battery calibration advice needed

[pinklady65]

Thanks to advice on this site I took the plunge and replaced the internal battery on my HP Envy x360. 👍

Everything seems to be working OK but HP Support Assistant says the battery needs to be calibrated.

All the instructions say to charge the battery to 100% then fully discharge the battery to calibrate.

My battery has only ever charged to 80% due to an inbuilt battery life extender.

How do I override this for calibration purposes?

Thanks in advance.

[erico]

HI.

With Lithium Ion batteries there is not a need to fully discharge the battery, in fact it is not recommended to ever go below 20% of charge state.

You can enter the BIOS  ( press power button and immediately tap the F10 key) and  locate the Battery Care option.

Set it to 100%.

Save the change and exit.

[pinklady65]

Thanks but the Battery Care option is not available in my BIOS

[erico]

What is this " inbuilt battery life extender" that you refer to?   I have never heard of it. The only thing that comes close is the firmware(BIOS) Battery Care option.

The battery you purchased must be old stock if it will only charge to 80% at almost new.

[pinklady65]

My mistake, I believe my laptop uses the  "HP Battery Health Manager" that limits charging to 80% to protect the battery when plugged in.  This was a feature that came with the laptop when purchased in 2016 and I've never needed to disable it.

(Background info: The original battery was  replaced by HP under warranty in 2019.  When this battery started to fail earlier this year HP weren't particularly helpful as they could not supply a replacement or direct me to someone who could - presumably as my laptop is now 'old'!  I had no alternative than to buy a compatible battery from another supplier)

I'll take another look in the BIOS, maybe this feature disappeared with an update.

Would it hurt to calibrate the battery even though I cannot fully charge to 100%?

Maybe it's better to leave it alone as it seems to be working 🤞😉

[erico]

Your description of a  "battery Health manager" is what is now called the "Battery Care" option.

Calibration just changes the 100% to the current maximum full charge. It does not change or return the storage capacity of the battery to the design capacity.

The only thing that will return the notebook's mobile use to the original amount of time is replacing the battery with a new one.  So this battery has been in use for two years +. That isn't bad in terms of service life. Perhaps it is time to consider replacing it with a new one.