Picture of the JBL Charge 4 packaging, back view.

Charge 4 JBL Watts

The Charge 4 JBL watts is enough to fill a typical room with full sounding tunes. This speaker also has a built in power bank for recharging light to moderate duty phones and smaller tablets.

But what do the watts a BT speaker has, tell us about how good it is?  Firstly, the watt is a measure of how much power the speaker requires and outputs.

Furthermore, this metric is a nifty comparison measure. Why? Because generally speaking, speakers with more watts of audio output tend to play louder than those with less.

Bigger speakers do have some drawbacks however.

    1. They do cost more,
    2. Have bigger, heavier batteries and chargers.
    3. Larger drivers and magnets.

But they nonetheless offer some big plusses.

    1. They have more dynamic range.
    2. Deeper bass response.
    3. Stereo models offer typically a bigger soundstage and better sound imaging to listeners.
Picture of the Charge 4 JBL front view.
The Charge 4 JBL front view.

Thus in general, the more powerful the speaker, the better it sounds, even at lower volume. You get better clarity due to higher accuracy reproduction of the bass, midrange, and treble parts of the music. Plus, more reserve power likely means less clipping distortion too, even at higher volumes. So, the speaker’s maximum watts output is a primary indicator of speaker quality and performance.  And as such, this value is of great interest to audiophiles and novice listeners alike.

In this case, the Charge 4, as a smaller wireless speaker, is a decently loud model. Its watts can fill a small to medium size room with clear music. See below for details on its power output.

Charge 4 JBL Watts: Details

    1. Battery capacity: 27 watt-hours (3.6 volts, 7.5 amp-hours).
    2. USB charger power: 11.5 watts (5 volts at 2.3 amps).
    3. Power bank output power: 10 watts (5 volts at 2 amps max).
    4. Play time per recharge: Up to 20 hours.
    5. Total audio output power on AC (RMS): 30 watts.
    6. Total peak audio power: 42.42 watts.
    7. Output power per channel: 30 watts RMS (only one channel in this speaker).
    8. Audio output power on Battery: Decreases as battery approaches depletion.

Notes on JBL Charge 4 Watts

    1. A low power USB AC adapter (below 10 watts capacity) may not keep the battery from discharging at full volume. But whether or not it does depends on what you’re listening to.
    2. So it could happen that even with the Charge 4 charging, you could still see it shut OFF unexpectedly.  Thus on the (rare) occasions that this occurs, just stop playing it for an hour or two.  This lets it build up some reserve battery power while charging. Then, fire it up again for more party enjoyment.

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