The Flip 2 JBL speaker has a group of LEDs in its silver panel, as shown in the pictures next. These display battery fullness and charging status. In brief, the JBL Flip 2 battery indicator shows charging progress. Plus it also shows how full the battery is when not recharging.
JBL Flip 2 Battery Indicator: How to Read the Lights
1. All Lamps OFF
When you power down the Flip 2 with no charger connected, no lamps light up. The lamps also all show dark when the charger IS present but charging is complete.
2. JBL Flip 2 Battery Indicator Shows Battery Recharging Progress
There are five lamps that light in succession as battery charging advances. This speaker is charging when you see one of these lamps blinking white. When the battery is very low, the light on the far left blinks white while charging. Then as charging continues, that lamp stops flashing, and assumes a steady white glow. Then, the next lamp to the right starts blinking white as the battery begins filling.
Note though, that you may see the first lamp (far left) blink red. This does not mean that charging is proceeding however. Instead, it means that the speaker battery is quite low, nearly dead. So a red light signals you to recharge the speaker soon.
Now this red light only flashes when the battery is almost dead and AC power has not present. But when you do connect power, this red flashing light turns white. Remember. This light never flashes red during correct charging.
3. When All Lamps Light Up Solid, Charging is Complete
As speaker charging advances, more of the lamps light up solid. So the flashing LED moves further along, until that blinking reaches the last position.
Battery charging is about done when all but the last of the battery status lights light solid. The last one continues to blink for several minutes. Again, you know that charging is happening if one of the battery charge level lamps is flashing white.
This next picture shows the speaker just before completing a full charge cycle. Note that all the lamps in the battery status meter are glowing. However, the last one continues to blink.
The battery recharge cycle finishes when all battery status indicator lights turn off.
Thus, the battery is no longer charging when all lamps are OFF. Even with the AC charger still connected, no lamp glows when battery is full.
4. The JBL Flip 2 Battery Indicator Also Shows Battery Fullness when Not Charging
When unplugged from the charger, what was the charging indicator becomes the battery level indicator. The more lights lit, the fuller the battery. The fewer glowing lamps, the less speaker run time remains. These lamps show battery status for a brief time after you power up the Flip 2. They also show it whenever you press any of the buttons. Now to save power, these lamps go dark after some seconds. So to see the battery charge remaining indication once more, just press the volume UP or DOWN buttons. Doing this brings the lamps back to life.
Finally, when the battery goes very low, the rightmost lamp in the battery indicator flashes red.
JBL Flip 2 Battery Indicator in the Portable App
Unfortunately, the Portable app does not support the Flip 2. So you won’t be able to read its battery indicator there.