So I see that they make a G3 slim battery that does 3900 MAH.
This one is a 3850
and this one is the 3900
I've been wanting an extended battery but dont want to mess with the form factor and have and ungly back, anyone know if this is a good battery?
I never trust slim bigger MAH
2SHAYNEZ
It is just a lie.
Until new technologies arrive (and we will hear about it, trust me), the capacity of a battery is directly proportional to its size. If the battery has a similar size, then it will last for the same time, regardless of the label or how you measure capacity...
I've tested for years a ZeroLemon slim battery for my Galaxy S4 that was supposed to be higher capacity (going back and forth between this one and the official battery), and they were exactly the same.
And I wouldn't trust any brand you can find on eBay or Amazon marketplace, unless you want to risk some explosion in your pants
There are a couple of ways to get additional capacity out of a battery the same physical size, all of them bad. You can make the insulating layer between cells thinner, allowing for more of the battery to contain chemistry to generate power. At the risk of leakage and fire.
The other way is to play with the circuitry in the battery that reports charge levels to the phone. All name-brand Li batteries leave some margin for error, so that when it reports 100% it's not really quite fully charged, and it reports 0% before it's totally drained. It's possible to build a battery without that safety margin, so it will last a bit longer on a charge. But overcharging Li batteries is very bad for battery life, and draining them completely is also bad. So a battery that uses this technique will wear out a lot sooner. If you've ever seen a battery swell, so the sides aren't flat, that's probably a sign of overcharging.
But I think most of these aftermarket batteries don't use either technique, and the capacity claims are just flat out lies.
Related
I recently bought a BA battery advertised as 2400 mAh for around $20 US.
However, it only charges up to 58%. I've tried charging it for 8 hours or more, discharging it a little bit, and recharging it, but the indicator never goes above 58%. I am charging it from inside the BA, with USB power.
The battery says:
Replacement for XDA III/MDAIII
Model: PH26B
Rating: 3.7 VDC == 2400 mAh
Rechargeable Li-ion Polymer Battery
...
Made in China
Researching some more, I notice that the "PH26B" part number is used on both 1500 mAh batteries and 2400 mAh batteries, by different sellers. It can't be both, can it?
The sites which list it as 2400 mAh tend to be less reputable sites from places like eBay, with deals which seem too good to be true.
And yet the battery I bought says both PH26B and 2400 mAh on it, so it is not simply the seller misrepresenting the product (i.e. if it's a scam, it extends to the manufacturer).
My questions are:
1. What exactly is the PH26B designation, if it is not a unique part number?
2. Are there any model-specific compatibility problems between certain batteries such as PH26B, and certain models of Blue Angels, or are all BA batteries interchangable between all BA models?
3. Is there a scam going on where BA batteries are being sold as 2400 mAh, even though they are only 1500 mAh? The 2400 mAh battery I have, is not much thicker than most 1500 mAh batteries, which makes me suspicious. (It is only about .5 mm deeper than the BA case where the "Windows Mobile" logo is printed.)
4. Why does my battery indicator stop at 58% with the 2400 mAh PH26B? (I've tried it in both my SX66 and PPC6601, with the same results.) 58% is approximately 1400 mAh / 2400 mAh, so if the charge indicator is a measure of the true charge as compared to the claimed capacity, then 58% would be what you'd expect from a battery which is only 1500 mAh but claims to be 2400 mAh.
5. I've often heard that you must be careful when first charging BA batteries, or else permanent damage could result. I did everything "by the book" -- backed up my data, changed the battery in my BA to the new one, and left it charging in the BA for hours -- but it still only goes up to 58%.
6. Do I need to do a more severe hard reset, such as leaving the battery out for 30 minutes, and/or completely draining the battery before recharging it, in order to get the charge cycle fixed?
I know I can trust Lion Battery (whose 2400 mAh Mugen batteries cost around $72 US instead of $20 US). I've already done business with them before. I am not in any immediate need for a BA battery. I just recently bought a spare one as a "deal" which was apparently too good to be true, and I'm trying to figure out the origins of it, since it's apparently very widespread -- simply search Google or eBay for 2400 xda, and you'll see hundreds of deals for these 2400 mAh BA batteries for under $20 US. It's so widespread that I don't think it's bad resellers trying to rip people off, but a bad manufacturer misrepresenting their batteries (and spoiling the good ones), or some kind of mass confusion about BA battery types and their true capacities.
