Other: mk5 Toughbook cf-19, mk1 Toughbook cf-53
EDIT: well it seems same things happened with another brand new.. so it may not be the batteries..!?
A laptop computer determines the state of charge by the voltage curve. As the battery discharges, the voltages drops. But the voltage curve changes over time. As a battery ages, the internal resistance increases. This causes the battery voltage to sag more quickly, even if the same amount of charge is available.goji wrote:Ok I'll try that now. Just tell me, what could cause such issue?
Always quote my messages so I get notified quickly!
There is an electronic measuring device that would avoid this. It is called a couloumb meter. It actually measures the quantity of electrons passing through. With a coulomb meter, there would be much less error. But, it adds expense.
Many users report that their years-old batteries have not aged, and retain all the original capacity. They are deceived by the way capacity is measured. It is only determined during recalibration. In between calibrations, the displayed value of battery capacity is "what it was" when last calibrated, not what it is now.
Anyways, calibration of new battery is done, now i'm waiting it to discharge. I'm @85% & get a ~3h runtime.
Strange again compared to the review (notebookcheck) which report a ~5h battery life during regular surf (what i do now)..
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