Hi
Its been almost 1 year with HTC Elf. I have noticed for couple of months tht battery back has reduced by almost one day...I have reduced the brightness.
Any suggestions
Thanks
Depending on the usage you've been putting the device through, you may just need a battery replacement. Lithium-ion batteries only provide about 300-500 discharge/charge cycles.
Related
Hi there,
I have been the owner of a brand new M500 for just over 2 weeks now and generally I am very happy with it (although I haven't had chance to play with it too much yet). I am just a little concerned with the max battery charge...
After around 16 hours first charge I generally run it down below 1 hours worth of battery left before I put it on charge, always overnight (so getting around 6-7 hours on charge through power adapter not PC). However since the second charge (which informed me I had nearly 9 hours of battery life to look forward to) it has been steadily dropping by around 20 minute increments so that the last time it dropped just below 7 hours max charge...
So this got me to wondering:
A, is this normal?
B, should I expect this to level out at some point, and how many hours should I expect this to be about?
My usage of the PDA functions aren't great and so I generally get a good 2 days worth of use between charges (1 day if I listen to MP3s during the day).
I have disabled the Beam (IrDA and Bluetooth) and only activate them when I want to use them and I only have the screen on a medium brightness. I try to ensure that I don't leave programs running when I'm not using it... Is there much else I can do to increase battery life or should I be happy with what I am getting, as this is the first time I have had a Smartphone, I don't know what to expect...
Many thanks for any of your comments,
Dan
What are you using to tell you the remaining battery time? The standard battery app tells you remaining % of battery, any program which tells you the remaining time is estimating it based on this reading.
Most programs which do this use averaging techniques to find the best estimation of remaining time based on previous charging and discharging times. The reading on your remaining charge time will eventually level out after a few charges. The charge the battery holds hasn't changed, but the estimated time remaining based on that charge has.
Thanks for the reply, I was hoping that was what was happening...
Thanks for clarifying
Dan
Hi!
I have had my Tytn for roughly 2.5 years. This autumn/winter the battery time I could get out of my Tytn was really ridicilousley low, so I bought a new "non original" 1500 mAh battery. It got better but not much, I started to think that perhaps the battery time was never better than this.
The other day I skimmed through this forum about battery problems and found this little program for meassuring battery consumption. I have now had it on since I removed my phone from the charger this morning and now, 4 hours later I'm down to ~30% battery power and acbPowerMeter tells me that the phone has used 90 mAh all together.
I have made 1 shorter phone call and made a couple of synchs with turbo 3G during this period.
Does 90 mAh sound at all right? That would mean that the battery was crap to begin with....or is it possible that acbPowerMeter isn't giving me even "close to correct values"?
Does anyone have any comments or ideas around this issue?
Best Regards,
Olle
Don't know anything about your abcpowermeter. What I do know, is that when I've had a new battery, or when I flash a new ROM, I often have problems with low battery. I just run the battery down like three times in a row, and my battery always improves.
So before making any determinations or using a program, I always run the battery down.
I've got acbpowermeter on my phone, and I don't think it's much good to be honest. If I remember correctly, the last time I left it running, it severely drained my battery - not exactly what you want a power meter app to do.
I find it far more reliable by using BatteryStatus from chi-tai.info and just seeing what the momentary power usage is. (it sits on your Today screen). Yeah, it's not a comprehensive breakdown of your power usage over time, but it doesn't run the battery down like acbPowerMeter does
Like you though, I'm still curious as to what exactly my device consumes in terms of power over the course of a single charge, and I'm on the look out for a decent app which just ticks away in the background measuring power drain...
Hi!
Regardless of Acbpower I just bought a new HTC Original battery and now I have the "normal" battery life I was used to during the first year of my device. As it has allready been discussed in other threads: These non-original batteries are far from always a safe purchase...
Br, Olleman
I recommend Lion Batteries. I have had a great experience with their 3000mAh battery for over a year and a half. Use that 3G on my Hermes and music all the time -- serious user-- and the battery still last me over day. Mind you I am constantly on the internet and always using push email and other data-centric services.
As far as Battery Status, for general purposes is great as I find the more complicated the app the more drain on the system it is trying to read. A simple app that you can just keep an eye over a period of time I think works best.
As far as batteries I was concerned where to buy one. Since my brand new battery died over just a year. Mind you a tethered a lot and I think that tends to kill the battery life faster.
How often do you change your HD2 battery? when do you know you need to change it? sorry if this sounded silly!
Well, Ive had mine since november 09 and never changed it. Still holds a decent charge, probably not quite as much as when it was brand new but cetainly not a noticeable difference.
when to change batts.
Typically a li-ion battery will lose 20% of its capability after one year (even if you don't use it) A few things can influence the exact amount (keeping it always at 100% will speed up the loss, as will high temperatures)
If you really want to know exactly what the loss is.....
Fully charge a battery and remove it. Leave it a few hours or overnight and then use a voltmeter to see what the voltage is. This will tell you how much capacity it has lost.
4.18v -4.2v=100% (ie perfect battery)
4.10v = 87%
4.0v =75%
cottonpickers said:
Typically a li-ion battery will lose 20% of its capability after one year (even if you don't use it) A few things can influence the exact amount (keeping it always at 100% will speed up the loss, as will high temperatures)
If you really want to know exactly what the loss is.....
Fully charge a battery and remove it. Leave it a few hours or overnight and then use a voltmeter to see what the voltage is. This will tell you how much capacity it has lost.
