yashsingh1/xdaforums huggingface dataset:
[Desire General] Laban:
Mine is not rooted. I didnt have this problem before the update.

I have some apps installed and a few widgets but nothing "advanced" like different launcher, heavy widgets. After the update I did a hard reset and didn't even backup my settings (have contacts and e-mail via Exchange server). The hard reset didn't help at all...
[Desire General] RiodaITA:
:( So I understand I'll be elect "the" volunteer :D

Maybe in the next days I'll try...
[Desire General] RiodaITA:
I used the phone till it automatically switched off, pulled out the battery for one minute, tryed to charge the phone when totally switched off and it charghed and stayed at 100% so I'm quite sure it's a ROM related problem.

You can see the next charge in the attached image (thanks to JuicePlotter)...
[Desire General] JohnSteveDoe:
Rooted, running MCR v17, unplugged 30 minutes ago, it's at 95%.
[Desire General] Ommadawn:
I don't know if this is a ROM issue at all. It's been a constant thing for me since I got my Desire in April, and it's a stock device. I do recall seeing somewhere that it might be an issue with the recharge cycle - once the battery is fully charged, it stops charging altogether so the phone begins to discharge again (even though it says its at 100%). I don't know how accurate this is, but I'd like to see more peoples' experiences with this.
[Desire General] aimache:
Having bought it in april, your device was most certainly already updated. I never noticed this issue before the OTA. Now I notice it every day ...

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[Desire General] RiodaITA:
Here we have another example of abnormal discharge.. note the speed of discharge from 100% to 90%. Two times in few hours.. Waiting official Froyo release to see if there are changes..

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[Desire General] Nit3m4re:
Same here. Since OTA my phone doesn't go past 96% charge 4/5 charges I do. So annoying but it doesn't really affect me much.
[Desire General] ch4os:
Just got my Desire a week ago and I have the exact same problem every morning.

100% when I check the phone, instant battery drop to 89-94% after unplugging.

Didn't touch the ROM, OTA 1.21 was preinstalled already.

When exactly was HTC planning on releasing Froyo? Today (23rd)?

Btw: Do we have to flash it then (which means: reinstalling all apps)?
[Desire General] gyro11:
i have tried this a couple of times and it didnt work for me. Still has almost instant discharge to about 90% each morning
[Desire General] AndiHelldriver:
Same with MCR 3.1

I have the same annoying problem:

charging the phone over night, pulling it from the plug and the charge drops down to 94% or less - juiceplotter shows me the same charts as poste here already several times. Today is my lucky day, I could start the day with real 100% :-)

This behaviour is also described in other forums and it also assumed that it didn't happen with the 1.15 ROM.

The next days, when I have a little more time (and willing), I will go back to the Stock 1.15.

@RiodaITA: did you perform already a downgrade?

rgds

Andi
[Desire General] VVV850:
Having the exact same problem. Usually when I remove the charger it drops to about 96%. But today it dropped to 90%. So it seems that it depends on what time you pull the plug.

Maybe adding a poll to see how many of us have this problem will help us get the big picture.
[Desire General] grazykid:
same here

I seem to be having the same issue with my desire.

Pays Rom 2.0
[Desire General] RiodaITA:
Sorry, didn't try to downgrade atm, I have no time to re-do a complete setup... I'm really quite sure that 1.15 ROM didn't have this problem so it's a waste of time imho. I think I'll wait to upgrade to froyo... the rooted one obiouvsly :D

I just wanto to point out another thread where other guys are discussing the same thing:

http://xdaforums.com/showthread.php?t=699232

PS: Italian customer support really sucks... can someone try to contact his own country support to submit the issue?
[Desire General] andycted:
Same here, didn't notice the problem until I installed a new 1.21 rom. Never got it under 95% though
[Desire General] atconc:
I used to have this problem - the following steps worked for me which makes me think this is a software issue. You need to be rooted to do this though.