Or maybe I'm too cynical, and I simply got one defective battery out of a normally good lot.
http://forum.xda-developers.com/viewtopic.php?t=35333
mark1316 said:
http://forum.xda-developers.com/viewtopic.php?t=35333
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Click to collapse
Already read that. No help there.
There are 2400 mA batteries out there that do NOT work correctly. We worked with our mfg for 3 mos and six different revisions before we could get a working battery.
Chances are the $20 battery is some of the early batteries that did not have the microcontroller on the battery programmed correctly.
16 hours after charging with an AC-adapter-powered cradle, the battery has gone down from 58% charged to 9% charged. The backup battery is down to 75% charge.
The cradle is being supplied 5 VDC at 2A (USB current is not usually enough to charge batteries -- only to sustain their charge).
The battery is not being charged in the auxiliary slot, but is inside the PDA, which is docked in the cradle.
I have removed the battery for 1 minute, then reinstalled it. The main battery indicator still says 9%. The backup battery has gone up to 100% in less than 5 minutes. I may need to remove the battery for longer than 1 minute to force a hard reset.
The indicator LED is blinking red-orange every three seconds.
I will leave it to charge some more, but I expect it's a DOA battery that should be returned or trashed.
Is it the capacity they write it ??
I think they can also said the battery with 8000mAh... it's very simple
reprit the label and mark it as 8000mAh with the same battery..... 8)
MugenPower said:
Is it the capacity they write it ??
I think they can also said the battery with 8000mAh... it's very simple
reprit the label and mark it as 8000mAh with the same battery..... 8)
Click to expand...
Click to collapse
They say 2400 mAh. There does not appear to be any evidence of tampering with the label, which means it's not some amateur glueing or writing "2400 mAh" on top of a 1500 mAh battery, but something more sinister.
Without being sarcastic, could you please tell me whether there really is such a "reprinting" scam going on, and what the true capacity/designation of a PH26B is? What other signs to look for, and how to determine the true capacity (by special charging methods, by physical examination of the battery, etc.)?
I'm guessing it's some Asian scam, where some manufacturer is printing look-alike labels, and overstating the capacity of the batteries, and selling them at a very cheap price to resellers, who then go online and sell it for 50-100% profit, while still looking like a "bargain" to the real 2400 mAh batteries, such as Mugen's. (BTW, do you really work for Mugen?)
How can we tell the fake 2400 mAh's from the real ones?
Mungen Power HLI-XDA2SSL 3.7v 2400mAh Lithium Ion Battery fo
Mungen Power HLI-XDA2SSL 3.7v 2400mAh Lithium Ion Battery for XDA IIs Battery PH26B £19 From M Jefferie, eBay 30 Nov 2005
Tested this battery and satisfied myself that it operates for days passed the 1500mAh replaced
I know about Mugen batteries and their reliability. I have some. I'm talking about cheap knockoffs which claim to have 2400 mAh capacity but which don't. It's a widespread scam going on right now.
It may not necessarily be a scam, just very, *very* shoddy goods. As you said probably asian and very cheaply made. I suppose you get what you pay for...
Here's a pic of the bad 2400 mAh battery. It uses the same part number which I've seen on many 1500 mAh batteries.
PH26B is likely just to be the shape and connections... so you know any PH26B will fit a BA (or any other device which might take a PH26B)
leek said:
MugenPower said:
Is it the capacity they write it ??
I think they can also said the battery with 8000mAh... it's very simple
reprit the label and mark it as 8000mAh with the same battery..... 8)
Click to expand...
Click to collapse
They say 2400 mAh. There does not appear to be any evidence of tampering with the label, which means it's not some amateur glueing or writing "2400 mAh" on top of a 1500 mAh battery, but something more sinister.
Without being sarcastic, could you please tell me whether there really is such a "reprinting" scam going on, and what the true capacity/designation of a PH26B is? What other signs to look for, and how to determine the true capacity (by special charging methods, by physical examination of the battery, etc.)?
