How to Charge Ultimate Ears Wonderboom

Ultimate Ears Wonderboom BT speaker, powered ON, showing the top view, with the glowing -Power- button circled.

Covers how to charge Ultimate Ears Wonderboom through the hidden micro USB charge port on the back of the speaker.

In nut shell: First, select a hefty enough USB power adapter. Why? Because Logitech does not include this with the Wonderboom. But they do offer one for roughly $20 US.

Next, connect a micro USB charge cord between the Wonderboom and that adapter. Then, plug that power supply into a working AC mains outlet.

Finally after a few hours, the speaker fully recharges. Then, you can play it again for maybe ten hours before it runs dead again.

How to Charge Ultimate Ears Wonderboom Speaker

1. Choose Strong Enough USB Charger

Firstly in this demo, we’re using the iClever 24 watt AC USB charger, as shown next. The Wonderboom needs 5 volts at approximately 0.6 amps to charge fully in a reasonable amount of time. So this iClever USB wall adapter is indeed strong enough to recharge the WB with lots of power to spare.

iClever IC-TC02 Two Port USB Wall Charger, showing the label side view. How to Charge Ultimate Ears Wonderboom.

2. Open the Power Port Cover

Then use a dime or penny to open the waterproof seal port cover on the WB. This uncovers the micro USB charging port inside, as shown next.

Wonderboom UE speaker back view, with port door open and the micro USB charge port highlighted. How to Charge Ultimate Ears Wonderboom instructions.

3. Power Off the Wonderboom

Note that the Wonderboom still charges when running. But depending on your charger, it may recharge slightly faster when turned OFF.

4. Plug in the Micro USB Cord to Continue with How to Charge Ultimate Ears Wonderboom

Then, plug the small end of your micro USB charge cable into the matching micro USB port on the speaker.

Ultimate Ears Wonderboom Bluetooth speaker back view, with charging cord connected and highlighted. How to Charge Ultimate Ears Wonderboom speaker.

5. Plug the Other End of the USB Cord into the AC Adapter

Next, connect the A end of the USB charge cable to the power adapter. In this demo, we use an iClever 24 Watt 2.1 amp per port charger. We also have a generic micro USB cable for this.

6. Plug the AC USB Power Adapter into a Wall Outlet

Now that we connected the Wonderboom and charger, we plug the adapter into a working AC outlet. So here, we plugged ours into a wall receptacle in the kitchen.

Wonderboom Ultimate Ears speaker charging, showing its -Power- button glowing and highlighted. How to Charge Ultimate Ears Wonderboom directions.

The status light in the power button lights a fading and brightening white pattern. While no battery status gauge shows charge percentage, the pulsating white lamp means that charging is in progress.

Then when the speaker is OFF, this lamp goes out when charging finishes. But when the speaker is ON, this lamp starts glowing a solid white once more.

7. Let the Ultimate Ears Wonderboom Charge Until the the Power Lamp Stops Pulsating

Finally, battery charging is complete when the gradually brightening and fading power lamp stops pulsating. Detail: when the speaker is OFF, this lamp goes out when charging finishes. But if the speaker is ON, the light starts glowing a solid white once more.

8. Unplug the USB Cord

9. Close the USB Door

Note that unless you snap this door tightly into place, water might get inside. So this might affect speaker electronics in a bad way. So, be sure to press door closed with enough pressure to fully seat it, to ensure full water resistance.

UE Wonderboom speaker back bottom view, showing the power port door closed and highlighted.