Develop Bugs

[Q] Battery drain application

Hi!
I'm looking for an application, that quickly kills my battery if it's low, so I can do a full charge to improve battery life.
Something, that I launch, I put my phone on the desk, have a tea meanwhile, and it's drained! Something, that turns on wifi, do some downloading, browsing, video playing, or whatever, and does it automatically without supervision. Does such app exists?

I'll second this, it'd be nice to have an app do this for me and maybe even give us some interesting stats from it?
Sent from my mind using telepathy

why would you want an application to destroy your battery?

Adevem said:
why would you want an application to destroy your battery?
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Apparently if you do a full discharge the battery life will be longer.

Soniboy84 said:
Apparently if you do a full discharge the battery life will be longer.
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not really, you should avoid deep discharges...

Byr0x said:
not really, you should avoid deep discharges...
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+1 If you had been reading around...you would know Lithium Ion batteries are designed to 'maximize' their efficiency within about two weeks of 'top up' charging. Cycle-charging is generally considered a less efficient method of charging. You will need to 'TopUp charge' this means charging as much and as often as possible. If your battery is at 89% for instance and you find yourself near a socket, plug your adapter in and charge it up to 100%. After a few days of doing this you will notice an improvement in the life of your battery when you are not able to charge.

Actually,,,
It is not matter of running your battery down to 0%.
It is ok to run it down till phone does to power on itself.
As you know battery is a single cell Li-Ion @ 3.7v
when it is fully charged it's peak voltage is 4.2v
By the time battery mah is drained down (galaxy s has 1500mah)
battery voltage should be around 3.2~3.4v range. this will depend on condition of the battery.
Battery should never go below 3.2v personally, 3.4v is my cut off.
If your battery voltage goes below 3.2v... it's time for a new battery as this kind of voltage will damage your battery, either it will leak or puff (battery will actually get bloated.
Phone has a voltage cut off so it will not over charge over 4.2v but if it does, it will likely start to smoke and catch fire.
I am sure anyone who is into electric Radio control knows all about these batteries.
Oh btw,,, long time storage voltage should be 3.8v
You'll be asking how do I know what voltage my battery is... I personallly don't know of any apps but GPS Status actually shows the temperature & voltage of your battery.

Soniboy84 said:
I'm looking for an application, that quickly kills my battery if it's low, so I can do a full charge to improve battery life.
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First, take into consideration the comments above regarding deep discharge of your battery...but, to answer your question, there's an app in the market place called 'Battery Refresh' which attempts to drain your battery quicker.

Well if it's all true above than its a good sign, and thanks for the info! I'm not an expert but in the old times I remember batteries had to discharged completely, maybe even if it's just a few times. Now somebody can also tell me why my battery is discharging when it's plugged in the socket with original charger? All I do is using the internet, and has. nimbuzz and a live wallpaper on. :S

You could probably enable the GPS/BT/WIFI ( connected to a router ) and run the interactive mode on Neocore benchmark.. that should enable most of the hardware components on the phone and stress the GPU/CPU.. probably would see a 25% battery drain for every 35-40mins.

I don't know what has changed with the batteries but as far as I know...
it is good to discharge new batteries 3~4 times down until phone does not power on.
Like I have said... it's about the voltage of the battery, not whether battery has any juice left in it or not.
These batteries have a protective circuitry so that it will not charge over 4.2v,
also as for discharge it is usually down to 3v but usually with a charger/discharger units that can control mah/volts/amps. With typical usage from the phone, it'll likely be discharged down to about 3.2`3.4v. Which is very safe.
You can do whatever you feel but I personally do this to every batteries I have for phone and every batteries I use with my radio controled cars.
For my RC cars, I have about 6 batteries ranging from 1cell to 3cell LiPo packs.
Each cell is 3.7volts.
But you don't have to force discharge and hurry the process.
Just use the phone normally and let it run down to nothing... than recharge to full peak.
Than again, choice is yours.

I'm looking for the same kind of applications. It's very useful for recalibrating your battery. Wipe the battery history then do a full cycle.
Sent from my GT-I9000 using XDA App

The old saying in RC Helicopters was that the difference between discharging 50% and 100% was the difference between getting 500 uses and 5 uses.
You should certainly avoid ever fully dischaging any lithium based battery.
Older nickel batteries (Ni-cd, Ni-MH) required full dischage cycles to get rid of memory the the metals pertained, lithium-ion and lithium-ion-polymer not only do not require this; but doing so will damage them.
And yes, the older ipods came with Nimh cells and they did reccomended full discharge cycles.
Im pretty sure the idea was to try not to let the voltage get below 3.5v/cell and never below 3.3. Dead flat is 3 or 2.85 which is when the battery simply cant produce any real current. The phone should have circuitry though to not let the voltage get above 4.25 or below ~3.5.. If the low battery warning comes on, set the brightness to dim, and stop any activities (unless its a phone call, its not THAT important but if youre playing games or watching a movie...) until yo can get to a charger.
By the way this being my first post (i meant to ages ago) Ill just mention that my galaxy S came with recovery mode and download mode Enabled, i got it just last month, Virgin network, Australia.