I'm guessing it's some Asian scam, where some manufacturer is printing look-alike labels, and overstating the capacity of the batteries, and selling them at a very cheap price to resellers, who then go online and sell it for 50-100% profit, while still looking like a "bargain" to the real 2400 mAh batteries, such as Mugen's. (BTW, do you really work for Mugen?)
How can we tell the fake 2400 mAh's from the real ones?
Click to expand...
Click to collapse
leek,
yes..I am from Mugen Power. You can check it out from my post.
Actually....smart guy should know that.....how can they make profits if they use good quality of material to make the battery pack and sell it at this kind of cheap price....
if they write the capacity is less than 2400mAh, do u think u will buy their battery .... I don't think u will spend money on a battery with capacity lee than the original..
reply
Hi, I have it now for 6 month now and its workingOK for me.
regards,
Silver
Updated and simplified version here : http://forum.xda-developers.com/showthread.php?p=3846897#post3846897
I've been around this forum for some time now and I have noticed one thing that is spelled in all sub-forums: BATTERY LIFE
So I thought of pulling some info together that is relevant to our Raphs (Li-ion batteries), taken from www.batteryuniversity.com.
Hope you find it helpful and understand better behaviour of your battery
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About the Author
Isidor Buchmann is the founder and CEO of Cadex Electronics Inc., in Vancouver BC.
Mr. Buchmann has a background in radio communications and has studied the behavior of rechargeable batteries in practical, everyday applications for two decades. Award winning author of many articles and books on batteries, Mr. Buchmann has delivered technical papers around the world.
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"If possible, do not discharge lithium-based batteries too deeply. Instead, recharge more often."
Lithium-ion is a low maintenance battery, an advantage that most other chemistries cannot claim. There is no memory and no scheduled cycling is required to prolong the battery's life. In addition, the self-discharge is less than half compared to nickel-cadmium, making lithium-ion well suited for modern fuel gauge applications.
Charging
There is only one way to charge lithium-based batteries. The so-called 'miracle chargers', which claim to restore and prolong batteries, do not exist for lithium chemistries. Neither does super-fast charging apply. Manufacturers of lithium-ion cells have very strict guidelines in charge procedures and the pack should be charged as per the manufacturers "typical" charge technique.
Lithium-ion is a very clean system and does not need priming as nickel-based batteries do. The 1st charge is no different to the 5th or the 50th charge. Stickers instructing to charge the battery for 8 hours or more for the first time may be a leftover from the nickel battery days.
Most cells are charged to 4.20 volts with a tolerance of +/?0.05V/cell. Charging only to 4.10V reduced the capacity by 10% but provides a longer service life. Newer cell are capable of delivering a good cycle count with a charge to 4.20 volts per cell.
A lithium-ion battery provides 300-500 discharge/charge cycles. The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges.
Batteries live longer if treated in a gentle manner. High charge voltages, excessive charge rate and extreme load conditions have a negative effect on battery life. The longevity is often a direct result of the environmental stresses applied. The following guidelines suggest ways to prolong battery life.
The time at which the battery stays at 4.20/cell should be as short as possible. Prolonged high voltage promotes corrosion, especially at elevated temperatures. Spinel is less sensitive to high voltage.
The lower charge current reduces the time in which the cell resides at 4.20V. A 0.5C charge only adds marginally to the charge time over 1C because the topping charge will be shorter. A high current charge tends to push the voltage into voltage limit prematurely.
Do not discharge lithium-ion too deeply. Instead, charge it frequently. Lithium-ion does not have memory problems like nickel-cadmium batteries. No deep discharges are needed for conditioning.
Do not charge lithium-ion at or below freezing temperature. Although accepting charge, an irreversible plating of metallic lithium will occur that compromises the safety of the pack.
Not only does a lithium-ion battery live longer with a slower charge rate; moderate discharge rates also helps.
Discharge of the lithium-ion battery is 5% in the first 24 hours after charge, and then reduces to 1% to 2% per month thereafter. The safety circuit adds about 3%. High cycle count and aging have little effect on the self-discharge of lithium-based batteries.
