> For the complete documentation index, see [llms.txt](https://docs.inspiredflight.com/inspired-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.inspiredflight.com/inspired-documentation/products/aircraft/if800-tomcat/if800-batteries/best-practices/ib388-battery-charging.md).

# IB388 Battery Charging

{% hint style="danger" %}
Do NOT unplug the IB388 Batteries from their charger unless the IMARS D300 charger states “IDLE”. Doing so may damage the batteries.

{% endhint %}

{% hint style="warning" %}
Charging multiple IB388 Batteries on one D300 charger can lead to charging errors in addition to slower charging times. It is recommended to charge one battery per charger.
{% endhint %}

{% embed url="<https://www.youtube.com/watch?ab_channel=InspiredFlightTechnologies&v=RfhAqwJRgns>" %}

<table><thead><tr><th width="94">STEP</th><th>ACTION</th></tr></thead><tbody><tr><td>1</td><td>Ensure the IMARS D300 Charger is plugged into a 120VAC outlet and is in the idle state.</td></tr></tbody></table>

<figure><img src="/files/vXODhuVmqDg43w9MPbSC" alt="" width="338"><figcaption></figcaption></figure>

<table><thead><tr><th width="89"></th><th></th></tr></thead><tbody><tr><td>2</td><td><p>Press the Battery Indicator Button on the IB388 Battery to wake up the battery. It will start flashing green. </p><p><mark style="color:orange;"><strong>NOTE:</strong></mark> Sometimes the center button can be difficult to press and more force is required.  </p></td></tr><tr><td><mark style="color:orange;"><strong>Note</strong></mark></td><td>Status LED should flash green.</td></tr></tbody></table>

<figure><img src="/files/PooazxS6keYmJe9TKzr3" alt="" width="188"><figcaption></figcaption></figure>

<table><thead><tr><th width="89"></th><th></th></tr></thead><tbody><tr><td>3</td><td><p>Plug in the yellow XT60 into the CHA port on the D300. </p><p></p></td></tr><tr><td>4</td><td>Next connect the IB388 to the battery connector of the charge cable.</td></tr></tbody></table>

<figure><img src="/files/iMDoWw3Hp3Ctlixb7Cbf" alt="" width="188"><figcaption></figcaption></figure>

{% hint style="info" %}
A Pop-up window will appear asking you to Confirm the battery is IB388.
{% endhint %}

<table><thead><tr><th width="81"></th><th></th></tr></thead><tbody><tr><td>5</td><td>Press the <strong>Up</strong> arrow then <strong>Enter/Setting</strong> button to select ‘Yes’. Charing will begin. </td></tr></tbody></table>

<figure><img src="/files/IggNCfXWGzRS9pnUpXFq" alt="" width="300"><figcaption></figcaption></figure>

<table><thead><tr><th width="73"></th><th></th></tr></thead><tbody><tr><td>6</td><td><p>Verify the IMARS D300 is charging. </p><p>The charger will display:</p><ul><li>Time it has been charging</li><li>Current</li><li>Voltage</li><li>mAh charged</li></ul><p><mark style="color:orange;"><strong>NOTE:</strong> "</mark>Charging #%" on the chargers can be inaccurate. Best practice is to wait until the charger has gone to an idle state and then check the State of Charge using <a href="/pages/GOg79G4znXFM5W9H7FUd">NFC</a> and /or LED indicators. </p></td></tr></tbody></table>

<figure><img src="/files/YDQlSwAXeHg28yai7hYP" alt="" width="303"><figcaption></figcaption></figure>

<table><thead><tr><th width="70"></th><th></th></tr></thead><tbody><tr><td>7</td><td>Verify the IB388 Battery Light is <strong>Solid Blue</strong> to indicate Charging.</td></tr><tr><td></td><td><mark style="color:orange;"><strong>NOTE:</strong></mark> Light may flash blue at any time throughout the charge for cell balancing. This is normal.</td></tr></tbody></table>

<figure><img src="/files/GeZx2zHC55OqD1vsAHdP" alt="" width="188"><figcaption></figcaption></figure>

<table><thead><tr><th width="74"></th><th></th></tr></thead><tbody><tr><td>8</td><td>The charge is completed once the charger has gone into an idle state. </td></tr><tr><td></td><td><mark style="color:red;">WARNING:</mark> Disconnecting the charger plug while the battery is charging may damage the battery.</td></tr></tbody></table>

<table><thead><tr><th width="74"></th><th></th></tr></thead><tbody><tr><td>9</td><td>If you need to cancel charging stop the charger first by selecting the Enter/Setting button until it shows the battery has entered 'idle's state before unplugging the battery. </td></tr></tbody></table>

<figure><img src="/files/Ejc102FwYAWIbJTEI5iD" alt=""><figcaption></figcaption></figure>