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Post originale di: Mansour ,


Why does my speaker have a reduced playtime?


Hello everyone,

I have a problem with the battery playtime of my '''Harman Kardon Onyx studio 4'''.

On '''max volume''' it lasts '''barely 1h30min''' whereas '''it used to last at least 3h''' (it should last a theoretical 8h of playtime on normal volume).

Thinking that the battery life had ended, I replaced it with a new one and charged it as recommended but the problem persisted.

I replaced the battery with another new one thinking that the other may be defective but the problem is the same.

When plugged to a wall outlet, the speaker works for as many hours as needed, it charges as well, so I don't think there's a problem in the power input. The battery lasts for more than 3 hours on normal volume.

I have another same speaker but newer and the battery lasts for more than 3h on max volume.

What could be the problem? Could it be the charging circuit ?

Many thanks!


Harman Kardon Onyx Studio 2