Use the phone until it runs out of battery and shuts itself down

Leave phone off and fully charge via AC (I did this over night but at least wait until the light goes green)

Boot into a custom recovery (I used Koush's fake flash http://xdaforums.com/showthread.php?t=698403)

Find the option to wipe battery usage stats (don't have it in front of me but think it was in the advanced settings)

Since doing this my desire always shows fully charged in the morning and the battery percentages drops fairly consistently (although checking twitter, facebook and a few websites in the morning usually drops me at least 4%)

Hope this is helpful
[Desire General] andycted:
I'm going to try this on the fly since I have a spare battery with me.

Maybe it's just the wipe that works
[Desire General] RiodaITA:
I already tried wiping the battery usage stats and it didn't work (one of the first things I did when I noticed the problem). Maybe I wiped when the battery was not fully charged. Now my phone off and charging, let's see what happens.
[Desire General] andycted:
Done the trick, didn't work, this morning it's at 97 as soon as I took it off
[Desire General] RiodaITA:
Didn't work for me....issue still here. Can somebody call the support center and submit the problem? I'm curious about the answer... Italian customer care suggested me to try with another battery (LOL) or send the device for repair...(lolling again)... It seems like they don't know what I'm talking about... The competence level seems to be very poor here... :(
[Desire General] Jazd71:
I've experienced similar issues only when I've used a battery widget, strangely when I un-installed the widget its been fine. :confused:
[Desire General] nelimbg:
I'm using battery graph and dont have this issue. For test i've installed juice and than this happened while charging and appeared on both juice and batt. graph. After i removed juice no discharge while charging anymore. So juice is doing that not tha rom itself

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[Desire General] ruleamsterdam:
I think the "issue" you're having is quite simply explained. Actually, there isn't really an issue.

You're battery stops charging when it reaches 100% and it will only resume charging if it gets below 94-96% or so, don't know the exact percentage. This is a safety built in and the Li-ion battery doesn't use trickle charge to maintain 100% (that could actually damage the battery)

So....you plug your phone in when going to bed, it reaches 100% and stops charging. By the time you wake up it has been running on battery for a couple of hours already and this shows when you unplug it. This is why it doesn't always drop to the exact same % and when you'd charge it during daytime and unplug when it reaches 100% i'tll stay at 100% and it WON'T drop.

That last one is easy to try and prove you're not having any issue at all.

Charge it while at work or something and unplug when it hits 100%
[Desire General] larbac:
I have the same issue on my phone. And with Juice I manage to understand the problem/feature.

Anyway, i would like to ask if everyone with this complain noticed that the discharge happens 5h after the 100% have been reach. This seems to be constant on my phone. Same with you?
[Desire General] KrewCial:
I was thinking the same. In fact, i was just about to post simething similar. Normally I'm around my phone when it hits 100% battery and I immediately unplug it. In this case, the battery remains at 100%. However, after I charge it overnight and unplug it, it drops to somewhere between 90%-100%. Therefore a logical conclusion would be something along the lines of what is posted above.

Though I have never had this issue before on other WM HTC phones. This is my first android HTC device, is it the same for other devices from HTC or android in general perhaps?
[Desire General] andycted:
This doesn't explain why this doesn't happen in my other li-ion battery phone and why it didn't happen before the update, at least to me.

Anyway this morning I was checking battery history and I've noticed under "sensors" the voice "android system" having 100% of the time. Tried disabling auto rotate, auto brightness, rebooted, still the same, keeps at full time.

Anybody can verify if they have the same ?
[Desire General] ruleamsterdam:
Safety feature in the newer software maybe? Makes sense because it does actually hurt a Li-ion battery to keep being charged when it's almost at it's max.

Short charges are not a problem though, it just doesn't like to be in the top couple % all too much.
[Desire General] andycted:
Could someone check that battery history for the sensor part ?

It might be as you said, it's a bit strange though that you almost always see it going down after you unplug it vs having already those few percent lost...

I'm actually also having the problem that sometimes it takes forever to charge but that might be down to the cradle which is also charging the spare battery. (but it does take more than 8 hours at times). Might also be the crappy, too cheap, cradle
[Desire General] andycted:
There must be something more to it, charging the phone overnight while on or off makes a huge difference in battery life all day long...
[Desire General] Xinot:
I have/had this same problem, and uninstalled JuiceDefender. Didn't let it to charge very long, but unplugged it from charger when it was full, and now it seems that power drain is very smooth compared to that what it was before. Before it drop very fast from 100% to 90% or even 80% (about 15-20% 1h). Now it's going very normally in lite use, about 10% drop in 1h.

