> For the complete documentation index, see [llms.txt](https://developer.magtek.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.magtek.com/hardware/card-readers/mms-dyna-devices/dynaflex-ii-go/documents/developers-manuals/programmers-manual-commands/notifications/notifications-from-device/low-battery-warning.md).

# Low Battery Warning

## Notification 0x1001 – Low Battery Warning

The device sends this notification when the battery charge reaches 15 percent. If a device is powered on with a charge that is already 15 percent or below, this notification is sent shortly after power up and includes the current battery charge percentage. Percent indicates the percent of battery charge remaining.

It is recommended that the device is charged using a USB power source soon after receiving this notification. See **Table 14 - Notification Message Format** and **Table 337 Low Battery Notification Example**.

{% hint style="warning" %}
Charge the device using a USB power source soon after receiving this notification.
{% endhint %}

## **Table - Low Battery Notification Example**

{% code title="Example (hex)" %}

```
AA 00 81 04 83 00 10 01 82 00 02 00 0D
```

{% endcode %}


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