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Poor Anker 1900 performance?

I've got the anker 1900 but I'm dissatisfied. It lasts as long as the stock 1580 or maybe less...
I dunno whether it's bad luck or not, but something is wrong.
1) In battery widget the reported mAh is 1580, isn't it supposed to be auto detected correctly 1900?
2) I've wiped batterystats, and recharged it fully, but i.e. today the phone lasted only from 10.00 till now. Do I have to give it more recharghing cycles before to judge it?
What do you think?

zooster said:
I've got the anker 1900 but I'm dissatisfied. It lasts as long as the stock 1580 or maybe less...
I dunno whether it's bad luck or not, but something is wrong.
1) In battery widget the reported mAh is 1580, isn't it supposed to be auto detected correctly 1900?
2) I've wiped batterystats, and recharged it fully, but i.e. today the phone lasted only from 10.00 till now. Do I have to give it more recharghing cycles before to judge it?
What do you think?
Click to expand...
Click to collapse
Depends on usage, the way I use it - that would be a good amount of capacity.

Did u do 3 full discharge and charge.
Im on my 2nd cycle and my Anker is rockin'..
Sent from my Sensation using Tapatalk 2

Where did you buy it from?
Sent From My Sexy Sensation.

I bought iy on ebay from an irish seller. And I've still not completed 3 full cycles.
But what about the reported mah?
Did you have to set manually the mah as well?
And I'm experiencing strange behavior with the reported left charge. It stayes at 100% long, and then it start lowering the % much faster.

zooster said:
I bought iy on ebay from an irish seller. And I've still not completed 3 full cycles.
But what about the reported mah?
Did you have to set manually the mah as well?
And I'm experiencing strange behavior with the reported left charge. It stayes at 100% long, and then it start lowering the % much faster.
Click to expand...
Click to collapse
Might be a faulty battery perhaps you have warranty ? I bough it from ebay : laptopmate_usa hes legit and gives 1 year warranty ! Mine stays on 100% long time but starts draining fast until 92 then becomes normal..
Sent From My Sexy Sensation.

Battery monitor widget reports 1580mAh and I have to overwrite the data to 1900, does it happen to you too? Il this normal?

With battery monitor widget, if you go in to "Calibration", then hit "Change", you can enter a different capacity. You don't have to name the battery, although you can if you want. Then the stats should change.
*edit*
I have used battery monitor widget in the past, and had to manually change it to 1900. Although I have not used it lately and don't know if it should automatically adjust the calibration.

IHaggardI said:
With battery monitor widget, if you go in to "Calibration", then hit "Change", you can enter a different capacity. You don't have to name the battery, although you can if you want. Then the stats should change.
*edit*
I have used battery monitor widget in the past, and had to manually change it to 1900. Although I have not used it lately and don't know if it should automatically adjust the calibration.
Click to expand...
Click to collapse
I have the anker 1900 too and to quickly see if battery is actually registering as larger than 1500 (ie your battery stats have been adjusted due to calibration or wipe). Charge your sensation to 100% (green light), power down, and if your charging while powered down for my then 5 min or so its still at 1500. (orange light on)
I know it seems obvious but my experience is that my anker battery will always charge full if turned off no matter what rom I'm running.
if the rom isn't reading the battery i'll turn on my sensation and i'll be at 100% charge for a few hours Xp

Dock charging after V9.4.5.26 firmware update

Anyone else seem to have dock to tablet charging change in behavior after the V9.4.5.26 firmware update?
Before the current firmware I recall the dock topping off my tablet battery after the Infinity was left idle for a while. Now it seems the dock at best is only slowing the tablet's battery drain. If I reboot the tablet the dock seems to make more progress towards charging the tablet battery closer to full.
I don't quite know if I'm misremembering the old behavior, or this was a firmware change, or I should be concerned about a faulty dock to tablet connection.

sandymacjr said:
Anyone else seem to have dock to tablet charging change in behavior after the V9.4.5.26 firmware update?
Before the current firmware I recall the dock topping off my tablet battery after the Infinity was left idle for a while. Now it seems the dock at best is only slowing the tablet's battery drain. If I reboot the tablet the dock seems to make more progress towards charging the tablet battery closer to full.
I don't quite know if I'm misremembering the old behavior, or this was a firmware change, or I should be concerned about a faulty dock to tablet connection.
Click to expand...
Click to collapse
Mine beheaves just like yours, but I'm still on .22
When the tablet's battery is empty and I plug in the Dock it loads the tablet
but when I put the tablet with the dock together when both of them are about 70 % then the dock isn't loading the tablet
---------- Post added at 05:07 PM ---------- Previous post was at 04:17 PM ----------
I just found out that the dock has started to charge the tablet when the tablet's battery was going under about 60%

Same behavior here
no reason dock should have charge if tablet isn't full. charge in dock is pointless.

