6A limit defines the maximum load; peripherals drawing more current will exceed the regulator’s capability. Runtime scales with the capacity of the chosen cells, which are not supplied.

Highlights

  • Bi-directional fast charging via USB-C with PD 3.0 support up to 40W
  • Real-time battery monitoring through onboard fuel gauge IC and I2C communication
  • Extended runtime using four 21700 lithium batteries (not included)
  • Stable 5V 6A output from high-power buck converter for reliable Pi operation
  • Automatic boot and system-level battery display via onboard MCU management

Specifications

BrandLORDWORLD

Questions about this item

How can I verify the HAT is charging and reporting battery status correctly after installation?

The onboard fuel-gauge IC reports voltage, current, power and remaining capacity over the I2C bus, and the system can display the battery level directly.

Which items are included and what must I purchase separately to use the UPS HAT?

The board ships with online development resources and a manual; four 21700 lithium cells are required but not included.

How do I decide whether the 40 W PD 3.0 input suits my power source?

The Type-C port accepts up to 40 W via PD 3.0, so any charger or power bank supporting that profile will fast-charge the installed cells.

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