The battery industry is making incremental capacity gains of 8-10% per year. This trend is expected to continue. This, however, is a far cry from Moore's Law that specifies a doubling of transistors on a chip every 18 to 24 months. Translating this increase to a battery would mean a doubling of capacity every two years. Instead of two years, lithium-ion has doubled its energy capacity in 10 years.
Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate.
Despite its overall advantages, lithium-ion has its drawbacks. It is fragile and requires a protection circuit to maintain safe operation. Built into each pack, the protection circuit limits the peak voltage of each cell during charge and prevents the cell voltage from dropping too low on discharge. In addition, the cell temperature is monitored to prevent temperature extremes. The maximum charge and discharge current on most packs are is limited to between 1C and 2C. With these precautions in place, the possibility of metallic lithium plating occurring due to overcharge is virtually eliminated.
The worst condition is keeping a fully charged battery at elevated temperatures, which is the case with running laptop batteries. If used on main power, the battery inside a laptop will only last for 12-18 months. I must hasten to explain that the pack does not die suddenly but begins with reduced run-times.
The voltage level to which the cells are charged also plays an important role to longevity. For safety reasons, most lithium-ion cannot exceed 4.20 volts per cell. While a higher voltage boosts capacity, the disadvantage is lower cycle life.
"how deep can a battery be discharged and still achieve maximum service life?" There are no definite answers. Batteries are like us humans. Suppose we ate all the vegetables our mother heaped on our plates and do our daily exercise, would we life longer? Perhaps. But by how much, no one will know. Batteries lose capacity as part of aging, cycling and exposure to heat. Nickel-cadmium also loses capacity due to lack of exercise because of memory.
Some lithium-ion batteries fail due to excessive low discharge. If discharged below 2.5 volts per cell, the internal safety circuit opens and the battery appears dead.
Aging is a concern with most lithium-ion batteries and many manufacturers remain silent about this issue. Some capacity deterioration is noticeable after one year, whether the battery is in use or not.
Lithium-ion batteries lose capacity through cell oxidation, a process that occurs naturally during use and aging. The typical life span of lithium-ion is 2-3 years under normal use. Cool storage a 40% charge minimizes aging. An aged lithium-ion cannot be restored with cycling.
Shorted Cells
Manufacturers are often unable to explain why some cells develop high electrical leakage or an electrical short while still relatively new. The suspected culprit is foreign particles that contaminate the cells during manufacturing.
Cell reversal caused by deep discharging also contributes to shorted cells.Specified to deliver 100% capacity when new, the battery should be replaced when the capacity drops to below 80% of the nominal rating.
The self-discharge on all battery chemistries increase at higher temperatures. Typically, the rate doubles with every 10°C (18°F). A noticeable energy loss occurs if a battery is left in a hot vehicle.
Premature voltage cut-off
Not all stored battery power can be fully utilized. Some equipment cuts off before the designated end-of-discharge voltage is reached and precious battery energy remains unused. Applications demanding high current bursts push the battery voltage to an early cut-off. This is especially visible on batteries with elevated internal resistance. The voltage recovers when the load is removed and the battery appears normal. Discharging such a battery on a moderate load with a battery analyzer to the respective end-of-discharge threshold will sometimes produce residual capacity readings of 30% and higher.
Counterfeit cell phone batteries (clone batteries)
In the search for low-cost battery replacements, consumers may inadvertently purchase clone cell phone batteries that do not include an approved protection circuit. Lithium-ion packs require a protection circuit to shut off the power source if the charger malfunctions and keep on charging, or if the pack is put under undue stress (electrical short). Overheating and 'venting with flame' can be the result of such strain.
Cell phone manufacturers strongly advise customers to replace the battery with an approved brand. Failing to do so may void the warranty. Counterfeit cell phone batteries have become visible since the beginning of 2003 when the world was being flooded with cheap replacement batteries from Asia.
Cell phone manufacturers act out of genuine concern for safety rather than using scare tactics to persuade customers to buy their own accessories. They do not object to third party suppliers in offering batteries and chargers as long as the products are well built, safe and functioning. The buyer can often not distinguish between an original and a counterfeit battery because the label may appear bona fide.
