> For the complete documentation index, see [llms.txt](https://enless.gitbook.io/centre-aide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enless.gitbook.io/centre-aide/guides-installation/documentation-en/products/editor-4/use/power-supply-and-battery.md).

# Power supply and battery

The TX LIGHT PIR T\&H offers two power supply modes:

* Mode **Battery** : Use the supplied battery for optimal autonomy. To activate the sensor, simply remove the insulating tab.
* Mode **USB-C** : For continuous power, connect a USB-C cable (**5V** / **0.5A**).

{% hint style="warning" %}
In **USB-C** mode, the **battery** must be **removed**. This mode makes it possible to completely eliminate maintenance operations related to battery replacement.
{% endhint %}

## First setup

{% columns %}
{% column %}

#### Battery

The TX LIGHT PIR T\&H is powered by removing the protective tab from the built-in battery.

<div data-with-frame="true"><figure><img src="/files/6396c713f939617028337d49ad5270a97740cdcd" alt=""><figcaption></figcaption></figure></div>
{% endcolumn %}

{% column %}

#### USB-C

Connect a USB-C cable. You can route the cable by breaking off the end of the rear tray tab.

<div data-with-frame="true"><figure><img src="/files/6e4aded7940ef276b7b32f43ebc8c826cc42e08a" alt=""><figcaption></figcaption></figure></div>

{% endcolumn %}
{% endcolumns %}

## Battery replacement

{% columns %}
{% column %}

<div data-with-frame="true"><figure><img src="/files/c2a0402ec9f109f7a467d4152a4cacd6cd7ccc73" alt=""><figcaption></figcaption></figure></div>
{% endcolumn %}

{% column %}
To replace the battery of the TX LIGHT PIR T\&H, you must first remove the sensor from its mount and gain access to the battery.

The TX LIGHT PIR T\&H uses a lithium C 3.6 V battery.
{% endcolumn %}
{% endcolumns %}

If your sensor was still operating when you remove the battery, it may continue to operate thanks to the energy reserve stored in its supercap. You can force the supercap to discharge by [consulting this tutorial](https://www.youtube.com/watch?v=gRLy9dJJaSQ).

{% embed url="<https://www.youtube.com/watch?v=gRLy9dJJaSQ>" %}


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