My unreliable understanding is a 0% empty or 100% full lithium battery will have a shorter usable life span than a lithium battery maintained around 75%. I can understand that trade off for the dock battery if that is what is happening.
gottahavit said:
no reason dock should have charge if tablet isn't full. charge in dock is pointless.
Click to expand...
Click to collapse

Last night I noticed that the tablet says "charging" while in the dock, and the dock depletes. It seemed pretty slow and the dock seemed to drain reasonably quickly. From what I've read, its supposed to drain both at a slower rate.
Personally, I like the idea to have the dock charge the tablet. It just makes more sense.

Mine was still not charging the tablet at 76%, now I docked it under 66% and it's charging, so I believe it goes on somewhere around 70. I think it was somewhat sooner under .21 and .22, but after installing SwiftKey (crypto-ad) I'm rarely using the dock when not using the shell (but hey, I'm on holiday!).
Edit: Stopped charging at 90% (the dock is 60% now, so ~25:40 ratio, btw), seems reasonable.

sandymacjr said:
My unreliable understanding is a 0% empty or 100% full lithium battery will have a shorter usable life span than a lithium battery maintained around 75%. I can understand that trade off for the dock battery if that is what is happening.
Click to expand...
Click to collapse
Then no charger should ever charge past 75 %. Now if you want to argue not depleting the dock past 10% i would buy it.

sandymacjr said:
My unreliable understanding is a 0% empty or 100% full lithium battery will have a shorter usable life span than a lithium battery maintained around 75%. I can understand that trade off for the dock battery if that is what is happening.
Click to expand...
Click to collapse
It does make sense, switching charging off and letting the battery drain partly allows the battery in the tablet to have a longer life span. It usually let's it drop 20% or so and then charges it for a certain amount. If you keep charging from 90% to 100% over and over, it depletes the life span of the tablet's battery.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app

KilerG said:
It does make sense, switching charging off and letting the battery drain partly allows the battery in the tablet to have a longer life span. It usually let's it drop 20% or so and then charges it for a certain amount. If you keep charging from 90% to 100% over and over, it depletes the life span of the tablet's battery.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Click to expand...
Click to collapse
With Lithium Ion though, that shouldn't be an issue from what I understand. NiCad's, and to a MUCH lesser degre NiMh's will get that memory effect, but Li-ion's are immune to it, in fact they do better when kept charged up.

californiarailroader said:
With Lithium Ion though, that shouldn't be an issue from what I understand. NiCad's, and to a MUCH lesser degre NiMh's will get that memory effect, but Li-ion's are immune to it, in fact they do better when kept charged up.
Click to expand...
Click to collapse
That is true, Li-Ions are much better off staying between 40 to 80% and don't have the dreaded memory effect of NiCd and NiMH. However, when you get close to 100% when charging the voltage is also very high, which can shorten the lifetime of the battery in the long run. That's also what KilerG is saying.
It's better for the battery to just let it discharge a bit, then charge it up again. Maintenance charging it at 100% will require a lot of juice from the dock when the tablet is in use. The charge efficiency is greatly lowered when above ~80% since you need to continue increasing the voltage, but decrease the current to avoid overheating and damaging it.
My dock is currently at 78% battery while the tablet is at 77%. It's been on battery power for about 2,5 days now, I've only used it for a short time lately as I've been busy with other things.
Last time I took it off AC and it was more actively used, the dock depleted more quickly while the tablet was being topped off by the dock every now and then. Gives the tablet a lot longer usage, although you could end up with an empty dock while the tablet is still running. That's fine with me, the dock isn't much use without the tablet.
Edit: Actually, the battery indicator wasn't updating it seems. I undocked and docked again and the numbers went from 78% and 77% (dock and tablet) to 63% and 85%. Not sure why the battery status isn't updating properly. Might just be a one-time thing.

