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First, just to clarify the dock battery drain problem is:
With the tablet locked into the dock, and turned off (not standby), the dock battery loses power at a rate of about 2% per hour. This occurs with the tablet off, but locked into the dock. There is a nice long thread about it here.
I went to my local Asus service repair center. I talked to them about the dock battery drain issue. They said they would be willing to look into it, and if my dock has a problem repair/replace.
With that being said, I have not seen a single post of someone saying either 1) they don't have the dock battery drain problem, or 2) they hand the problem successfully repaired by Asus.
If you have do not have the dock battery drain problem, or have had it successfully repaired, Please reply to this post.
I need to know if it is going to be worth the time to let Asus take a look at my dock. I already have a B60 model dock, so I'm not going to get an upgrade to a newer model out of the deal. I don't want to give them my tablet, just to hear back that there was nothing they could do or give me a new keyboard which also has the problem.
So, should I let Asus check to see if I have a dock battery drain problem?
Also, as a heads up, I asked them about replacement USB/charging cables. The service department doesn't have any, and they will call the Shanghai distribution center about ordering some. They said they will call me back Monday and let me know if they can get any. If I can get some extra cables, I will let you know.
Mine seems fine now only about 8% drain during the same amount of hours, Had 0209 update installed but received a minor dock update last Tues, did'nt realise what it was for but after, no drain on dock when connected and closed. All the batch numbers will be the same hardware B3-B6 it will be a software issue, my update popped up as a notification, just installed and bingo.
PS to the above, I leave all radios on GPS WIFI etc, same with my HTC desire HD and Ipad, this will account for the minimal drain. Also I would imagine when docked if the tab loses 1% because of the process of regarging from the dock, it may take more than 1% of dock power to replace it. I mean the collective power of the dock plus the energy need to transfer full power back to the dock might not be equal, if the pad was flat and you had 80% in the dock if you closed it, my guess is you would only get 60% after transfer back to the Tab.
Do you have any information on what that minor dock update is, or where you got it? Also what country do you live in, and which rom do you use?
Strange. Most people with B60 docks are reporting no drain, or at least less drain.
Is your Tf also B60K?
typci said:
With that being said, I have not seen a single post of someone saying either 1) they don't have the dock battery drain problem, or 2) they hand the problem successfully repaired by Asus.
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What do the specifications state the drain SHOULD be? As clearly without knowing that, how can anyone know something is outside specification...
Cool, good point about knowing the specifications so I can tell if I am out of spec. However, it's a lithium ion battery. I really hope specifications do not include a drain over 1% a day. If they do I am really really disappointed in Asus. I have plenty of devices that have lithium ion batteries, most of them have battery drain near zero. I have a 5 year old laptop that will drain out the battery in about a week. But that is a very old piece of equipment, not a new computer.
If most people with the B60 are reporting no drain, then that is the answer I need. I have a drain of 2% per hour. If people are reporting less drain, how much drain is the average person experiencing with the B60? Based on the dock battery drain thread, I think it is 2%.
Also, where do you see the posts of people who have no battery drain? I've only seen one post of someone without battery drain, and 1 post of someone with less that 1% per hour.
typci said:
Cool, good point about knowing the specifications so I can tell if I am out of spec. However, it's a lithium ion battery. I really hope specifications do not include a drain over 1% a day. If they do I am really really disappointed in Asus. I have plenty of devices that have lithium ion batteries, most of them have battery drain near zero. I have a 5 year old laptop that will drain out the battery in about a week. But that is a very old piece of equipment, not a new computer.
If most people with the B60 are reporting no drain, then that is the answer I need. I have a drain of 2% per hour. If people are reporting less drain, how much drain is the average person experiencing with the B60? Based on the dock battery drain thread, I think it is 2%.
Also, where do you see the posts of people who have no battery drain? I've only seen one post of someone without battery drain, and 1 post of someone with less that 1% per hour.
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I'll test my dock tonight.
Just to verify. Im supposed to turn off the tablet completely and keep it docked then record the percentge drop on the tablet after a few hours right?
I got my tF and dock from the first or second batch of shipments I believe. Not sure what version of each I have. how do i go about checking?
starplaya93 said:
I'll test my dock tonight.
Just to verify. Im supposed to turn off the tablet completely and keep it docked then record the percentge drop on the tablet after a few hours right?
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Record the percentage of both the dock and the tablet before shutting down.
I get the drain as well, B50 on both the tab and the dock. The drain is NOT normal Li-ion drain as it doesn't happen when they aren't docked.
