How to tell if JBL Charge 4 is charging? Well, this portable speaker with power bank has a lone row of small LED lamps across the front its pedestal, as shown in the pictures following. These lights display battery charge level status. To tell if this speaker is charging, look at these to see Charge 4 charging in action and how to know that the speaker is indeed taking on energy.
How to Tell if JBL Charge 4 is Charging
Connect the Speaker to AC Power
Obviously, you can be sure that this speaker is NOT charging when no cord is plugged into it.
Check the Battery Status Lamps
There are five lamps that light in succession as the battery charging moves forward, as we show in the next picture. You can tell if the JBL Charge 4 is charging if you see one of these lamps flashing white. When the battery inside is dead all the way, the light on the far left blinks white while charging. Then as the battery fills, that lamp switches to a steady white glow. At that time, the next lamp to the right starts blinking white.
Also, the speaker heats up a bit during charging as does its charger. This warmth is an excellent way how to tell if the JBL Charge 4 is charging.
When All Lamps Light Solid, Charging is Close to Finished
As speaker charging advances, more and more of the lamps light up solid, and the flashing moves further to the right, until it reaches the last of these five battery level indicator lamps. This next-in-line lighting is another indication that the JBL Charge 4 is in fact, charging.
Note that all the lamps in the battery status meter glow as the speaker nears the end of the charging cycle. But the last one goes on blinking for several minutes. When one light blinks while a working charger is connected, this is another way that the speaker tells us that the JBL Charge 4 is recharging.
The recharge cycle finishes when all charge status gauge lamps go dark. Thus, the battery is no longer recharging when all lamps are OFF. Even with the charger cord still plugged in, no lamp glows when battery is full, and the speaker no longer charges when the battery reaches this state.
Finally, Unplug the Speaker and Turn it On
When you power up the JBL Charge 4, the battery gauge lights for several seconds, showing the current charge in the battery. Now if all five of the battery gauge lamps light up, then this tells you that the speaker did indeed charge fully when connected to AC power.
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References for How to Tell if JBL Charge 4 is Charging
- 2021-08-10: Revised the internal links and tags lists.
- 2020-12-07: First released.