Caution should also be exercised in purchasing counterfeit chargers. Some units do not terminate the battery correctly and rely on the battery's internal protection circuit to cut off the power when fully charged. Precise full-charge termination and a working protection circuit are needed for the safe use of the lithium-ion battery.
A large number of lithium-ion batteries for cell phones are being discarded under the warranty return policy. Some failed batteries are sent to service centers or the manufacturer, where they are refurbished. Studies show that 80%-90% of the returned batteries can be repaired and returned to service.
© Copyright 2003 - 2005 Isidor Buchmann
Thanks, very good read.
It explains why when flashing a new ROM I felt that I needed to discharge and recharge fully the battery to have an accurate reading.
lots of dispelled rumors and myths ! thanks for the post , its really informative .
i really do hope that capacity goes up though , it would be cool to not have to charge for like 4 days or something crazy lol.
excellent read!
now if I may ask, how dense cells can be packed into a battery? this relates to the min size versus max capacity of a Li-on battery pack.
There's also an issue with the device not reading the battery accurately.
I've read somewhere that full discharge once every 3 months or so is helpful not because of the chemistry, but because how the device reads/calculates full capacity.
g2tl said:
There's also an issue with the device not reading the battery accurately.
I've read somewhere that full discharge once every 3 months or so is helpful not because of the chemistry, but because how the device reads/calculates full capacity.
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Click to collapse
I would think that would only apply to the clone batteries.
Originally Posted by g2tl
There's also an issue with the device not reading the battery accurately.
I've read somewhere that full discharge once every 3 months or so is helpful not because of the chemistry, but because how the device reads/calculates full capacity.
Click to expand...
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Kraize said:
I would think that would only apply to the clone batteries.
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Click to collapse
sorry. disagree. at least from my experience, both original and 'clone' alike need full discharge every now and then.
side note: with overwhelming numbers of batteries or any other components being made in China, who would safely label one is 'original' and the other is 'clone'? God knows.
BumAround said:
sorry. disagree. at least from my experience, both original and 'clone' alike need full discharge every now and then.
side note: with overwhelming numbers of batteries or any other components being made in China, who would safely label one is 'original' and the other is 'clone'? God knows.
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Click to collapse
10/4...if I just may quote what is written in post 1: "..A deliberate full discharge and recharge every 30 charges corrects this problem ("memory" effect). Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate..."
BumAround said:
excellent read!
now if I may ask, how dense cells can be packed into a battery? this relates to the min size versus max capacity of a Li-on battery pack.
Click to expand...
Click to collapse
From what I understand density is controled by proper voltage (3,7 in our case). With different type of batteries you can do "shock" therapy and temporarly overload the current of charging to reformat cells. So I guess it depends on chemical mix in your particular battery, because as we've learned those chemicals are being replaced with different ones and very often by manufaturers and to us consumers it might seem we use same batteries, but technically speaking exact same batteries bought in different places may perform differently just because of what's inside. Not speaking of aging effect which is the worst out of all batteries (process starts right after battery is manufactured and no matter if is used or not, therefore li-ion batteries are kind of like vegetables-not good if too old )
bauerpavel said:
10/4...if I just may quote what is written in post 1: "..A deliberate full discharge and recharge every 30 charges corrects this problem ("memory" effect). Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate..."
Click to expand...
Click to collapse
hmm, I must have skipped over that part while scrolling down.
Thx for the confirmation.
Easy way to discharge battery quickly, Flash your phone 4 or 5 times in a row, always seems to nuke my phone when testing ROMs while cooking!!
Great post
This should be made one of the stickies, not in the ROM thread though, maybe in the accessory thread?
gmgonzal said:
This should be made one of the stickies, not in the ROM thread though, maybe in the accessory thread?
Click to expand...
Click to collapse
I'm planning on moving it to just "Raphael" section....as for the stickie, that's not my call
PS:Thread moved to more "appropriate" section "Raphael" rather than "ROM Development"
http://forum.xda-developers.com/showthread.php?t=518861 ....sorry for confusion!
Admin please close this thread.
Not too fast...
B4PJS said:
Easy way to discharge battery quickly...
