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IO Expansion Shields & HATs

LattePanda Sigma UPS Board

SKU: DFR1095

The LattePanda Sigma UPS is a UPS expansion board specifically designed for the LattePanda Sigma. It utilizes 4 x 18650 lithium-ion batteries as the power storage solution and supports external power supply via Type-C PD and a 5.5mm DC interface.

Board Overview of UPS Expansion HAT for LattePanda Sigma
  • Docs
  • Tech Specs

    • Specification

    Parameter Details
    Power supply interface - USB Type-C PD protocol:
    * Voltage requirement: 15V
    * Power requirement: 100W
    - DC Jack 5.5x2.1mm:
    * Voltage requirement: 19~24V
    * Power requirement: ≥90W
    Battery type 3.7V 18650 lithium-ion battery
    Charging current 2A
    Compatible LattePanda Models LattePanda Sigma
    Operating temperature 0~60℃

    Hardware Introduction

    Hardware Introduction

    FAQ

    • What happens if the power adapter provides insufficient power?
      Insufficient adapter power will cause slow charging, inability to charge, or even battery depletion despite being connected to a power source. Please pair the UPS with a power adapter of at least 90W. It is recommended to use the 90W power supply included in the LattePanda package.
    • Can power generation devices such as solar panels or wind turbines be directly connected to the UPS?

      In theory, as long as the input voltage is within the range of 12~24V, the UPS can work, but we do not recommend directly connecting solar panels in this way. An overly unstable power source can cause the battery to frequently switch between charging and discharging, which may severely affect battery life. If you want to connect a solar panel, a power management module with voltage stabilization and energy storage functions, such as SKU:DFR0580, should be connected before input to the UPS.

    • If both the 5.5x2.1mm DC and USB TypeC power supplies are connected to the UPS, which power source will the system prioritize?
      The system will prioritize the power source with the higher voltage. The USB Type-C PD will automatically negotiate to supply 20V, while the voltage through the 5.5x2.1mm DC port will depend on the specifications of the power adapter used.

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