The charger cable inserted into the back of the JBL Xtreme 3 Bluetooth speaker.

How to Tell if JBL Xtreme 3 is Charging

How to tell if JBL Xtreme 3 is charging?  Well, this portable speaker has a strip row of LEDs on the lower front, as shown in the pictures that follow.  Furthermore, this strip show the current battery charge level.  Thus, to tell if this speaker is charging, look at these to see Xtreme 3 charging in action and how to know that the speaker is indeed taking on energy.

Moreover, you can feel the back of the speaker where the cord plugs in to see if you can detect some slight warmth.  Plus, that same warmth you should also notice on the charger itself.  If you feel a little heat on both the speaker and the charger, then the battery is likely charging.  But if there’s no heat on the power adapter and the speaker, then regardless of what the light strip might say, the speaker is likely not charging.

Front view of the JBL Xtreme 3 Bluetooth speaker.
Front view of the JBL Xtreme 3 Bluetooth speaker.

How to Tell if JBL Xtreme 3 is Charging

Speaker is NOT Charging if Not Plugged In !

Of course, you can be sure that this speaker is NOT charging with no cord  connected to it.

How the Meter Tells Us that the JBL Xtreme 3 is Charging

As detailed above, the light strip indicates battery charge level.  So, as recharging moves forward, you can tell if the speaker is charging if you see at least the lowest part of the meter bar flashing white.  E.g. When the battery inside is “undeniably dead,” the light at the far bottom of the strip blinks white while charging.  Then as the battery fills, that light changes to a steady white glow.  At that time, the next lamp up the strip starts blinking white.

As speaker charging moves on, more and more of the light bar glows solid white, as the flashing moves further up the bar.  It keeps moving upward until it reaches the top.  Therefore, this progressive light-up of the bar is another sign that the Xtreme 3 is indeed charging.

This picture next shows the speaker just before wrapping up a charging cycle. Note that almost all the lamps in the battery status meter glow.  But the last one goes on blinking for several minutes.  When one LED flashes while a working charger is connected, this is another way that the speaker tells us that it is charging.

Front view of the JBL Xtreme 3 speaker, showing the battery meter almost fully lit.
JBL Xtreme 3 speaker, front view, showing the battery meter almost fully lit.

How the Light Gauge Tells Us that the JBL Xtreme 3 is NOT Charging

Note that this BT speaker is NOT charging, when you see a blinking red light at the bottom of the meter. This means that the battery NEEDS charging. Thus, a flashing red light lets us know that the speaker is not currently getting any (or insufficient) charging current from the external power supply.  E.g. See this situation in the next picture.

Showing the red light ON in the battery meter.
The red light ON in the battery meter.

Also, the battery charge cycle is done when all battery gauge LEDs go dark, as shown next. Thus, the battery is no longer recharging when all lamps go OFF. Even with the charger cord still plugged in, no lamp glows when battery is full.  Thus, the Xtreme 2 is NOT charging when the battery is full.

Front view of the speaker, showing the battery meter gauge all dark.
The speaker front view, showing the battery meter gauge all dark.

Other ways to Tell if the JBL Xtreme 3 is Charging

1. The Speaker and Charger May Heat Slightly

Also, the Xtreme 3 warms a bit during charging as does its charger adapter.  This warmth, felt on the back near the DC input port, is a quick way how to tell if the JBL Xtreme 3 is charging.

2. The Charger May Hum or Whine 

Especially during the first hour of the recharge cycle, when the speaker requests the most charging current, the supply adapter, in addition to heating up a bit, will sometimes make humming, whining, or scratchy squealing noises. Note that these usually stop when you disconnect the charger from the speaker. Again, this means that the adapter is delivering more current (likely charging current) when connected to the speaker.

3. The Speaker Plays a Little Louder While Charging

As with many JBL speakers, you get a bit more audio output power from the JBL Xtreme 3 when it’s running on AC power.  Since this BT speaker always charges, if the battery inside needs charging, when you apply external power, a louder speaker likely means that charging is occurring.





Other Posts About the JBL Xtreme 3 

  1. How to Make JBL Xtreme 3 Discoverable
  2. How to Check JBL Xtreme 3 Battery Life
  3. JBL Xtreme 3 Specs and Features
  4. Finding the Current Firmware Version Installed on the JBL Xtreme 3
  5. JBL Xtreme 3 Pairing Instructions

Related Posts to How to Tell if JBL Xtreme 3 is Charging

  1. How to Tell if JBL Xtreme 2 is Charging
  2. Telling if JBL Charge 5 is Charging
  3. How to Tell if JBL Charge 4 is Charging
  4. Telling if JBL Boombox is Charging
  5. How to Tell if Wonderboom 2 is Charging

 

References for How to Tell if JBL Xtreme 3 is Charging

  1. JBL Xtreme 3 Product Page at JBL.com

Change History

  • 2021-08-10: First released.
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