The maximal battery life for LiIon can be accomplished like they do with Hybrid/Electric cars. If you cycle from 80% to 40% you will get 10x the battery life (equivalent total Ah used) compared to charge and discharge from 100% to 10%. In fact, leaving a LiIon battery around the 100% to 90% range or under 10% permanently reduces capacity (it's chemistry)
If you have root, is there a script or app to stop charging at 80%? I suppose the batteries are not quite laptop expensive, so I guess for $30 you can just buy a new battery when you go through the 500 full cycles.
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I notice the "tips" to use it to charge it to 95% MAX, and use it to no less than 5%. Are these claims true? I have no problems of re-charging it before the 5% mark, but to constantly keeping an eye on the phone while charging it can be tedious and annoying.
Anybody can shed some light my way regarding this subject?
Thank you!
Well, your anker lipo would feel better (and any other lithium polymer battery for that sake) if you would not do full cycle every time. Full cycle means you goes from full to empty charge/discharge. (95 down to 5% counts almost as a full cycle)
Say chemistry in lipo can make 200 full cycles before 20% capacity lost or 500 half cycles (like from 100 to 50% and then recharge to 100%). See the difference, longevity will be bit better with half-cycles.
If you store lipo for prolonged period of time (like month) then don't charge it to 100% but to 50%.
And don't keep your phone in high temp zones (like in a sun in the car) this will kill lipo in no time.
Other then that just enjoy your anker. It's cheap enough to replace it in 500 half-cycles (which might be translated to couple years)
Thanks for the response! From the way you describe it, it sounds very familiar with how my lipo batteries for my rc cars work.
I usually charge my phone at 30% mark to fully charge. So, given that, it'd be ok for me to charge it overnight (to 100% then trickle charge until morning), and let it discharge to 30 - 40% then recharge.
Phone will stop charging lipo when it reaches 4.2V so there is no problem to over-charge it... keep it on a charger overnight.
I do one full cycle about once in month but this is for different reason.
Usually, I can go from 100% at morning to 40% at evening in two days. Then recharge it overnight. I think my Anker 2200mAh will outlast my SGSII.
i just got the phone yesterday (att) i charged the first time in 4hours , is that okay cause people told me that i needed to charge in +8 hours ,and now do i have to use the phone to die completely and charge it again or just need to low battery ? sr for my bad English
kevintran.98 said:
i just got the phone yesterday (att) i charged the first time in 4hours , is that okay cause people told me that i needed to charge in +8 hours ,and now do i have to use the phone to die completely and charge it again or just need to low battery ? sr for my bad English
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here is the answer for your question:
Lithium-Ion - Li-ion batteries are the newer type of battery that are found it most newer cell phones (most definitely most, if not all, smartphones use Li-ion and many "dumbphones" use them too now). Li-ion can be thought of as "smarter" than NiCad batteries; Li-ion batteries don't suffer from the "memory effect" and thus don't need to be conditioned like NiCad batteries.
Rather, to condition a new Li-ion battery, fully charge it; it should be allowed to charge for 7-8 hours on the first, initial charge. In other words, when you get your new cell phone - and it has a Li-ion battery - allow it to charge for 7-8 hours even if the cell phone claims to be fully charged. (It is preferable to use outlet charger vs car charger or USB charging via computer because of the voltage difference.) After that, there is no reconditioning necessary for Li-ion batteries since they don't suffer from the "memory effect". However, be sure to avoid fully draining/discharging the Li-ion battery as much as possible; every time a Li-ion battery is fully discharged, it loses battery power and life. (That doesn't mean your battery will die if it is ever fully discharged; it means it is best to avoid fully discharging when possible.) Try to recharge Li-ion batteries when they are at 15-25%. Similarly, avoid heat as much as possible and when (if) storing Li-ion batteries, store them not at full charge.
