[Q] Full charge before first use - needed for correct batt. calibration?

mhca · May 5, 2012

Hi guys

I know this question has been asked many times before... whether to fully charge before using the phone the first time.

I believe this is something which stems from the time before Lithium-ion batteries.

However, I wonder if there is something with the battery stats which will be affected by turning on the phone before completely charging the phone?
In CWM there is a Wipe battery stats function... I was thinking if this was deleting some sort of info about the battery which was created the first time the phone is installed....

Some battery stats/calibration or similar is the only thing I can imagine which would benefit from having a full charge before first use. Can somebody enlighten me?

My girlfriend will be buying a new phone tomorrow (HTC Sensation on sale), and I would like to know first if their are any benefits to charging before first use?

Please don't just guess or come with comments like "I just used mine right away, no problems".

Thanks in advance.

BR, Martin

mArtinko5MB · May 6, 2012

Dont need any calobration soft or fully charged battery. Use it as you need.mentioned soft for calibration is needed when you flash device with new Rom to reset old settings

Regards

Sent from my LG-GT540 using XDA

icepally · May 6, 2012

Fully charging the battery, without intermittently taking it off the charger, running it down fully, then recharging it fully is the best thing to do.

MissionImprobable · May 6, 2012

It needs a full charge before the first use so that the phone will understand what a full charge is but that's about it.

mhca · May 6, 2012

mArtinko5MB said:
Dont need any calobration soft or fully charged battery. Use it as you need.mentioned soft for calibration is needed when you flash device with new Rom to reset old settings

"to reset old settings". When are these settings created? I'm thinking if the original battery settings are created at first boot on a brand new phone.

MissionImprobable said:
It needs a full charge before the first use so that the phone will understand what a full charge is but that's about it.

How does the phone understand what a full charge is? Does it create some battery settings file at first boot?
If not, then I guess fully charging could be done while the phone is being used by the user?

I haven't become more certain from the above answers... I still don't know if the phone somehow does a calibration to the fully charged battery which could be a reason for charging it before first boot.

mArtinko5MB · May 6, 2012

icepally said:
Fully charging the battery, without intermittently taking it off the charger, running it down fully, then recharging it fully is the best thing to do.

no offence, but this is bull****. This treatment of battery was good for old mobiles and absolutelly not neccessary for smartphones. Don't mess with him. I didn't fully charged battery in first use, now on my gt 540 with optimized 2.3.7 can get 5 day on battery !

Don't be confused by battery settings, they are stored in system, you mustn't bother with that.

Fully charged means 100% shown on status bar, nothing more nothing less. System know how to treat battery, no need for calibration(it's needed only when changing ROM -> new system -> new treat -> need to reset old settings)

Your only task with battery is, once a month drain her to 0% and charged to 100% without abortion (but also not neccessary), and charging mainly when 30-40% of battery. It's not recommended to go under there values for good life of battery

Regards

lufc · May 6, 2012

Please use the Q&A Forum for questions &
Read the Forum Rules Ref Posting

Moving to Q&A

Dark3n · May 6, 2012

mArtinko5MB said:
no offence, but this is bull****. This treatment of battery was good for old mobiles and absolutelly not neccessary for smartphones. Don't mess with him. I didn't fully charged battery in first use, now on my gt 540 with optimized 2.3.7 can get 5 day on battery !

Don't be confused by battery settings, they are stored in system, you mustn't bother with that.

Fully charged means 100% shown on status bar, nothing more nothing less. System know how to treat battery, no need for calibration(it's needed only when changing ROM -> new system -> new treat -> need to reset old settings)

Your only task with battery is, once a month drain her to 0% and charged to 100% without abortion (but also not neccessary), and charging mainly when 30-40% of battery. It's not recommended to go under there values for good life of battery

Regards

I agree.
Fully charging and discharging was a practice to deal with the memory effect of older NIMH or NICD batteries.

Putting unnecessary charge cycles on todays cell batteries, just lessens their lifetime. They all offer an amount of charge cycles and each cycle reduces their capacity. The detailed amount of chargecycles that is sometimes in some infos, is usually something like after X amount of charge cycles the battery reaches 80% of its original capacity.

I'm not sure but i would guess that the phones determine the charge status through hardcoded characteristics of the used battery type, i.e. voltage dropoff etc. Fully charged at 4.22V, etc etc.

The batteries in our phones don't come fully charged is probably because storing these types of batteries at full charge for too long actually hurts them.
Storing them at something like ~3.8V is recommended for longer periods.

I'm no expert on this topic, so tell me if you find something wrong in my statement

, i'm eager to learn.

wesblake · Jan 2, 2014

Already proven

I wish I could find the article, but there was an experiment run on lithium ion batteries, particularly based on proliferation of mobile and these exact questions, where they ran down/recharged in different scenarios (different discharge percentages) until the battery went bad. They determined that the more you charge (the less you let it drain before re-charging), the more cycles your battery lasts. So it's as some have said, exact opposite of an old NiXX tech. This was done to < 10% increments, so they showed even a decrease in cycles between recharging at 95% and 90%
Moral of the story, don't let you're battery drain completely or even get too low, and charge as often as you can. This is why I use a dock on my desk at work.

Topics

Topics

[Q] Full charge before first use - needed for correct batt. calibration?

mhca

Senior Member

mArtinko5MB

Senior Member

icepally

Senior Member

MissionImprobable

Senior Member

mhca

Senior Member

mArtinko5MB

Senior Member

lufc

Retired Senior Moderator / Resident Priest

Dark3n

Recognized Developer

wesblake

Member

Similar threads

Top Liked Posts

New posts