From the Asus forum:
http://www.transformerforums.com/fo...attery-related-matters-transformer-range.html
Excerpt:
TF201/TF300/TF700
* The charger charges the docked combo all together.
* When fully charged, the tablet uses the charge first, then the dock charges the tablet. The idea being that the dock battery will be depleted while maintaining the tablet battery. See below...
The way the combo works is that the dock does not charge the tablet continuously. I believe the percentages are along the following lines..
Dock 100%
Tablet 100%
Tablet uses charge until the level is around 70%. At this point the dock will recharge the tablet back up to around 90%, if the tablet is not being used.
If the tablet is being used, then the dock "powers" the tablet, balancing the charge rate with a direct bias to ensure that the dock will eventually drop to 3-5% with the tablet at around 90%.
The dock shouldn't allow itself to become any more discharged than 3-5% & neither should the tablet. Android will warn you when the tablet drops to 14%.
The dock will still continue to function until the tablet shuts off.
----------------------------
However, this is not my experience, which is why I was researching it in the first place. Dock charging behavior is inconsistent. I started seeing that the dock was no longer fully charging the pad w/o a cold boot recently (I'm still on ICS, rooted). Then it would develop the problem again after a short time, even when plugged into AC. Right now I'm plugged into AC. At start my dock had no charge and the tablet had about 60%. The AC charged the dock and the dock passed charge to the tablet until the tablet had 100% charge - correct behavior, I believe, since this is what it did when brand new (it's still quite new). Many have posted about the dock not charging the pad over time. I think there's a hardware issue of some kind, or system software problem since it temporarily will correct after a cold reboot. Or maybe there's a software conflict. I've been uninstalling stuff to free memory.

Einride said:
Edit: Actually, the battery indicator wasn't updating it seems. I undocked and docked again and the numbers went from 78% and 77% (dock and tablet) to 63% and 85%. Not sure why the battery status isn't updating properly. Might just be a one-time thing.
Click to expand...
Click to collapse
I'm having this problem, too. After charging both batteries to 100%, I unplugged from AC, and I've been using the pad for a couple of hours. The battery indicators still say 100%. I think this may be a hardware problem (or an API problem) because Dual Battery Widget reports the same. Undocking and redocking did not help. I suspect only a cold reboot will help. Perhaps my prior problem was a battery indicator problem, and not a charging problem, as it seemed.

Dock Battery Draining

Hi Guys,
I remember reading a post about this before but can't bloody well find it
With my tablet docked, they keyboard battery is draining much faster than my tablet resulting in a useless dock fairly quickly i.e. 0% in dock vs 80% in tablet. This seems quite a gap - I'm running stock, not rooted. Is there anything I can do to improve this? I don't remember the charge gap being so vast in my first TF700.
Any advice/suggestions are most welcome.
Thanks.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app

Been discussed before. Dock still operates at 0%, no need to keep a charge in there. It acts as the sacrificial battery, making the tablet use that power first, so if you so choose, you can continue using the tablet w/o dock or with dock and get the maximum battery life both ways.

Thanks Nick, I thought I noticed my keyboard wasn't working before when at 0% but will give it another whirl tonight. If it does work then bravo on Asus

i recently bought the dock and i also find the battery drain rather strange. i always turn off wifi over night and the battery of the tablet usually stays exactly the same, e.g. if i fully load the tablet before going to bed, i have like 99% in the morning without any drain.
yesterday i went to bed with dock 80% and tablet 85% and wifi off. today i find the dock left with only 40% and the tablet with 82%? is this normal? i guess i have to take them apart all the time over night otherwise it just drains too much

Definitely is not normal - I leave mine docked overnight with wifi *on* and I only get a percentage or two drain...
To start with, 'd look (with CPU Spy) to make sure you tablet is deep-sleeping properly.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

That's odd. Maybe some process kept running overnight.
Check that the following are set:
- GPS to OFF
- IPS+ OFF (set it to IPS mode. + drains 10% or some overnight, even when off.)
- Mode to Power Saving!
- Shut down all active processes (taskmanager has this convenient one click clean.)
- Check that media players have shut down properly in the Settings/Apps/Running apps menu. Also make sure they're not still cached (VLC tends to do that...)