Update: The only time you should ever intentionally fully discharge a Li-ion battery is if your phone is not properly reading the battery. In other words, if you go from 100% -> 90% in ten minutes but go from 90% -> 80% in one hour with the same amount of usage, that means your phone is not reading the battery output evenly. If this is the case, then fully discharging your battery once and then recharging it can fix the issue of your phone not reading the battery properly. Take note, however, this full discharge/recharge won't increase your battery life -- it will only ensure your phone reads the battery properly.
People often confuse Li-ion and NiCad batteries and try to condition Li-ion batteries by charging/discharging them 4-6 times. Trying to condition a Li-ion battery like it is a NiCad battery (i.e. charging/discharging the Li-ion battery 4-6 times) hurts the Li-ion battery more than helps it. So, be sure to condition your new cell phone's battery, but be sure to condition it properly. Otherwise, you may be doing more harm than good. If you are not sure what type of battery you have, read the labels on the battery - they will always say whether the battery is Lithium-ion or Nickel-cadmium. Good luck and may we all have long lasting batteries.
p.s. i got my one x yesterday too and is most beatiful phone in the world
Is it okay to charge the phone when it is not fully out of battery? I usually charge my phone at about 40% and my battery life isn't that great.
yea
Yea its fine
It can actually can actually damage Li-Ion batteries to be fully discharged, especially for extended periods of time. It's also not good for them to be 100% charged for extended periods of time (overnight charges are a fact of life, and your battery will obviously survive). The ideal charge for them is somewhere between 40-80%. So what you're doing is actually good practice: recharge once battery gets below 40. Also, if you aren't going to have to be away from a charger all day long, it's best to unplug at around 80%.
So I have a zerolemon 10000 mah battery for my note 3, I just switched to cm11 and noticed the battery percentage meter was going wacky and wasn't being accurate (eg. It would jump up 10 percent after a reboot or last hours on 1 percent with heavy use) so I followed the instructions for fixing it, I let it drain completely and then I charged it to 100 percent while the phone was off, then I turned it on and charged it again until it showed full just like it said to do in the instructions, after this I went into my battery status app just out of curiosity, there I saw that the battery had 4250 mv , I am alarmed by this because the battery is only supposed to be 3.9 voltz, is my battery damaged? I always thought that the batteries have circuits in them to prevent overcharge then how come it overcharged my battery??
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Actually battery voltage is a little bit tricky:
first of all it will show higher with no load than with load on it and higher the load, lower the voltage, full charge or not.
Secondly for example my original phone battery is rated 3.8v, but at full charge will be higher than 4 volts.
I don't remember how Li ion batteries are rated, but for example NiCd are rated at 1.2v, which would be the voltage the battery shows when under full load, under no load the voltage will be more than 1.5v and if that NiCd battery shows 1.2 v under no load it usually means it's close to being completely discharged. I don't have specs for your particular battery, but I'm sure fully charged with no load will show more than 4v.
Since the battery has protective circuit, it should still be within specs, before the damage occurs, so I don't think you should worry too much, however if you were doing this all the time, I'm sure you will shorten battery life.
Full charge for lipo is about 4.2V. So the battery is not overcharged. The batteries have a protective board on them, and the charge control on the phone won't allow overcharging either.
So I bought myself a decent USB multimeter (RuiDeng UM25C) because I was curious about my Mi 6 battery capacity after 20 months of everyday heavy usage.
I was avoiding charging to 100% all this time (max to 70%), only charging to full once a month maybe and never using a phone during charging. I also rarely discharged to less than 30%. The full charge counter in /sys/class/power_supply/bms/cycle_count is showing 642 full accumulated charge cycles, so quite a lot.
USB meter showed 14300 mWh after a full charge 0-100% (which is 110% of the original capacity 12900 mWh, impossible). So I did a search and found an article saying that Quick Charge 3.0 has around 90% charging efficiency.
So I made a quick mathematics and calculated that the battery should have taken in 14300 mAh x 90% = 12870 mAh (the rest of energy dissipated as a heat), which is basically new battery's capacity (which is again quite improbable, even with my special battery treating ).
My question is: is this calculation wrong? And if it is totally wrong - what should I count in additionally to get the more proper mWh estimation?
Thanks for any help