Additionally - to the people that say it's normal to have this much drain with the radios turned on, we mean that the tab is turned OFF. Not screen off, but the entire thing off - as in hold the power button until the pop-up and push the soft turn off button on the screen.
I kinda like them always together and then just separate them whenever I want to use the Tablet alone.
Will there be any detrimental effects like the Total battery life will lessen after a long time?
i dont believe so, i run mine that way now, mostly a tablet but every once in a while ill disconnect it and run the batteries to 0 just to get a recharge.
blessedswine said:
i dont believe so, i run mine that way now, mostly a tablet but every once in a while ill disconnect it and run the batteries to 0 just to get a recharge.
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Thanks! I was afraid 'cause I've heard rumors that if you leave phones charging overnight or if you always have laptops plugged in, the battery life would lessen eventually.
with all battery powered electronics i allow them to discharge fully once a month.
yuhenyo said:
Thanks! I was afraid 'cause I've heard rumors that if you leave phones charging overnight or if you always have laptops plugged in, the battery life would lessen eventually.
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There have been reports of some docks with horrible battery drain. Test yours with these instructions I got in a PM a few months ago from someone representing themselves as from Asus (many other XDA members got the same PM). I RMA'ed my dock after testing and it's been great since.
The following is a step-by-step guide on how to verify if your unit can support the new optional battery saving mode:
(1) Make sure your software is updated to 8.2.3.13 or later; and your mobile dock is updated to 0209. ([Setting]>[About Tablet]>[Build Number] & [Mobile Dock version])
(2) Dock the Pad into the keyboard dock.
(3) Go to [Settings] > [Screen] and select [MobileDock Battery saving mode]
(4) Press power button on the Transformer Pad to make the unit go to sleep.
(5) With the option checked, if your unit does NOT wake up with the tap of a keyboard, the new battery saving mode is enabled and working.
(6) With [MobileDock Battery saving mode] checked,iIf your unit still wakes up by a key press, you have the earlier design.
(7) If #6 is true and you also require the new feature, then please contact your local ASUS service center “
yuhenyo said:
Thanks! I was afraid 'cause I've heard rumors that if you leave phones charging overnight or if you always have laptops plugged in, the battery life would lessen eventually.
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I've not really experienced this, so much as in my personal opinion: my phones battery life has lessened considerably since I spent a few weeks of running it down to the at or near the single digits between charges. Can't say for sure though, since what also changed since then, I use it a hell of a lot more too. Now're days I will usually leave it charging if it will be sitting around a while.
My TF, the dock is often depleted or laid low without any real problems; can't say I've done the same to the tablets battery though.
Spidey01 said:
I've not really experienced this, so much as in my personal opinion: my phones battery life has lessened considerably since I spent a few weeks of running it down to the at or near the single digits between charges. Can't say for sure though, since what also changed since then, I use it a hell of a lot more too. Now're days I will usually leave it charging if it will be sitting around a while.
My TF, the dock is often depleted or laid low without any real problems; can't say I've done the same to the tablets battery though.
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owww.. another question is that would the dock ever lose power while connected to the table?t? ' cause mine still has 3% and it stopped charging the tablet.
In the case of Lithium Ion batteries (which most smart phones and tablets have nowadays, including both TF and dock), it is detrimental to let them discharge to 0% and then fully recharge. It is always best to charge whenever possible, and even leaving your TF plugged in overnight is not bad at all for the life of your battery.
al2x said:
In the case of Lithium Ion batteries (which most smart phones and tablets have nowadays, including both TF and dock), it is detrimental to let them discharge to 0% and then fully recharge. It is always best to charge whenever possible, and even leaving your TF plugged in overnight is not bad at all for the life of your battery.
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wow! great! now all my worries are gone. I guess I'll charge away then.
yuhenyo said:
owww.. another question is that would the dock ever lose power while connected to the table?t? ' cause mine still has 3% and it stopped charging the tablet.
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When I first got my TF, I was curious as to whether or not the dock would stop working once it had ran out of battery; testing it, I found the sae result. Dock sticks about 3% and the tablet continues to discharge. I assume the docking connector works both ways and allows powering the dock off the tablet.
