The DC power input port on the Sony SRS XB40 speaker.
This piece gives a routine for charging the Sony XB 40. Do this easily through the DC power in barrel style port, shown in the pictures below. Note that you can still play your XB 40 as it recharges, without raising the charging time by very much.
The charger you use should provide 9.5 volts at 2.5 amps (23.75 watts) for quickest results.
Note that the XB 40 still charges when running. But depending on how much above-and-beyond recharging headroom that your charger supplies, the speaker might charge a trifle faster when turned OFF.
First, open the water resistant port door.
This exposes the barrel type DC input input port as we see next.
Then, plug the barrel end of the cable into the port on the back of the speaker, as we see in the next shot.
Now that we connected the XB 40 and our adapter, we then plug the mains end of the adapter into a working AC outlet, as we show next. We connected ours to a power strip surge protector.
The CHARGE lamp lights up solid orange on the speaker. And while no battery status gauge shows percentage of charge, this lighted lamp means that charging is occurring. We show this light next.
Full battery charging is complete when the solid glowing CHARGE lamp on the top panel, behind the Power button turns off, as shown next.
Also, close the port cap to maintain water resistance.
We have now fully charged this speaker.
Finally, repeat this recharging every twenty-four (24) hours of play, or any time the 40 goes dead, to keep the battery in top condition for years to come.
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