4.18v -4.2v=100% (ie perfect battery)
4.10v = 87%
4.0v =75%
Click to expand...
Click to collapse
I have a an old magician I bought new 8 years ago & still works with original battery.
My touch pro is almost 3 years old & still works fine lasting 2 days on energy ROM with original battery & the same can be said for wifes old Diamond 2 Topaz.
Doing output test & using HTC battery test exe may help determine battery condition if battery is suspected faulty.
My conclusion is a genuine good battery should see over 2 to 3 years use without noticeable performance loss & have a serviceable life beyond 5yrs.
Modern devices such as HD2 which has a small battery & drains a lot of power so may lower the battery lifespan as you will be charging that tiny battery almost twice as often, also current battery material quality may have declined.
hi there!i am new to XDA. can anyone of you guys help me out with my battery problems.
I have a asus P320 windows phone . it shuts down itself when the power is still 70% . is there anyway to change the registry settings to prevent the auto shutdown due to low battery. i would'nt have bothered with this shutdown if the battery was old but i bought a brand new battery , and no matter what the ROM is it still switches off . I would really appreciate if someone could help me on this.
is there any way to change any of the registry values to disable the lowbattery warning and the autoshutdown.
The battery is not truly measured by "capacity". The capacity is derived from measurable data, mainly the voltage. The voltage for new batteries is very little depending on the load which is applied to battery. Over time (and charge cycles) however the chemistry in the battery is aging so that the load on the battery lets the voltage drop when load is applied. Load is anything like the CPU demand, lights on and so on.
So for your case it is highly probable that idle the battery shows 70% but when load is applied, the voltage drops below the shut off point and the device is off. There is no option to adjust this - it is hard-coded in the battery driver.
Have a look at my battery measurement thread linked from my signature to get some background and find a method to track this.
To give you a rough hint: fully charged, the device should be able to stay on with LCD light (fully lit) on for several hours. With what you report it should go off within less than 2 hours from my estimate.
tobbbie said:
The battery is not truly measured by "capacity". The capacity is derived from measurable data, mainly the voltage. The voltage for new batteries is very little depending on the load which is applied to battery. Over time (and charge cycles) however the chemistry in the battery is aging so that the load on the battery lets the voltage drop when load is applied. Load is anything like the CPU demand, lights on and so on.
So for your case it is highly probable that idle the battery shows 70% but when load is applied, the voltage drops below the shut off point and the device is off. There is no option to adjust this - it is hard-coded in the battery driver.
Have a look at my battery measurement thread linked from my signature to get some background and find a method to track this.
To give you a rough hint: fully charged, the device should be able to stay on with LCD light (fully lit) on for several hours. With what you report it should go off within less than 2 hours from my estimate.
Click to expand...
Click to collapse
Thank you for the quick reply. well, the battery does'nt last much time though . i tried to discharge the old battery (which i still have) to 0% and when i charge it for some time and switchoff the charger it shows some % of batter left and after sometime it shutsdown showing lowbattery warning.
I can understand this happening @ 5% or even 15%but @ 60%- 70% on a brand new battery is a bit much.
if only i could just prevent the autoshutdown, in the mean time i have to check on your battery measurement thread/
From my battery thread I have linked some info on battery chemistry. Bottom line is that LiIon batteries are aging from the day they are produced and the dependency on charge cycles or discharge depth is minimal (different to older type NiMH batteries). So even if you buy a "new" battery in the shop it may be 5 years old from its production date already.
My experience with after-market batteries (so non-original) is very bad. You almost never get good quality and usually old original batteries perform better. I have lots of batteries checked on the Typhoon/Hurricane/Tornado and several on Vox/Excalibur. Especially the true original branded like Sanyo, Celxpert or Samsung have sometimes exceptional performance. I have some of these that already have 5 years (of little to modest use) and still have their nominal capacity. Recently I bought an original packed battery for the Qtek 8310 (Celxpert) which should be 5 years old - and this one has its original capacity! On the other hand I have also bought cheap Chinese that have only 30% of the labeled capacity.
All
I have been suffering with poor battery life for many months now, I have tried all the obvious solutions, even going back to a fresh re flash with no other apps and still the same (i.e. barely a day with moderate usage).
Then it occurred to me that I used to get at least 2.0 or 1.5 days with moderate usage for the first 6 months.
I confirmed a while back my battery was no the bad batch.
Anyway finally I source a direct genuine replacement from Handtech for £10.
I swapped the battery (no other changes at all) and voila, I would say back to original expectation
Reflecting back, the battery charging and during use would get very warm (not a good sign) but there was no sign of battery swelling, etc...
With the new battery even after a long first charge the handset was completely cold.
interesting...
How long you used the original battery?
I know some Iphones that still last a day with single charge after 5 years of usage. So the battery still keeps the charge. My 3 year old Galaxy S2 still keeps the charge but not as good as new one. So at least Samsung batteries becomes weaker over the time significantly.
editable said:
interesting...
How long you used the original battery?
I know some Iphones that still last a day with single charge after 5 years of usage. So the battery still keeps the charge. My 3 year old Galaxy S2 still keeps the charge but not as good as new one. So at least Samsung batteries becomes weaker over the time significantly.
Click to expand...
Click to collapse
Original battery was barely 1 year old.
I don't overcharge and normally cycle it once every few months (complete discharge and charge).
I am now 20% down after 8 hrs, with the old battery it would probably be about 40% down.