5,606,722 Members 37,337 Now Online
XDA Developers Android and Mobile Development Forum

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

Tip us?
 
mhca
Old
#1  
Member - OP
Thanks Meter 4
Posts: 54
Join Date: Jun 2011
Default [Q] Full charge before first use - needed for correct batt. calibration?

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
Old
#2  
mArtinko5MB's Avatar
Senior Member
Thanks Meter 35
Posts: 187
Join Date: Apr 2011
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
Galaxy Nexus
 
icepally
Old
#3  
icepally's Avatar
Senior Member
Thanks Meter 23
Posts: 168
Join Date: Mar 2010
Location: ID
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.
Retired Devices:
MyTouch 3g | CyanogenMod
T-Mobile Vibrant -TW Bionix-V 1.3.1 | Overstock Kernel
T-Mobile SGS II SGH-T989 DarkSide Evolution ICS 4.0.3 ROM | Amazing!
**Google Galaxy Nexus || JellyBean 4.1 Stock**
T-Mobile HTC ONE S (Temp)
T-Mobile Samsung Galaxy S III || Stock JB!!
Google Nexus 4

Current Devices:
Wifi Apple iPad 3 | iOS7
Samsung Galaxy S4 | 16gb | 4.2.2
 
MissionImprobable
Old
#4  
MissionImprobable's Avatar
Senior Member
Thanks Meter 855
Posts: 2,361
Join Date: Dec 2011
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.
The cat lord is all-powerful!
 
mhca
Old
#5  
Member - OP
Thanks Meter 4
Posts: 54
Join Date: Jun 2011
Quote:
Originally Posted by mArtinko5MB View Post
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.


Quote:
Originally Posted by MissionImprobable View Post
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
Old
#6  
mArtinko5MB's Avatar
Senior Member
Thanks Meter 35
Posts: 187
Join Date: Apr 2011
Quote:
Originally Posted by icepally View Post
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
Galaxy Nexus
The Following User Says Thank You to mArtinko5MB For This Useful Post: [ Click to Expand ]
 
lufc
Old
#7  
lufc's Avatar
Senior Moderator / Resident Priest
Thanks Meter 1447
Posts: 9,505
Join Date: Oct 2007
Location: Blackpool UK

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

Moving to Q&A
Pay attention and participate,Encourage,
not discourage, Listen to advice and accept instruction,
and in the end you will be wise.......... Prov. 19:20
 
Dark3n
Old
#8  
Dark3n's Avatar
Recognized Developer
Thanks Meter 1844
Posts: 1,897
Join Date: Sep 2007
Quote:
Originally Posted by mArtinko5MB View Post
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
Old
#9  
Junior Member
Thanks Meter 1
Posts: 4
Join Date: Sep 2010
Default 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.

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes