Front right view of the JBL Charge 5 Bluetooth speaker.

JBL Charge 5 Not Charging, How to Fix

Most JBL Bluetooth speakers, including the Charge 5, offer truly wireless operation via the lithium ion battery they have inside. And when that battery dies, you can recharge the speaker via an AC or car adapter. Sometimes though, you may notice that the JBL Charge 5 is not charging fully, or at all, even when you connect the adapter to power, and then to the speaker.

How to Tell that the JBL Charge 5 is Not Charging

Among the ways you can tell that the Charge 5 is not charging, is by reading the battery status gauge on the front of the speaker.  Now this meter starts pulsing red near its bottom during play, to alert you that the battery is running low on power.  And this flashing keeps going, even when you attach the charger.  But the gauge should change at this point though, to blinking white, when you apply charging power.  When the light changes to white, that means that the speaker is getting some power from the adapter. But if it keeps blinking red, then correct recharging is likely not happening.

You can also feel the adapter’s side panel ten or fifteen minutes into the charge cycle.  At that time, it should be slightly warm to the touch.  Note too that the speaker itself warms a bit as well during proper recharging.  But if you sense no warmth, then again, the JBL Charge 5 is probably not charging.

Furthermore, the battery gauge normally shows battery recharging status.  I.e. As the unit recharges, more and more of the meter bar lights up white.  If you don’t see this happening after two hours of recharging, then chances are, charging is not going well.

Thus when you notice that the speaker is not recharging, even though it should be, you’ll want to figure out what’s wrong and how to fix the situation.  So in this post, we offer reasons why the speaker may not charge when connected to power.  Then we give possible fixes for this typical problem.





 JBL Charge 5 Not Charging, Reasons and Fixes

As we stated earlier, it’s normal that the battery status gauge pulses red when the battery inside is about dead.  But this meter should switch to a flashing white light when you connect the speaker to the charger, and the charger to a power outlet, and battery recharging begins.

Picture of the flashing red light on the JBL Charge 5 speaker.
The flashing red light on the JBL Charge 5 speaker.

Normally though, this meter only displays only white light.  Furthermore, the amount of the meter bar glowing tells you how full the battery is. It can look as follows. The whole gauge bar is lit in the following picture.

The battery level meter gauge showing a full charge on the JBL Charge 5 Speaker.
The battery level meter gauge showing a full charge on the JBL Charge 5 Speaker.

Or, if the speaker is OFF when charging starts, and you don’t turn it ON during charging, then once recharging finishes, all lights in this gauge go dark. See this in the next picture.

Picture of the dark battery gauge on the JBL Charge 5 speaker.
The dark battery gauge on the JBL Charge 5 speaker.

If the gauge does not change to white when you plug the charger into the speaker, then several things might cause this. We list these below thus.

1.The Power Outlet May Not Be Energized

The Problem

The AC or car adapter for the JBL Charge 5 may not output any juice because it is not receiving any to begin with. This can happen due to a defective AC or car circuit, tripped breaker, blown fuse, faulty wiring, power failure, and the like.

The Fix

Check that your receptacle has power by plugging in a lamp or other device.  Then, reset circuit breakers if tripped, and if the outlet has a light switch that controls it, then be certain that that switch is in the ON position.  Or, simply try a different outlet.

2. The AC Adapter is Broken

The Problem

The JBL Charge 5 not charging can also happen because the AC or car adapter is providing SOME but not FULL amperage to completely recharge the speaker, even though its getting the correct power input from the outlet.

Now as the unit ages, its output energy can fall over time. So this power supply might not deliver the correct amount if it is very old.   Thus you may see the gauge turn to a blinking white light, but not gradually move toward full charge. Or, it may advance, but more slowly than usual. Please note that this speaker needs 3 amps at 5 volts from the adapter to fully recharge in the specified time of 4 hours.  Charging will likely not go as we hope if the charger does not deliver on these requirements.

Rear view of the JBL Charge 5 speaker, showing a charging cable inserted.

The Fix

The solution is to replace the adapter, preferably one that has a USB-C plug and delivers the maximum 5 volts at 3 amps (15 watts). We advise that you obtain a replacement directly from JBL for the safest yet fastest charging.





3. The Battery in the Charge 5 is Faulty

The Problem

As lithium ion batteries age, they lose their ability to fully recharge, and the characteristics of the charging current they draw, changes as they get older.  Normally, as a battery charges, it draws less and less charge current as it fills. But in the case of cell failure, it may draw too many or too few amps, thus confusing the charging circuits into behaving like no charging is occurring.  So the gauge shows that charging is not happening.

The Fix

To repair this, replace the battery. But realize that you can’t easily get the old one out of the JBL Charge 5. Indeed, changing the battery means that you must take the speaker apart, and this is intricate work.

Also note that doing this likely breaks the moisture seal.  So the speaker will no longer be safe to use, should you expose it to water.

Breaking this seal may alter the sound quality as well. So get someone to replace the battery who knows how to pick the right replacement. They should also be able to restore the seal to as it was, as they reassemble the speaker. A good battery should fit well inside the speaker and provide 3.6 volts and at least 7,500 mAh (27 watt-hours). But we suggest using only JBL certified batteries for this speaker.

4. The Speaker Might be Defective when the JBL Charge 5 Is Not Charging

The Problem

Even if you have the proper power supply, with a working battery in the speaker, the charging current that actually gets to the battery may be too low or too high.  This can occur when the battery management circuits inside the Charge 5 fail.  Note that these systems read the battery status, and switch off the charging current when they deem the battery full.

But when they go haywire, the battery might see no power at all though the charger itself is fine.  Thus, the speaker never charges.  Again, in this case, the battery gauge might never stop blinking, even with the charger attached. You may also see that the speaker doesn’t play as long before dying, if at all, until you connect the charger. Or it might not play at all.

The Fix

The best answer here, is simply to get a new JBL Charge 5.  Why?  Because the electronics in this unit are quite small.  So unless you can replace the system board(s) yourself, or know someone who will do it for you, just buy another speaker to save a bunch of aggravation.





Related Posts to JBL Charge 5 Not Charging

  1. How to Repair JBL Xtreme 2 Not Charging
  2. JBL Xtreme 3 Not Charging, How to Fix

Other Posts About the JBL Charge 5 Speaker

  1. How to Turn On Low Frequency on JBL Charge 5
  2. JBL Charge 5 Red Light Stays On, How to Fix
  3. JBL Charge 5 Pairing Instructions
  4. How to Turn On JBL Charge 5 Bluetooth Speaker
  5. How to Turn Off JBL Charge 5 Portable Speaker

References for JBL Charge 5 Not Charging

  1. JBL Charge 5 Official Product Page at JBL.com
  2. Where to Buy the JBL Charge 5

Revision History

  • 2022-07-30: First posted.
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