Front view of the JBL Boombox BT speaker.

How to Check JBL Boombox Battery Life

Covers how to check battery life on the JBL Boombox mini Bluetooth speaker, and also, how to know if the battery life is decreasing as time passes.





How to Check Battery on JBL Boombox, Current Charge

1. First, Turn ON the Speaker

You won’t be able to read battery charge status unless the speaker is ON.

Top View of the JBL Boombox BT speaker, showing the -Power- button glowing.
Top View of the JBL Boombox BT speaker, showing the -Power- button glowing.

To switch on the speaker, press and release the Power button, pointed at by the green arrow in the last picture.

Then, the lamp inside the Power button should come on, as shown next, and the speaker should make its startup sound.  If it does not, then the battery could be completely dead.  In this case, fully charge the speaker and try again.

The -Power- button glowing blue on the JBL Boombox Bluetooth speaker.
JBL Boombox speaker, showing the -Power- button glowing blue.

But as long as there’s some juice in the battery, the speaker should power up.  When it does, move on to the next step.

2. Look at the Battery Status Meter 

Note that this speaker has a battery gauge to let you know exactly how much charge is left.  By reading this, you can tell if the battery is on the verge of going dead. Now when the battery is full, all five of the LEDs in the gauge glow a steady white.  As the battery charge depletes, the lamps start to go out one by one, starting first at the far right, and progressing left.  Then when the speaker gets critically low, the last LED on the meter starts flashing red.

See the gauge showing a full battery in the next picture.

Front view of the JBL Boombox BT speaker, showing the battery level gauge, which is reading full charge in this picture.
Front view of the JBL Boombox BT speaker, showing the battery level gauge, which is reading full charge in this picture.

 





How to Check Battery on JBL Boombox, Overall Battery Condition

When the speaker is new, and using the charger that comes with the unit, the JBL Boombox charge time is about 6.5 hours to reach a full charge.

And, the fully charged battery should last for around twenty-four hours of play time before dying.

A sign of a bad battery, is that it goes dead much faster than this, or takes too little or too much time to fully charge. So if you fully charge your speaker, but it only plays for under twenty hours before shutting off, its battery may be failing, and unable to hold a full charge anymore.

Furthermore, if the battery in the JBL Boombox takes longer than seven hours to completely recharge, this could also mean a weakening battery.  It might mean also, that the charger you’re using is not strong enough to recharge the speaker in the specified charge time.

Finally, slow charging can happen because your charger is faulty.  It’s worthwhile to check charger voltage output while charging.  This should be twenty volts.  If it is not, then replace the charger.

Other Posts About the JBL Boombox Bluetooth Speaker

  1. JBL Boombox Speaker Specs and Features
  2. How to Reset JBL Boombox Bluetooth Speaker
  3. How to Put JBL Boombox in Pairing Mode
  4. JBL Boombox Won’t Turn On Unless Plugged In
  5. JBL Boombox Charging Instructions, Recharging Time




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References for How to Check Battery Life on JBL Boombox BT Speaker

  1. JBL Boombox Mini Speaker Official Product Page at JBL.com

Change History

  • 2020-11-24: First published.

 

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