Akkuladestand an Spannung erkennen?

Grimmi947ByGrimmi947

Kann man an der Spannung eines Handyakkus den Ladezustand erkennen?

Und wenn ja welche Spannung gehört dann zu welchem Ladestand?

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atoemlein
atoemlein
1 year ago

This is enormously unreliable and is never done.
At best, this goes with new batteries.

  • Deep tension clearly indicates unloaded state
  • but high voltage does not necessarily mean high charge
  • nothing she says about the restkapazidet of the battery, i.e. the energy content. An older battery can perhaps still be charged to the end voltage, but this can be reduced again massively when the battery is loaded.

In any case, a state test must always be carried out under a certain load. A pure voltage measurement is not a load.

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Alex29701
Alex29701
1 year ago

If only the question is how exactly the whole thing is going. The battery has a rated voltage of, for example, 3.7V. If it is fully charged, the voltage rises to 4.2V and if it is completely discharged 3,2V or something. If consumption is constant, it could be converted linearly (3.2V = 0%; 3.7V = 50%; 4.2V = 100%).

In reality, it depends on consumption.

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segler1968
segler1968
1 year ago

Yeah, you can. Which voltages are exactly depends of course on the specific battery.Google according to “discharge curve” and the battery type.

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