It seems like there really is some automatic discharge system. As i said, i had problems and it seems like it did 10% automatic quick discharge + normal 5-10% discharge both so thats why it did drop so fast. Maybe this battery savior option just "hang" or something even if you unplug phone from charger.

As you can see, english is not my native language... :D
[Desire General] RiodaITA:
I just uninstalled JuicePlotter and installed BatteryGraph, nothing changed and the issue is still here.. :(

Furthermore this issue seems to be present also in a "just wiped" device, try to search in previous posts.
[Desire General] RiodaITA:
I can accept this is a normal behaviour, a method to preserve the battery integrity but...

1) Is this a new feature introduced with the last update? Nobody noticed this issue with the previous version of ROM. Is this the first time ever in the world this technology has been adopted? I have several devices and no one has the same behaviour.

2) If you look the graph I posted (post 24) you can see the percentage drops instantly from 100% to 91%. I suppose that once the battery is full and the charger is "stopped", the battery should drain more slowly, 10% in one second seems not to be normal to me and yes, I'm sure there is no applications or bugs that drain my battery.

3) Why EVERY other device I own (laptops, many other cell phones, all with LiION technology batteries) don't use this "trick" to preserve the battery health? I'd prefer to spend 15 euros for a spare battery when the original one get damaged than start almost every day with a partially charged phone.

4) Why the official HTC support center can not even understand what I'm talking about and say to me to replace the battery or send back the device for repair? If it is a new ROM feature they should be informed! And they have to inform the customers!

5) I use my device eavily during the day, I have to charge it every night and sometimes I have to use it carefully to make it last till the end of the day. This 10% is important for me and I want that when I charge my phone, it is charghed to 100%, not 1% less. I don't want to be "lucky" and unplug the charger just before the battery suddently drops to 90% or after it charged again to 100%.

6) If a prolonged charge can spoil a battery, once the charge cycle is completed it shoud be smarter to "bypass" the battery, leaving it fully charged, and use the charger's energy only to feed the device. Just my two cents... I don't know if it shoud be done by the HTC developers...

We will see what happens with the official release of Froyo...
[Desire General] patasenko:
Indeed this issue is stressful, have been using My desire for over a month now. Had 1.15 rom on it, no problem, then proximity sensor was broken and send it for a repair. What happened is that they fixed the problem but also updated the rom to 1.21 and what do you know the problem of battery appeared.
[Desire General] andycted:
Whatever people try to say, this is not a feature, or a rather badly implemented one...

However during this testing I indeed verified that you get full ac recharging only with stock charger/cable and not with aftermarket cradles
[Desire General] endebe:
never had this issue on 1.21. bought second htc-battery and after second full-charge i had only 94% on new one after unplugging cable. let batt. go to 0% and charged it with external charger (see pic.) overnight. then back in desire batt. was on 100%. after that batt. was always charged to full and remained full even on charging with original charger. problem solved.

interesting that this happened only with the new second battery.
[Desire General] jamfitz86:
They do, they just dont tell you they do. Either that or they kill their battery early which is what my laptops always do because I leave them plugged in all the time.

Its just what li-ion batteries do. Hybrid cars do it too. Li-ion batteries have the longest shelf life at 60%SOC.

I'm glad you'd rather buy a new battery prematurely, but I would rather it managed itself and lasted as long as possible.

Also I'll bet that the software recording the SOC is consuming power.

Plug it in a night and goto sleep. Get up in the morning and unplug it. If you're really struggling with battery life buy a spare or charge it while your at work on USB. Other than that - Deal with it....

JAmes.
[Desire General] larbac:
I think this will be again one of those issues that its hard to understand why... Alot of different solutions have worked with different people and all the same phone.. If this is a feature then all phones should Have it.

1- ROM - I had the latest update on my previous Desire and no issue. This Desire has the Issue. My collegue have desire with same updates has I have and not problem.

