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//Batteries and questions about them\\

I have been studying and researching about batteries to find out how treat them. Even thought I have found many different opinions I have learnt something. However I still have some questions on which I haven't got answer.
Currently I own 2types of rechargeable batteries(actually 3 but those NiCD's I have are useless since they are 600mAh), new (hybrid)NiMH SANYO eneloop AA and AAA series that I bought recently and other Li-ion battery which is in my phone(950mAh).
So what I know about those new (hybrid)NiMH SANYO eneloop batteries is that they are ready to use batteries which means I can directly put them into device when I bough them without needing to charge them before, but I don't know how should I care about them later. Should I charge them when capacity reaches 10% or less or should I charge them more frequently(like Li-ion), also does these batteries have no, small or full memory effect(remember those are new hybrid NiMH series)?
OK now Li-ion batteries I know they have no memory effect and that it is better to charge them more frequently and that I should fully charge and discharge them every 30 days or so. However I don't know what to do with them when I buy them brand new(separately or with new phone) should I first charge them to full and than use the phone/device or should I first turn on device and discharge battery and then fully charge battery to reset the digital circuit of a 'smart' battery to improve the state-of-charge estimation?

Anybody can help?

[Q] Erratic battery readings

Since installing Cognition, my Captivate's battery life has gotten steadily worse, and I'm reasonably sure that the calibration is off. As it is, even with 3G off, I still barely make it to the end of a regular day. Something's very wrong with the battery calibration. I did flash on a less-than-full battery, which is probably what caused the problem in the first place.
For example: A little while ago, I discharged the battery until the phone shut itself off. I was then able to restart from the same battery two more times (without charging), both times showing 3-4% remaining. The phone stayed on a reasonable amount of time with those charges, and shut itself off nicely when it read <1%.
Just now, i plugged it in, turned it on, and it immediately read 17%. It is now draining at a rapid speed, but it still has too much charge to truly be anywhere near empty. My multimeter reads 3.61v on the 3.7v battery, just for reference.
I recalibrated my battery just yesterday, but there is still a discrepancy between the percent when off and the percent when on. I don't believe I'm actually charging to 100% capacity or draining to 0.
Cutting to the chase: How do I completely zero-out my battery stats and actual charge at the same time for an accurate calibration?

Battery calibration that we follow here is strictly for the OS. Battery too has a chip in it that sends the readings to OS. Let ur battery do its charge-discharge cycles over a couple weeks, and see if its adjusted. Try not to delete ur battery stats again n again. Give both OS and battery to adjust to each other.

Jergling said:
Since installing Cognition, my Captivate's battery life has gotten steadily worse, and I'm reasonably sure that the calibration is off. As it is, even with 3G off, I still barely make it to the end of a regular day. Something's very wrong with the battery calibration. I did flash on a less-than-full battery, which is probably what caused the problem in the first place.
For example: A little while ago, I discharged the battery until the phone shut itself off. I was then able to restart from the same battery two more times (without charging), both times showing 3-4% remaining. The phone stayed on a reasonable amount of time with those charges, and shut itself off nicely when it read <1%.
Just now, i plugged it in, turned it on, and it immediately read 17%. It is now draining at a rapid speed, but it still has too much charge to truly be anywhere near empty. My multimeter reads 3.61v on the 3.7v battery, just for reference.
I recalibrated my battery just yesterday, but there is still a discrepancy between the percent when off and the percent when on. I don't believe I'm actually charging to 100% capacity or draining to 0.
Cutting to the chase: How do I completely zero-out my battery stats and actual charge at the same time for an accurate calibration?
Click to expand...
Click to collapse
If you are on the newest version of Cognition with DG's Cog kernel there is some trouble with it. DG knows about it and is working on a fix. You'd know that if you are reading the Cog thread.

ROM-specific posts should go in their matching sticky in the Q&A subforum. Had you looked in there you would have seen the battery issues with the current version and that DG is working on it.
A search of battery stats would also have answered your question about that aspect. SGSTools allows you to delete battery stats easily.

I guess it might have been faulty to assume that this is a general hardware problem, but I'm not using the newest build of Cog. I'll check my version and then read the release log in the thread l, then. In the meantime I'll go through a couple charge cycles before making any judgements.

Please post in the threads already opened.
On that note, thread closed

[Q] Preferred way to condition your battery?

Hey guys,
I've read what feels like a few hundred posts on conditioning your battery for optimal charge/longevity, but few seem to add up to each other. Some have said use till at 10% then charge, some have said fully discharge then charge to full while powered OFF, and still others say differently.
I'm in the process of letting my Sensation drain fully (edit: it just died!) and figured I'd gather a quick consensus... what's YOUR preferred method of battery conditioning?

[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

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

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.

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.

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
Click to expand...
Click to collapse
"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.
Click to expand...
Click to collapse
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.

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.
Click to expand...
Click to collapse
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

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

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
Click to expand...
Click to collapse
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.

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.

[Q] Partial charging.

Hi everyone,
I just recently found out yesterday that partially charging the HOS's lithium ion's battery is considering healthier than fully charging it. I just read up some articles yesterday and got a lot of different opinions so I was wondering if I could get some advice from fellow users in this thread?
I also heard that shorter discharge cycles are also healthier so I should just plug in my phone when it's above 20%, 30%?
Should I always partially charge and never fully charge (unless I really need to)?
Do I ever fully discharge my battery for any reason? Calibration?
Detailed answers would be nice! Thanks!

The battery will last a lot longer than the time you will have the phone. I think this applies to its health over a LONG LONG lifespan and not something we should worry about.
I think its fine to charge as and when, sometimes i do full charges, sometimes i charge for about 10 mins...
As for calibration, there are mixed reviews on this.. I havent had to do it on the One S, But on the galaxy S i had to do this monthly (due to me flashing daily)
I'd say calibration works. others disagree.