Picture of the UE Roll Bluetooth speaker, front view.

UE Roll Battery Life, How Long the Battery Should Last

The battery life on the UE Roll Bluetooth speaker we will go over here in terms of how long the speaker will play after a full charge, before going dead again.  Then, we will talk about how long the battery will last before needing replacement.

Picture of the UE Roll speaker, back view, showing the built in bungee loosened.
UE Roll speaker, back view, showing the built in bungee loosened.

UE Roll Battery Life Per Charge

How long should the battery last?  The built in lithium ion battery lasts up to nine hours per full charge.  Note that this time varies depending on how loud you play the speaker, and the type of audio you’re listening to. At lower volumes, you might get somewhat longer life, while playing at full volume, you will indeed experience shorter battery life per charge.

UE Roll Battery Life Before Replacement

How Many Full Charges Should the Battery Take ?

This first generation UE Roll battery should provide at least 500 charge-discharge cycles before it loses much power storing ability, over a three to five year period. But you can get much longer life if you follow the life preserving tips given below.

Signs of a Bad Battery

The UE Roll Takes Too Long to Charge

Using a common higher power handling cord, the battery should fully charge in under five hours.  It make take longer if your charger adapter provides less than five watts (5 volts at 1 amp).  But if your cable and charger are strong enough, and yet the battery takes longer than five hours to fully charge, it may be going bad.

The UE Roll Doesn’t Play as Long as it Should

You may also notice that your speaker doesn’t play as long as it did before running down from a full charge to a completely dead.  This is another sign of a battery that is nearing the end of its useful life.

The UE Roll Distorts or Shuts Down by Itself at Higher Volumes

When you raise the volume, like on music that has lots of bass, you may hear crackling or other distortion.  Or, the speaker may cut out or power down when a deep bass drum thump occurs in the music.  This could mean that the battery, even when fully charged, can no longer provide sufficient current for the speaker drivers to play these sounds.  Again, this may indicate a need to replace the battery.

The Battery Level Voice on the UE Roll Gives Wrong Readings

The voice may say that the speaker has one hundred percent charge.  But yet, it goes dead within minutes.  This is a common symptom when lithium ion battery life is declining.

How to Get the Most Battery Life on the UE Roll

Work that battery !  That is, charge the UE Roll all the way, and discharge it all the way.  The power management system built into this speaker appears robust, and well protects the battery from over charging or completely draining, as both of these extremes are very hard on lithium ion batteries.

But we suggest that you do not leave the UE Roll connected to the charger once the charging light goes dark and the battery reads full.  Only keep it connected long enough to achieve full charge.  Then, unplug it right away.

Also, when the battery does run out of power, do not leave it in this deadened state for long.  Charge it immediately.  We suggest that you recharge your speaker as soon as possible, as these batteries don’t like being dead.  Indeed, a dead battery for too long often results in a ruined battery.


Replacing the battery in the UE Roll typically fixes the above mentioned problems.  But only replace with a battery of similar type — preferably the same make and part number as the original.

Also, keep in mind that taking the speaker apart to install a new battery usually destroys its water resistance.  So after replacing the battery, keep the speaker away from water to prolong its life.

Finally, you can often avoid ever having to replace the battery due to shortened battery life, by keeping your UE Roll speaker battery charged, but exercised as mentioned. This provides the greatest number of deep charge-discharge cycles from it in our tests. But if you won’t be using the Roll UE for a long period, charge it to full before storing in a cool, dry place.

Picture of the UE Roll speaker, back view, connected to USB power and charging.
UE Roll speaker, back view, connected to USB power and charging.

Other Posts About the UE Roll

  1. UE Roll Firmware Update Instructions
  2. Reset UE Roll Speaker Instructions
  3. How to Tell if UE Roll is Charging, Recharging
  4. UE Roll Pairing Instructions for the Roll UE Speaker
  5. How to Pair UE Roll with iPhone

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  4. How to Check Battery on Ultimate Ears Wonderboom 2
  5. JBL Flip 4 Battery Life, How Long the Battery Lasts

References for UE Roll Battery Life

  1. UE Speakers Product Page at UltimateEars.COM

Revision History

  • 2020-07-06: First published.
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