Click to expand...
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The article mentioned it was wise to avoid stressful discharges as well as fast charging.
Not only does a lithium-ion battery live longer with a slower charge rate; moderate discharge rates also helps
Click to expand...
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It makes the case for those .5 car chargers and charging from the USB port…David.
Hello everyone,
Getting my G2 tomorrow ad was wondering what's best to do for the initial charge ?
What did you all do and how do you find your battery because of it ?
Cheers James
hi there mate
I did a 3-4 hour charge until the battery was fully charged...the orange led charge thing goes green and its fine then
right now im managing to get a day with heavy use, which is good
Thanks immya
Any other advice please ?
I atcually do the same. But i repeat the process of fully charge and discharge the phone completly about 2-3 times. So the battery gets well trained. I repeat ist about every 2 months. I know it should not be relevant with those new batteries, but i found out it is, and the battery last longer.
jut my 2 cents
Cheers,
Chaos42
it's 2009, just charge it and use it.
when i got mine the battery was ~1/3 full, i charged it till ~2/3, then had to leave and completed the initial charge like two hours later, all works fine, getting somewhat between 4 hours and 3 days of usage.
chaos42 said:
I atcually do the same. But i repeat the process of fully charge and discharge the phone completly about 2-3 times. So the battery gets well trained. I repeat ist about every 2 months. I know it should not be relevant with those new batteries, but i found out it is, and the battery last longer.
jut my 2 cents
Cheers,
Chaos42
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Click to collapse
Hey chaos42
What do you mean should not be relevent with the new batteries ?
Is there some sort of new batteries with the newer phones ?
Thanks
James
no, what i meant was what immya just said. that with the modern Li-Ion batteries you should not worry to much about how and when to charge. I just wanted to add that even it is 2009 i observed a far better battery lifecycle and stamina when you try to take care of your batterie. and charge it as decribed. that's my experience. at least for the initial 2-3 charges.
cheers,
chaos42
not that i am trying to discredit you here (in fact i would be very interested in such numbers myself), but did you do any tests or comparable setups to check the difference? because if we are talking about "a feeling" that you have this is IMHO not really relevant data. i would like to see two identical phones in a (at least) similar environment, performing the same tasks the same amount of time a day, and with that getting different runtimes on the battery for a period of a few weeks. these two phones don't need to be heros necessarily, as long as they have the same type of battery and can produce comparable results, but as long as this doesn't happen i myself rely on the tone on li-ion batterys in general. which is (and i am not able to quote or prove this): they are robust in terms of regular charging, and worrying about wearing the batterys in or training them isn't worth the effort. again no discredit here, but as long as no comparison has taken place there is effectively no data to analyze... just too much variables.
jameslfc5 said:
Hey chaos42
What do you mean should not be relevent with the new batteries ?
Is there some sort of new batteries with the newer phones ?
Thanks
James
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NiCad batteries work best when fully discharged before re-charging otherwise you get what is called the memory effect. If you are in the habit of topping up before being fully discharged the better 'remembers' how much you let it drain before charging it and then get's the idea somehow that this is what its capacity is and goes flat at the point that it 'expects' to be recharged.
NiMH batteries are much less prone to memory effect. They are the ones that need the 16 hour first charge then subsequent charges are shorter.
Li-Ion - lithium to its friends - are not supposed to suffer any memory effect at all. You are supposed to be able to top up as and when you want without any detrimental effects.
None of the above batteries will last forever and will need replacing after 2 or 3 years of daily use.
TheBrit said:
NiCad batteries work best when fully discharged before re-charging otherwise you get what is called the memory effect. If you are in the habit of topping up before being fully discharged the better 'remembers' how much you let it drain before charging it and then get's the idea somehow that this is what its capacity is and goes flat at the point that it 'expects' to be recharged.
NiMH batteries are much less prone to memory effect. They are the ones that need the 16 hour first charge then subsequent charges are shorter.
Li-Ion - lithium to its friends - are not supposed to suffer any memory effect at all. You are supposed to be able to top up as and when you want without any detrimental effects.
None of the above batteries will last forever and will need replacing after 2 or 3 years of daily use.
