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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: Charging currentPosted by Lx_ on: 12/27/2011
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 Romy the Cat wrote:
What I detected is that when the PP3000 starts and begin to charge the battery then it has very slightly different sound then what the battery is completely charged. This is acid battery as it always being charged but apparently the charging current doe has some impact to sound.

This is interesting as it confirms what I have observed myself. Indeed when the battery gets charged the sound is different from when it is charged. I have noticed this especially after the battery is discharged completely (after PP shuts itself down when running on battery). I think this is also true whenever after running on battery, not only after full discharge, but to a lesser extent.

I have also wondered if this could explain differences in sound that I cannot explain otherwise: no other device getting on in the house, yet sound gets worse. Could it be that the PP is charging the batteries? Indeed under normal operating conditions some power must be drawn from batteries, also the batteries discharge naturally. So they must be recharged. I do not know if this is done continuously or if some discharge level must be reached before PP engages the charging circuit (which may impact sound).

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