I think that this is normal behavior. I notice that after using the device for a while, when I shut it off the dock battery actually charges the tablet battery. The charge light on the tablet even indicates that this is the case. I believe that is by design.

Dub Tech said:
Hi Guys,
I remember reading a post about this before but can't bloody well find it
With my tablet docked, they keyboard battery is draining much faster than my tablet resulting in a useless dock fairly quickly i.e. 0% in dock vs 80% in tablet. This seems quite a gap - I'm running stock, not rooted. Is there anything I can do to improve this? I don't remember the charge gap being so vast in my first TF700.
Any advice/suggestions are most welcome.
Thanks.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Click to expand...
Click to collapse
The charge light is indicating the tablet is (primarily) running off the dock battery. EDIT: although this is in essence a correct statement, I have paid more attention to it and noticed the dock does indeed charge the tablet (when not in use) -- it's a few percents, but nonetheless, it charges. Mea culpa..
The capacity of the tablet and dock batteries is different, so discharging under load will differ as well. I guess the behavior you are seeing is by design, and, to some extent preferable to the situation I have had since the beginning: my tablet depletes faster than the dock, at least initially, and that was what most of the early adopters were seeing, as well. This of course led to some discussion.
The behavior we noticed seemed somewhat counterintuitive, since it meant we would have less battery capacity on the tablet if we would choose to undock it -- as opposed to your situation, where you have as much battery capacity left on the tablet as possible when you choose to 'travel light'. I'd prefer it that way. ; )
So, the dock depleting significantly faster is nothing unusual nor anything to worry about. I do have to concede, though, that my battery drain is far less than some in here report -- it has been going for three and a half days with moderate use now. (That's OK, I guess, given the fact that I currently am in nightshifts and do not have to time to tinker as much. Even when I *am* tinkering, though, the batteries routinely carry me over two days, easily.)

My dock and tablet have weird battery usage.
So my problem is really weird I think, but maybe you guys can confirm or offer any fixes. I have tried charging the tablet and dock assembled through the dock port and gotten both batteries to 100%, but then while docked, the tablet's battery drains faster and the dock;s remains at 100%. As the tablet's battery gets to around 70%, the dock's will start to deplete but very slowly. The dock will only go to 70%, and the tablet will drain completely to 1% and then shut off even though the dock still has 70%. I then undocked the tablet and just charged the tablet back to 100% without doing any charging to the dock. After docking the tablet, it shows the tablet at 100% and then the dock at 70%. This time the tablet drains to 1% and then shuts off with the dock still at 50%. What's going on here or is it normal or is there a setting that I'm missing? I thought the dock was supposed to extend the tablet's battery life time??

[Q] Strange Battery voltage reading

I am getting strange battery voltage readings while the battery is fully charged . Ideally the peak voltage should not cross 4.2 volts for Li-ion batteries ,IMHO . Also I saw the Moto G review on Anandtech where the battery voltage is given as 3.8 V . But my battery reads a voltage of more than 4.3 volts . So I'm a bit worried about the long term reliability of this battery or my battery in particular . Has any one else checked this on their Moto G . You can see this info by using the secret dial code *#*#4636#*#* ( Lots of other interesting stuff under this menu )
I have a dual SIM variant of this phone .

vkk178 said:
I am getting strange battery voltage readings while the battery is fully charged . Ideally the peak voltage should not cross 4.2 volts for Li-ion batteries ,IMHO . Also I saw the Moto G review on Anandtech where the battery voltage is given as 3.8 V . But my battery reads a voltage of more than 4.3 volts . So I'm a bit worried about the long term reliability of this battery or my battery in particular . Has any one else checked this on their Moto G . You can see this info by using the secret dial code *#*#4636#*#* ( Lots of other interesting stuff under this menu )
I have a dual SIM variant of this phone .
Click to expand...
Click to collapse
I don't think it's an issue, mine peaks at 4.325 as it approaches full charge (it's above 4.2 from about 80% up when charging), it will then 'relax' to 4.194 once at 100% (even if still plugged). Other devices I own do similar. 3.8v is the nominal ideal voltage when the battery is least stressed (about 55% capacity) and perfect for long time battery storage.
If you wanted to be utterly anal about preserving your battery for eternity the strategy is never let it discharge below about 30% and never let it charge above around 70%. Lions will last for years and years and tens of thousands of charge cycles in those circumstances with no loss in capacity.