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Absolutely spot on!
These days batteries do not require dishcharging fully before recharging. Even if the person in the phone shop says "ensure you charge it for 12-14 hours before you use it", this doesn't matter - once the battery is fully charged, it stops charging itself anyway - even if you leave it plugged into a charger!
Same as what's being said already.
To add, it's even better to keep your lithium battery topped. Fully discharging them is actually bad for a lithium battery. Full discharge and heat is what's bad for a lithium battery.
For a nice reference, check this: http://electronics.howstuffworks.com/lithium-ion-battery.htm
(the life and death part is what might interest you)
On a more interesting note. A long long time ago I got a MDA Compact aka Qtek s100. And there was a lot of debate here on the forums about the initial charge. In the manual it was stated that you should charge it for like 12 hours or something the first time. Then people obviously also said that was bull, because it had a lithium battery.
But! As for WM2003 it didn't save it's whole registry etc on the ROM but in the RAM. Once the battery was dead, bang! hard reset right there.
So they included a little NiMH battery in the s100 that would keep the RAM 'alive'. And that was the reason it needed such a long first charge, for the NiMH cell.
And for some reason a lot of manufacturers take an 'old' manual text for the first charge of a battery. Although that doesn't happen that often anymore. Especially in the beginning a lot of instructions of how to use a lithium battery were just plain wrong. And they put NiMH or even NiCad instruction in there!
Edit, some instructions as found here (http://www.batteryuniversity.com/parttwo-34.htm). Talks about laptops, but it's the same nonetheless.
Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.
Batteries with fuel gauge (laptops) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.
Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.
Consider removing the battery from a laptop when running on fixed power. (Some laptop manufacturers are concerned about dust and moisture accumulating inside the battery casing.)
Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing dates. Do not buy old stock, even if sold at clearance prices.
If you have a spare lithium-ion battery, use one to the fullest and keep the other cool by placing it in the refrigerator. Do not freeze the battery. For best results, store the battery at 40% state-of-charge.
Click to expand...
Click to collapse
I've noticed many roms provide options to charge at a faster rate, many have by default now.
Just looking at CheckRom, I see that it states "(for AC: up to 1200mA, for USB: up to 900mA)". Is there any real downside to using these? Such as shortening battery life.
I have been wondering about this for awhile. Thanks.
I'm sure I read somewhere that it will only use the milliamp that is supported by the battery. Also if it charges faster it shouldn't be a problem since its using the correct power input
Sent from my GT-I9300 using xda premium
Faster charging equivalents more strain on the battery and thus a shorter life in terms of charge/discharge cycles.
Since the battery is replaceble, it may well be worth the few dollars to you to have it charge faster, but that's personal preference.
Quick-charging batteries leads to additional heat, I would thus not recommend it if you plan to leave it charging in a car in the summer
since that will cause even further strain. (It's very unlikely the battery could go in self-heat mode due to charging)
Actually NO, but charging with more than 1A which is stock/default will add more heat to your phone. Heat which is HOT not WARM will reduce battery life of rechargeable batteries.
Oh right, very neat. I plan to get one of those high capacity batteries (tad over twice of original) for $15.
Does anyone know if it can also reduce battery life leaving it on charge all night? I think it discontinues charging.
krisando said:
Oh right, very neat. I plan to get one of those high capacity batteries (tad over twice of original) for $15.
Does anyone know if it can also reduce battery life leaving it on charge all night? I think it discontinues charging.
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As every one said charging at higher rate will reduce battery life and also reduce back up time.
Secondly, leaving charger ON all night will not effect battery, because charging is cut off by internal circuit once battery is fully charged.
The battery is not lasting for more than 1:30 Hr SOT. I am thinking of changing to a new battery. I was curious if i can use a large battery size in s9 plus. Found some batteries which are 4000+ (Max i saw is 4800mah) on aliexpress. Anyone have any experience with aftermarket batteries.. Is the capacity of these are as advertised?
Get a recent manufactured OEM battery.
It's already got the largest battery the manufacturer deems safe.
On top of that how does a battery gain an extra almost 20% capacity in an already real tight space?
Tear apart a old Li bag cell and see how flimsy they are made.