o How to tell if JBL Charge 5 is charging? Well, this power bank speaker has a strip row of LEDs on the lower front. These lights display battery charge level. Thus, to tell if this speaker is charging, look at these to see Charge 5 charging. Moreover, you can feel the back of the speaker where the cord plugs in. See if you can warming there. 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. Now you may notice that power adapter is cold. In that case, the speaker, then regardless of what the light strip says, is likely not charging.
How to Tell if JBL Charge 5 is Charging: Step by Step Method
Connect the Speaker to AC Power
Obviously, you would know that this speaker is NOT charging without an external power connection.
Check the Battery Meter Gauge
As mentioned, we have an LED strip in the lower center of the front of the speaker. Further, as the battery charging moves forward, more of this strip lights up.
So one way to tell if the JBL Charge 5 is charging, is see this strip flashing white. When the battery inside is completely drained, the bottom of the strip blinks white while charging. Or it flashes red when not charging and the speaker is ON.
Then as the battery fills, the lower part of the strip switches to a steady white glow. At that time, the blinking light moves further up the strip toward the top.
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 5 is charging.
When the Whole Bar Lights Solid, Charging is Close to Finished
As speaker charging advances, more of the battery meter bar lights up solid. Plus, the flashing moves further up that bar, until it reaches the top. As long as some part of the bar blinks, then the JBL Charge 4 is indeed charging.
Note that all the lamps in the battery status bar glow as charging nears completion. But the topmost one goes on flashing for several minutes.
The recharge cycle finishes when all charge status gauge lamps go dark. Thus, the battery is no longer (not) charging when all lamps are OFF. Even with the charger cord still plugged in, no lamp glows. And when battery is full, charging stops as well.