Most Sony Bluetooth speakers, including the XB33, offer truly portable capability via their lithium ion batteries inside. And when said battery runs down, you can recharge the speaker with an appropriate AC or car adapter. Sometimes though, the Sony SRS-XB33 is not charging fully, or at all. To solve this, we offer information below to help.
How to Tell that the Sony SRS-XB33 is Not Charging
Read the Charge Status Light
You can tell that the XB33 is not charging, by reading the battery status lamp on the top. Now this light is normally dark. But it starts flashing orange during play, when the battery runs low.
But there’s a problem if this flashing keeps up, even when you attach the charger. Why? Because the lamp should change at this point, to solid orange. Then, when the light stops flashing, this means that the speaker is getting some power from the adapter. But if the orange blinking continues, then correct recharging is likely not occurring.
Moreover, the status light shows battery charging status while recharging. So as long as charging continues, this lamp also keeps glowing orange. Then this light goes out when charging ends. But if it keeps glowing after several hours, then chances are, charging is not getting on well.
Feel the Heat
You can also feel the power supply’s side panel ten or fifteen minutes after connecting it to the speaker. At that time, it should feel warm. But if you detect no warmth, then again, the Sony SRS-XB33 is likely not charging very well.
Thus when you see that the speaker is not recharging, you’ll want to deduce what’s wrong and fix it. So in this post, we offer reasons why the Sony SRS-XB33 speaker may not charge. Then we give possible solutions.
Sony SRS-XB33 Not Charging, Reasons and Fixes
As we stated above, it’s normal that the CHARGE lamp pulses orange when the battery inside is about dead. But again, the light should switch to a solid orange glow when you connect the speaker to the charger.
Or, once recharging finishes, that lamp goes dark.
If the light does not start glowing, then several things might cause this. We list these below thus.
1.The Power Outlet May Not Be Live
The Problem
The adapter for the SRS XB33 may not output any current because it is not receiving any to begin with. This can happen due to a defective circuit or tripped breaker. A blown fuse, faulty wiring, or general power failure, may also be the culprit.
The Fix
Check that your outlet has voltage by plugging in a lamp or other device. Then, reset circuit breakers if tripped. And if the outlet has a light switch that controls it, then flip that switch ON. Or, simply try another outlet.
2. The Adapter is Defective or Too Small
The Problem
The Sony SRS-XB33 not charging can also happen because the adapter is outputting SOME but not ENOUGH amperage.
Now as adapters age, their output energy can fall over time. So this power supply might not deliver the correct amount if it is very old. So you may see the 33’s CHARGE lamp turn solid orange, but never go dark.
Note that the XB33 needs 3 amps at 5 volts (15 watts). This allows it to fully recharge in the shortest time of 5 hours. Yet charging will likely go slower if the charger does not deliver on these requirements. This might also occur if you’re using a USB 2.0 charger. Why? Because this older USB standard supplies less than the full 3 amps.
The Fix
The solution is to replace the adapter, that delivers the 15 watts for consistently fastest charging. Use a commonly available 15 watt USB-C power adapter.
3. The Battery in the XB33 is Faulty
The Problem
As lithium ion batteries age, they lose their ability to fully recharge. Plus the characteristics of the charging current they draw, changes as they get older. Normally, as a battery recharges, it draws less current from the charger as it fills. But when cells age, the battery may draw too many or too few amps. Thus, this can confuse the speaker’s charging circuits. They may behave like no charging is occurring. So the CHARGE lamp shows this. It tells this by either never stopping its solid orange glow. Or it never turns ON in the first place.
The Fix
To repair this, replace the battery. But realize that you can’t easily get the old one out of the 33. Indeed, you must take the speaker apart for this. And this, rest assured, is an intricate undertaking.
Also note that doing this likely breaks the moisture seal. So the SRS-XB33 will no longer be safe to use, should you expose it to water afterwards.
Furthermore, breaking this seal may alter the sound quality too. So get someone to replace the battery who knows how to pick the right replacement part. They should also be able to restore the seal to as it was, as they reassemble the speaker.
A good battery should fit well inside the speaker and provide 1.9 amp-hours at 7.4 volts (14.06 watt-hours). But we suggest using only Sony certified batteries for this speaker.
4. The Speaker Might be Defective when the Sony SRS-XB33 Is Not Charging
The Problem
Even with the proper power supply, the current reaching the battery may be too low or high. This can happen when the power management circuits inside the XB33 go amiss. Note that these systems read the battery status. Then they switch off the charging current when they deem the battery to be full.
But when they go bonkers, the battery might see no power at all though the power supply itself is okay. Thus, the speaker never charges. Again, in this case, the CHARGE lamp might never stop blinking, even with the charger connected. The XB33 may also not play as long before going dead until you connect the charger. Or it might not play at all, even with the charger present.
The Fix
The best answer here, is simply to get a new SRS XB33. Why? Because the electronic parts in this unit are quite small and delicate. So unless you can confidently replace the system board(s) yourself, just buy another speaker to save on mental stress.