> For the complete documentation index, see [llms.txt](https://docs.auterion.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.auterion.com/hardware-integration/skynode/peripherals/power-module.md).

# Power Module

{% hint style="danger" %}
The Auterion Power Module is discontinued and replaced by the [Holybro PM02D](https://holybro.com/products/pm02d-power-module?srsltid=AfmBOor29EPWbqUslLyoGb0mjQmf8ZZTvlfe-Fxvx2f_qavcftVcpVXL).
{% endhint %}

The Skynode Evaluation Kit includes a power module which is used to power Skynode from a battery with up to 6 Cells (9V to 30V). The power module includes a 5.3V regulator with a maximum current rating of 5A. Furthermore the power module is used to measure battery voltage and current to the flight controller. Lastly the power module also provides a secondary battery voltage output for the Microhard module. This output is directly connected to the battery input and therefore provides the same voltage level as the input.

## Overview

<img src="/files/9u1mwT2i1hSDj9wCLLzu" alt="" data-size="original">

![](/files/nvXyIGDhoDtjSFhpiHzJ)

{% file src="/files/fgOnuyDlRBkgJI287nBu" %}
Power Module 3D model mockup
{% endfile %}

## Connectors

<table data-header-hidden><thead><tr><th width="150">ID</th><th width="150">Name</th><th>Connector</th><th>Description</th></tr></thead><tbody><tr><td>ID</td><td>Name</td><td>Connector</td><td>Description</td></tr><tr><td>J1</td><td>VBAT_IN</td><td>XT60</td><td>Battery voltage input</td></tr><tr><td>J2</td><td>VBAT_OUT</td><td>XT60</td><td>Battery voltage output</td></tr><tr><td>J3</td><td>VOUT_5V</td><td>Molex Micro-Lock Plus<br>5055670681</td><td>5V regulated power supply for Skynode</td></tr><tr><td>J5</td><td>VBAT_PERIPH</td><td>Molex Micro-Fit 3.0<br>0436500210</td><td>Battery voltage for other peripherals</td></tr></tbody></table>

## Pinouts

#### VBAT\_IN (J1)

{% hint style="danger" %}
**Maximum voltage: 36V**\
**Maximum current: 45A (continuous)**

Exceeding these limits can permanently damage the power module.
{% endhint %}

<table data-header-hidden><thead><tr><th width="150">Pin</th><th width="150">Name</th><th width="150">Dir</th><th width="150">Lvl</th><th>Function</th></tr></thead><tbody><tr><td>Pin</td><td>Name</td><td>Dir</td><td>Lvl</td><td>Function</td></tr><tr><td>1</td><td>VBAT_IN</td><td>IN</td><td>VBAT</td><td>Connected to battery or power supply</td></tr><tr><td>2</td><td>GND</td><td></td><td></td><td>Ground</td></tr></tbody></table>

#### VBAT\_OUT (J2)

{% hint style="info" %}
Output is **not** fused or current limited.
{% endhint %}

<table data-header-hidden><thead><tr><th width="150">Pin</th><th width="150">Name</th><th width="150">Dir</th><th width="150">Lvl</th><th>Function</th></tr></thead><tbody><tr><td>Pin</td><td>Name</td><td>Dir</td><td>Lvl</td><td>Function</td></tr><tr><td>1</td><td>VBAT_OUT</td><td>OUT</td><td>VBAT</td><td>Connects to ESCs and other high-current components</td></tr><tr><td>2</td><td>GND</td><td></td><td></td><td>Ground</td></tr></tbody></table>

#### VOUT\_5V (J3) - Skynode Power

{% hint style="info" %}
Maximum output current 5A.
{% endhint %}

<table data-header-hidden><thead><tr><th width="150">Pin</th><th width="150">Name</th><th width="150">Dir</th><th width="150">Lvl</th><th>Function</th></tr></thead><tbody><tr><td>Pin</td><td>Name</td><td>Dir</td><td>Lvl</td><td>Function</td></tr><tr><td>1</td><td>VDD_5V</td><td>OUT</td><td>5.3V</td><td>5.3V output</td></tr><tr><td>2</td><td>VDD_5V</td><td>OUT</td><td>5.3V</td><td>5.3V output</td></tr><tr><td>3</td><td>I2C_SCL</td><td>I/O</td><td>3.3V</td><td>Voltage/Current reporting via I2C</td></tr><tr><td>4</td><td>I2C_SDA</td><td>I/O</td><td>3.3V</td><td></td></tr><tr><td>5</td><td>GND</td><td></td><td></td><td>Ground</td></tr><tr><td>6</td><td>GND</td><td></td><td></td><td>Ground</td></tr></tbody></table>

#### VBAT\_PERIPH (J5)

{% hint style="info" %}
Power supply connector for the [Microhard Communication Module](/hardware-integration/skynode/peripherals/data-link-module.md).
{% endhint %}

<table data-header-hidden><thead><tr><th width="150">Pin</th><th width="150">Name</th><th width="150">Dir</th><th width="150">Lvl</th><th>Function</th></tr></thead><tbody><tr><td>Pin</td><td>Name</td><td>Dir</td><td>Lvl</td><td>Function</td></tr><tr><td>1</td><td>GND</td><td></td><td></td><td>Ground</td></tr><tr><td>2</td><td>VBAT_OUT</td><td>OUT</td><td>VBAT</td><td>8A fused</td></tr></tbody></table>