I prefer to charge before then though, usually at like 35~19 %. When I undock, I usually leave the dock plugged in to top off, even if it was like 80%.
hi friends,
got my tf300 32gb + keyboard dock from best buy, US...rooted it and updated it to .29 f/w......running excellent...no issues
the first charge was done for 8hrs with tab+dock...it is still running great now after 2 days with still 30% juice remaining on tablet and 0% on dock (i store the tab connected to dock, so the tab is slurping off the juice from the dock)
now i want to know ..what is the 'best' way to keep charging this awesome machine...(i know there might not be an 'ideal' way..)
should i wait till the charge in tab goes to less than 10% and then charge it with dock or should i charge them seperately, ensuring the dock doesnot reach 0% ?
how do you guys do it?..just wanna know different thoughts
I just use mine throughout the day, starting around 7:30am when I get up and ending at 10:00 when I plug it in by my bed.
By that time its usually around 45-50% on the tablet and 0% on the dock but keep in mind that I use this as my primary means to access the internet especially at my school cuz the computers suck. It then charges overnight and by the morning its full again.
I don't know if this is the most battery effiecent (ie: long term strength) but it works ok for me and I've never had any problems with other devices that have used the same basic schedule.
Sent from my ASUS Transformer Pad TF300T
SilentStormer said:
I just use mine throughout the day, starting around 7:30am when I get up and ending at 10:00 when I plug it in by my bed.
By that time its usually around 45-50% on the tablet and 0% on the dock but keep in mind that I use this as my primary means to access the internet especially at my school cuz the computers suck. It then charges overnight and by the morning its full again.
I don't know if this is the most battery effiecent (ie: long term strength) but it works ok for me and I've never had any problems with other devices that have used the same basic schedule.
Sent from my ASUS Transformer Pad TF300T
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The worst part about this practice is letting the dock run all the way down to 0%, because that means a full charge cycle every day. Charging the tablet at 50% or so is fine, though. If you could figure out some way to charge the dock at the same 50%, you'd be in good shape.
Might be impossible given your usage patterns, though. I'd just expect the dock battery to wear out much faster than the tablet's.
Don't think there's a practical way of avoiding running the dock to 0%.
I've read thousands of posts on the ideal way to treat modern (Li-ish) batteries, and so far I lean towards keeping them as charged as possible.
That is - they wear out faster if the're discharged alot to for instance 0%.
The old "discharge to train them" or whatever seems to be either an outdated practice or a myth, and - if I've got it right - outright bad for modern batteries. Which means some companies most likely applaud the practice to sell more stuff.
But I'm not an expert (then again - very few people seem to be).
It's an outdated practice related to the old NiMH batteries from the 80s. If you didn't discharge NiMH batteries to 0%, then whatever percentage you charged it at would be the new 0%. For instance, if you were to plug it in at 50% one day, your battery capacity would automatically be cut in half because the battery would think 50% was "empty". NiMH batteries were eventually fixed, but even then, and even today with Li-Ion batteries, some people think they should be discharged completely.
Also, keeping Li-Ion batteries completely charged all the time is equally as bad as constantly letting them drain completely. Personally, I charge my tablet when it warns me that my battery is low, around 14%.
EndlessDissent said:
Also, keeping Li-Ion batteries completely charged all the time is equally as bad as constantly letting them drain completely. Personally, I charge my tablet when it warns me that my battery is low, around 14%.
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"as charged as possible" combined with a very mobile device = charging at 20-50% for me.
When I plug my tablet into the fully charged dock, and the tablet battery is below 60%, it discharges the full dock battery within 2 hours. In order to avoid fully discharging the dock as mentioned above, one would be constrained to only 2 hours of netbook type use (or maybe a few hours more if the tablet is fully charged) which defeats the whole benefit of 10+ hours of battery life when using with the dock.
Given this, I believe the doc battery must be able to withstand regular full battery discharges, otherwise Asus probably would have devised a different algorithm for charging.
When I first got my Galaxy S3 (Verizon) the OEM battery lasted at least a good 9 or 10 hours, usually plenty to last the day. But I wanted more than that so I got a pack of 2x QCell 2300mAh batteries for cheap on amazon, with one of the wall chargers that you pop the battery into. That was July of last year and I promptly lost one of the batts at school, so in May of this year I got another pack of 2 batts, this time EZOPower, 2100mAh.
Both brands worked pretty well while I had them and I would generally just start the day taking my GS3 off the charger and putting the extra battery in my pocket, and at ~8pm or so I'd switch them out and have more than enough for the rest of the day, and some for the next day if I didn't make it home for some reason that night.
But recently that time to switch has been creeping down earlier and earlier, and lately I've noticed I wake up to the battery icon showing the circle but no percentage (just switched from AOSP to Pacrom, dunno if that makes a difference) and when I take it off it's about 95%. When I switch batts, which is now at about 2 or 3pm if I wake up at 10, the second one (coming off the cheap battery-only wall charger) is at 75% or thereabouts and each lasts less than 5 hours.