2- JuiceDefender, Juice Plotter, other battery apps. Seems quite odd as I didnt have any apps excpet for Battery Lite and I also have the problem. My collegue with Battery Life does not have it.

3- Ac adapter-cable. This could be a reason. I haven´t test it. I use a AC Adapter TC B250 which is not the one that was shipped to all europe by HTC. But I believe not everyone on this thread has this AC adapter. Some of you are using the TC P300 which is the one shipped with some headsets.

Can anyone confirm (using juiceplotter for example) when does the battery starts draining to 90%? I get alwasy 5h after it achieved the 100%. Then in 30min it will go down to 90% and thenstart the charging cycle again.

Another Question. If how do you screenshoot applications on your phone? I would like to show some screenshots but I dont know how..
[Desire General] larbac:
Would you try to leave the phone connected to the AC adapter for around 4h after it gets to 100% and check if it discharges? This has been constant behaviour on mine. 4h after it gets 100% it will discharge to 90% then get up to 100%, another 4h always connected and discharge...
[Desire General] RiodaITA:
2) I'm using Battery Lite, maybe this is the problem?

3) I use the original HTC charger/cable. The discharge for me appens about every 4 hours but it's not a standard. Sometimes happened after 2 hours, sometimes after 5...

For screenshot I used "Drocap2 for root users"
[Desire General] moran679:
I also experience that issue. Although, after disconnecting the charger and restarting the phone (after it changes to 90-something percent, while still connected to a power source!), it miraculously shows 100% again!
[Desire General] wollyka:
same issue here.. but if i charged at day and removed the charger when it reaches 100% it remains at 100%.. it only happens overnight for me it seems
[Desire General] larbac:
Yep, this is the right thread for your issue. You notice this during night cause its when you leave the phone on the power adapter longer... If you install juice plotter you can find a trend
[Desire General] larbac:
I also use the original from HTC.. just that HTC has 2 kinds of AC adapter depending on the zone the headsets are shipped (this is HTC explanation).

I have tried with TC B250 and with the common TC P300 and the same behaviour.

Next I will try without Apps... and then swapping bateries between headsets of a collegue of mine that never noticed the issue on his phone..

Im taking a bit longe cus my phone is actually take 2 almost 3 days to drain the battery from 100 to 14%.
[Desire General] jawis:
I have a Desire bought in June and I also have this battery charging problem.

I rarely get a 100% full charge when I leave the phone to charge overnight using the supplied charger and cable. It is quite common to see the battery level @ 90-92%.

I do get a full charge if I charge with the phone turned off, but this is not an ideal solution for me.

When I reach work I tend to charge the phone through the usb on my laptop and it charges to 100% without problems and keeps the charge as long as phone is still plugged in via usb.

I will also get a 100% charge from my charger in the car that does not discharge at anytime when it is plugged in either.

In the morning during breakfast I like to browse google reader to catch up on the news with the Desire. By the time I leave for work my battery may drop below 80%. I doubt it would be so low if I started off with a 100% charge.

I certainly didn't have this problem with my previous HTC Pro2.

A little bit annoyed with this.
[Desire General] samsanchez88:
Hey guys, i wanted to bring this subject back up to find out if anybody has found a solution???

If this is really a "feature" to protect the battery it doesn't explin why this feature doen't work when plugged into the PC or the car charger.

I'ts really anoying to start the day with aprox 90% charge!!! I'd rather buy a new battery every year.
[Desire General] RiodaITA:
Bad news.... I've tried the leaked froyo 2.2 with HTC sense (DJ DROID from udK) and the "amazing" battery-life-saver feature is still present... :(

So I think that also the official ROM will have it too.

I know this is not the first time I suggest somebody to call the HTC support center to submit the problem and share the official answer. I did it, you can read what they told me if you read back in the thread.

I'm starting to think we will have to live with this feature...
[Desire General] djoni1980:
Someone suggested this at one of rom threads earlier, and it worked for me:

-Turn your phone off

-Charge it until battery is full

I did that with AdamG's official Froyo sense rom last night.

