> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/hardware-products/hardware/android-devices/v640-series/v640m/640m-multi-bookshelf-charger-quick-installation-guide.md).

# 640m Multi Bookshelf Charger Quick Installation Guide

This guide walks through unboxing, assembling, and charging devices in the 640m Multi Bookshelf Charger.

Before you begin, confirm you have all devices, cables, and accessories listed below.

## What's in the Box

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-cover data-type="image">Cover image</th></tr></thead><tbody><tr><td><h3>640m Multi Bookshelf Charger</h3></td><td></td><td data-object-fit="contain"><a href="/files/e81e342cdb6fa8dc939efa318eef37f3dcbd462f">/files/e81e342cdb6fa8dc939efa318eef37f3dcbd462f</a></td></tr><tr><td><h3>Power Cable</h3></td><td></td><td data-object-fit="contain"><a href="/files/bf9e5ff05e10f3be8050b508dd5d5c7a1789fbac">/files/bf9e5ff05e10f3be8050b508dd5d5c7a1789fbac</a></td></tr></tbody></table>

## Quick Setup Guide

{% stepper %}
{% step %}

### Unbox the Charger

Remove the charger, base, and power cable from the box.

<figure><img src="/files/1c17ac02bfa38a3ecf5e9a498c8141bb037f2cfa" alt="" width="188"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Route the Power Cable

{% stepper %}
{% step %}

#### Secure the cable in the channel

Route the power cable through the base and secure it with the retention clips.

<figure><img src="/files/80f8eb617bb1e71233aaa936be1dfe5ec04637d8" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

#### Cable secured

The cable is routed and secured in the base.

<figure><img src="/files/0433b59e059b3ec5a63483f900c2ff2e0e9a8a74" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}
{% endstep %}

{% step %}

### Attach the Base

Lower the charger onto the base, aligning the power cable connector with the socket inside.

<figure><img src="/files/336304c1ac46cd380841ef1aa8511832cef2948f" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Secure the Charger to the Base

Lower the charger onto the base, then rotate it into place to lock it on.

<figure><img src="/files/ebd87b202af60878dc1b771ccb6ffc40580b25a3" alt="" width="375"><figcaption></figcaption></figure>

{% stepper %}
{% step %}

#### Insert the screw

Insert and tighten the screw to secure the charger to the base.

<figure><img src="/files/6e5732daf60c042840eb4443f7f85c17766eb945" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

#### Confirm the latch

Confirm tabs (A) and (B) are seated correctly.

<figure><img src="/files/79a3ee5012d6f2e1d75a351960ce9429778230b4" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}
{% endstep %}

{% step %}

### Attach the Connector

{% stepper %}
{% step %}

#### Attach the connector

Insert the connector into the port on the side of the device.

<figure><img src="/files/7134737c48391e102f18edbdba256895a280f766" alt="" width="188"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

#### Connector attached

The connector is now attached to the device.

<figure><img src="/files/4630015fa857b04f79043ae7bd34632b1462f6c1" alt="" width="188"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}
{% endstep %}

{% step %}

### Insert the Device into the Charger

Align the connector with the port inside the charger slot, then insert the device into the cradle.

<figure><img src="/files/2a6f4fb771b7ec885e7cc28df59eda2fe3ccf9e0" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Charge the Devices

Once seated, the devices are ready to charge in the charger.

<figure><img src="/files/84910903d8d44b1dd9e8654ec2941f11c95d9099" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

## Full Installation Guide

For full device setup details, product information, and troubleshooting steps, refer to the product documentation on the Verifone website.


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