Attached are my stats from the other day. I keep all my radios on all day usually but lately I've been having to selectively put it on airplane mode whenever I can afford to, if I want to have enough juice to last through the evening. This sucks. I know batteries die over time but I've literally had these ones for a few months and they're terrible already. Is it because of my hot swapping habits? Does that drive down the battery life over time, or is it something to do with how android pegs the amount of juice left on each battery? Is there a way to wipe the battery stats, or would that even help? There used to be an option for it in CWM but I looked today and I suppose it's gone. I'm not sure what I'm doing wrong but I've never had battery life this bad on any phone.
tl;dr bought a pair of non-OEM batteries with a wall charger, been hot-swapping them for more power throughout the day, but in just a few months their life is approaching nil. What am I doing wrong?
Bump. Anyone knowledgeable on this? I'm pretty sure it could apply to just about any phone and I know plenty of other people do the same thing I do with these battery pairs on Amazon so this would be useful for progeny.
Do you leave them in the charger until you need them? Usually, the longer a battery charges while it's fully charged, the more the total charge will diminish. So, the longer you keep it charging more than it needs to, the faster the battery dies out. Also, when you get a new rechargeable battery, or even a new phone or tablet with a rechargeable battery in it, the first thing you should do is use it till it's drained. Don't immediately plug it in to the charger. Keep in mind, though, that no matter what you do your batteries will diminish. Cheaply made batteries will diminish faster than higher quality ones, so that may attribute to how fast your batteries are dieing.
I could be wrong, though.
I actually do keep it on the charger long after it's charged. And I have heard that before - but don't most chargers have a built in feature that cuts off the current once the battery is fully charged?
Anyway I'm not sure that's the sole reason for the batteries being so ****ty. Although idk, I also could be wrong, lol.
Hi!
I have a question.
My S22 Ultra will arrive this week and I don't know how to charge on the first couple of days/weeks.
There is the option to protect the battery and don't charge over 85%. should I use this option on these first days or charge it until 100%????
On my daily basis perhaps I'll use that option, what do you think?
Thanks a lot.
i keep it at 85% setting ever since it was introduced
PLEASE HELP!!!
Deiota77 said:
Hi!
I have a question.
My S22 Ultra will arrive this week and I don't know how to charge on the first couple of days/weeks.
There is the option to protect the battery and don't charge over 85%. should I use this option on these first days or charge it until 100%????
On my daily basis perhaps I'll use that option, what do you think?
Thanks a lot.
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Just charge it normally. You'll definitely need to have it on the charger during the initial setup.
Deiota77 said:
Hi!
I have a question.
My S22 Ultra will arrive this week and I don't know how to charge on the first couple of days/weeks.
There is the option to protect the battery and don't charge over 85%. should I use this option on these first days or charge it until 100%????
On my daily basis perhaps I'll use that option, what do you think?
Thanks a lot.
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Click to collapse
You can use it straight from the go and not worry about anything.
My tired and true method when I first get a new phone is by calibrating the battery to run for optimal usage. I let the battery drain the first time until the phone shuts off and then charge it to 100%. I do this again one more time. After that I just charge it to 100% and let it drain and top up however and whenever I feel like it.
There's a couple of reasons for this. First battery life isn't a strong suit for this phone unlike say an iPhone 13 pro max so I'm not going to waste my time running towards a charger all the time. Secondly, the benefits of charging between 75-85 percent and 20-25 percent is negated or lost on me because I'll most likely move on to a new phone by the time the extra battery life that I've managed to squeeze out can be taken advantage of. Now if you're likely the type of person who's going to hold on to his phone until it dies or will be willing to change out the battery to continue using it, then by all means go ahead and toggle the option and follow that road..
Hope this helps..
Plug it in, charge, use it - then plug it in again etc... smartphones aren't made to last forever, after a few years they all become an obsolete junk - that's my personal opinion, you can follow any charging routines you like.
Minimum start charge battery temperature is 72F, 82-90F is better.
Never start charging if below 40F.
Best not to drain past 20%, 30% is better.
72% is a better top off number.
Regardless of how much you charge it, observe the minimum start charge temperature.
Once a battery has reached 80% of it's new capacity it is degraded and should be replaced to prevent a failure which can heavily damage the phone.
A degraded Li is more likely to fail.
Any battery swelling (rear cover bulge) is a failure, do not charge, replace asap. A failure can happen at any time in the battery's life cycle and they can happen fast.
I now replace my N10+ batteries every 1-2 years, routine maintenance.