Turned phone on this morning with 100%, and with low usage during the day, battery is 83% right now, which is satisfying until new rom appears.
[Desire General] RiodaITA:
I'm sorry but this is not a solution because:

1) Some of us can't turn completely off his device (for example I use it to wake me up and for working reasons I have to be reachable even during the night..)

2) Even if you turn the phone off and charge it untill the battery is full, the next time you charge it while it is not turned off, the problem reappears so.... this is not a solution...

Last observation:

Statements like "...with low battery usage during day" has no sense for me as you don't specify how do you use your device, how many calls, if you use wifi or hsdpa traffic, how many, if you use gps or any other heavy application for example,etc... Anyway once the battery in fully charged it should have the same duration despite the way you charged it.

I've read somewhere that somebody noticed a different method froyo use to calculate the battery percentage with slower drop from 100% to 50% that become even faster going from 50% to 0%.

I can say I'm happy with this device but this battery problem is very annoing for me... I would know if other HTC+android devices has the same issue...
[Desire General] jorgenask:
same battery issue here, although i didn't notice before I read it here and installed a battery widget with percentage.

So not that big issue for me I think.

Anyone maybe found a solution to this ? other then charging the phone while power is off.?
[Desire General] afrsa:
I have the same issue... if I charge it during the night, then battery drops to 91%... if I unplug it soon after it reaches 100%, battery discharges normaly.

Well, let's see if we have some answer from HTC about this...

;)
[Desire General] jorgenask:
anyone tried this with other chargers then the one that comes with the phone ? im thinking of trying with my old touch hd charger
[Desire General] Lord_Morgoth:
I also came across this "bug". I've contacted HTC customer support and here are some HTC's Golden Thoughts on this i

1st answer:

3nd answer

I trust that HTCs developers came across this topic on XDA ;)
[Desire General] jorgenask:
HTC almost starting to sound like Apple !
[Desire General] siliconaddict:
Same issue here :confused:, Desire with stock 2.1 ROM.
[Desire General] Lord_Morgoth:
Im really frustrated with the support! C'mon! How can somebody advise the client to buy himself a time-plug. Im really furios with the response that i received.

Ehh..

Sent from my HTC Desire
[Desire General] jorgenask:
but it does look like a software bug based on what several people has stated that there was no bug before a certaion firmware upgrade.

so it should be possible to include a fix for this in the 2.2 or rather sooner than that maybe
[Desire General] ediflyer:
Unfortunately my concern is that the actual HTC developers have no clue as to what problems we as users as experiencing as the 'support centre' just seem to try and deny any and all problems and come up with ludicrous suggestions like this. I really really hope the devs come on XDA but if they don't they probably don't know the half of the problems!
[Desire General] berre:
I've noticed that my desire sometimes stops charging at 90%... when i replug the power cable it continues to charge to 100%... strange
[Desire General] jorgenask:
bump :) want to keep this one alive ..
[Desire General] Tenhi:
Same problem here, after upgrading radio to newest (leaked) one...
[Desire General] paprkut:
Suffering from the same problem.

Tryed various froyo Roms and richardtrips rom worked good, it stayed at 100% but the problem with that rom was my battery went from 45% to 0% overnight and that's with my mugan3200. So it must be fixable. Richardtrip fixed it minus the terrible battery life I experienced.
[Desire General] doggie123:
Tried it: first fully discharged, then fully charged with HTC charger, then normal daily use. In the evening: charge on USB until 100%. Dropped to 91% within a minute after disconnecting it. So for me this was an unfortunate waste of time...
[Desire General] Daelyn:
It's not a HW fault. It's a setting in kernel that affects this.

On DeFrost 2.2c my Desire will charge to 100% and stay there trickle-charging until reboot/unplug. On other versions I could experience charge dropping to 90% before charging it up again.

Having it trickle-charge continously while at 100% and connected is not a good on the other hand. It wears out the battery quicker than having it charge till 100% then drop off.

I would like it to charge till 100%, then stop charging but use the charger as the soul power source rather than the battery. When I come around to compiling my own kernels I'll try to implement that.

EDIT:

BTW, why it quickly discharges from 100% to 90% is unknown to me. Probably something really silly