Sony SRS XB33 speaker front left view.
The Sony SRS XB33 Charging Indicator LED lamp is on the top button panel, just below the Power pushbutton. This tells charge status. E.g. Whether it’s draining or charging, or whether it’s very low. But it does not show charging progress, or exactly how full the speaker is. However it does blink orange in short but widely spaced pulses, when the unit hits close-to-dead status. These pulses increase in frequency as the charge remaining falls further. So in this post, we discuss how to read this Charging Indicator LED on the XB 33 speaker.
Note that for a more exact reading of charge remaining percentage, see below.
The Charging Indicator lamp (Sony labels this as the CHARGE lamp) is dark in the following scenarios:
With the charger unplugged, the XB33 running, and the speaker with very low charge, this LED begins blinking orange. This means that the speaker will shorty cut off due to a dying battery. So you should put it on the charge soon to avoid play interruption.
This orange LED also lights steadily (no blinking) as the 33 recharges, as we see in the next picture. On this unit, the light glowing is the only visual means of knowing that charging is happening. But it does not show how far along the recharging is, until the light actually turns OFF.
Also note that this light should never flash on and off during recharging the speaker. If you see this, then either your adapter is not working, or your USB cord is faulty. Or the speaker itself may be defective.
As speaker charging advances, the light stays steadily lit. No blinking. But after a few hours, charging finishes, and the lamp goes OFF to show this. It goes dark in this case whether the speaker itself is ON or OFF. Note that the light turns OFF as well, if you disconnect the charger before the charge cycle completes.
When unplugged from the charger, this light becomes the charge left indicator. Well something like that. So if it is dark when the speaker is ON, then the battery has some play time remaining. But you cannot tell exactly how much. If it flashes though, then you can deduce that the speaker is about to run dead.
However, on the XB33, you can also get a more accurate reading on the percentage. So you don’t have to rely on just Charging Indicator lamp for charg status.
For that, just press and release the LIGHT-BATT button in the rear button and port compartment. Find it just above and to the right of the USB-C input port. This makes the speaker announce the power remaining as a percentage value. And it speaks this in a female voice.
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