neu - smurph said:
I don't think it's an issue, mine peaks at 4.325 as it approaches full charge (it's above 4.2 from about 80% up when charging), it will then 'relax' to 4.194 once at 100% (even if still plugged). Other devices I own do similar. 3.8v is the nominal ideal voltage when the battery is least stressed (about 55% capacity) and perfect for long time battery storage.
If you wanted to be utterly anal about preserving your battery for eternity the strategy is never let it discharge below about 30% and never let it charge above around 70%. Lions will last for years and years and tens of thousands of charge cycles in those circumstances with no loss in capacity.
Click to expand...
Click to collapse
I own another droid device and the removable battery is rated 4.2 V 1500 mah. During charging it peaks to slightly under 4.2 V and reaches about 3.8 V at about 50 % .So it is safely under the 4.2 voltage limit. . Also many articles on battery university talk about 4.2 V being the peak . Hence the query
Is this the same observed by other Moto G owners ?

Mines also 4.3V at or near fully charged.
Sent from my XT1032 using Tapatalk

Maybe Its the moto g's secret of extra long battery life.....dangerously overcharging enabled by default (Also called bump charging)
Bump charging is known to destroy battery life
And since battery is internal...more profits for moto when people come to get them replaced WIN WIN!!

Hey I guess some users have had this phone for a week . Can some onecheck and post the peak battery voltage ? Mine has reduced from 4.33 to about 4.25 .Also looks like the battery life has reduced a bit
Also how does one reset the battery calibration . Is it by keeping the power button pressed and letting reboot twice?

Sorry for 3 months old bump, but I've got a response from Motorola and saw this thread.
X: Hi, my name is X. How may I help you?
(unknown): Hello, my name is [Me]. I want to ask you a question about Moto G.
X: Hello, [Me]. I will be more than happy to assist you on this.
(unknown): I used CPU-Z to look at a few details about Moto G's hardware and noticed that the battery voltage is 4.3V when fully charged. Is this normal?
(unknown): I've read on the internet that Li-Ion batteries shouldn't exceed 4.2v
X: Let me check on my resources. Please hold on.
(unknown): Thank you.
X: No problem. Do you already have our Moto G or you're planning to buy one?
(unknown): I already have one, just checked the voltage with an app (the default android hardware info menu has the same values so it's correct) and I was wondering if it's a bad thing.
(unknown): Is Moto G's battery of higher quality?
X: Okay and yes, it is.
//
I said something about higher quality because I read this: learn.adafruit.com/li-ion-and-lipoly-batteries/voltages
"Nowadays you may also be able to purchase 4.35V cells! These are the latest chemistry, they have a little more power as indicated by the voltage being higher than 4.2V. They tend to be cylinder lithium ion's used for laptop batteries, and lights so its not terribly likely you'll just run into one unless you're looking for it."
So does this mean we shouldn't worry about it?

Higher capacity battery

Hello guys, searching the net for higher capacity batteries i've found this http://www.aliexpress.com/item/free-shipping-for-BLUE-2830MAH-HIGH-CAPACITY-REPLACEMENT-BATTERY-FOR-LG-E960-E975-brand-battery/1303576275.html .
Did anyone found something like this, but from normal famous manufacturer? Two years ago I bought for my Galaxy S a PolarCell battery with higher capacity, which really lasts longer as the original and was only one or half mm thicker. Why the hell there no such batteries for our N4 or I'm not searching good enough?

There is no bigger battery with same size.
Maybe typo error, but at the description it says that battery is 1980 mah.
Unleashed by my Nexus 4

Sorry posted in wrong thread. Please delete.

good find :good:

Assuming 80% battery charging efficiency in this and the phone, 36% of energy is lost in charging this battery to charge a phone battery, vs 20% by directly charging it. So, given it's not in a phone case form factor, the only people using this will be ones where there is no power.