draining the battery fully was for the older battery types, new age batteries are not recommended to be drained fully

Thanks!
One more question:
I'm using my phone as a desktop replacement, because I don't have Internet at the moment. I'm using xda, dolphin browser and listening music. It's plugged into the mains and it's not charging. It says 49%, and stuck there. Is it possible I'm using too much battery?
Sent from my GT-I9000 using XDA App

Ok, this will be my last reply.
Fully draining or not is not the issue.
In RC, most modern electronic speed controllers have a built-in battery cut-off which will cut off power once it reaches certain voltage. Because OVER-draining battery without cut off can damage/kill/ or make it unable to hold voltage.
Also, once the battery voltage reach certain point (still within safe range) you will notice the motor being powered slow down. This would also be a recommended time to stop.
Cellular phones have built in safe cut off aswell. As I have said I have measured my battery after being full drained, voltage was around 3.55v or so. Which is very normal considering voltage of the battery is 3.7v only with peak charged voltage of 4.2.
Now, Someone mentioned that fully draining your battery repeatedly will dramatically reduce battery life.
Reducing life of the battery has more to do with the amount of AMP used to charge the battery. Faster charging is usually reduce battery life dramatically.
And without hobby grade chargers, you won't be able to control this charge rate.
Slow charge is better but charging at 1C rating is the normal. But charging at 1C means regardless of batteries mah rating, battery can be charged in about 60 minutes. As we all know, our phone batteries doesn't charge from zero to full in 60minutes, right? just like most of the portable devices it takes nearly 3~4hours to fully recharge. Last 20% usually takes longer because Amp provided to charge slowly lowers. That is why.
For example, if Galaxy S battery is 1500mah, than 1C charge rate is @ 1.5amp.
If battery is 3000Mah, 1C is 3.0Amps and so on.
So like I have said over and over before, drain your battery away if you have to by choice or not. Just use it up, I will bet you your battery will last longer than you keep your phone.

U should avoid draining ur battery to 0% (witch is not possible with ur phone. When it shows 0% the charge of the battery is at 10-15%). Li-ion batteries dont have a memory effect, so it would be usless discharching it completely anyhow. Best for sgs battery is charging it before it goes under 50% that will improve the lifetime of ur battery (not how long it lasts before u have to charge but how long it lasts before u have to go and buy a new one)
How do i know? Simply cause i had to learn that a few weeks ago for the job im learning.
@xxgg: yes ur right, it wont really damage the battery if u runn it till thr phone shows its empty. But using an app to drain battery as quick as possible will, since the app forces the battery to give out more Ampere than its built to give out
Sent from my GT-I9000 using Tapatalk

the truth about HTC extended batteries which claim same size , higher capacity

Under mango or one of the firmware updates which had been updated recently , u will see yr battery saver is fluctuating , at one time saying u have a 1 day, while another time it says u only 2 hours on a reasonably fuller charge.
there is a problem with HTC original batteries, rather i will say a safety regulation after recent incidents with battery safety
yr htc only charges up to 85% level even though the phone indicator shows 100%
when u unplug it from the charger, it immediately drains and stays at 80%.
THis is likely why the HTC phones have a shorter battery life, whether its android or windowsphone 7
this is not a defective battery, its made intentionally by HTC for 2 reasons 1) safety , 2)battery longevity ,the safety mechanism built in stops charging it to 100%, thus overcharging, overcharging means the battery is out thru stress which may pose a hazard. if a battery is fully charged to true 100 % , it poses a hazard if one of the pins in the phone connectors break. apparently this pin tells the charger or the phone not to charge anymore once reaching 100%. there is a possibility that if this pin breaks, the phone will overcharge and pose a safety hazard. So this is why HTC batteries dont charge to true 100% and this particular pin is tweaked to full charge to only 80%
wheareas, mugen batteries ect do not have this safety regulation or charging limit although they are safe to use, so they seem to last 20% more than stock HTC battery because they fully charge to 100%.
Mugen or other reputed aftermarket batteries are more likely to wear out sooner than stock batteries unless depending on the quality of the battery..
in order to get yr HTC battery to full charge it u need to bump charge it.bump charging is a technique to fully charged the battery closer to its real capacity
to bump charge
1) fully charge the battery from 20% to 100% , as indicated by the phone OS
2) turn off the charger, turn on again, u will notice the phone charges again even though its 100% full for 1/2 a minute. wait for it to fully charge
3) repeat the above step 2) for 10 times
4)use a timer plug to simplify the process. Set the timer plug to on/off every minute for 10 times. u need to get a digital timer for this purpose with mutiple timer settings

Magpir said:
yr htc only charges up to 85% level even though the phone indicator shows 100%
when u unplug it from the charger, it immediately drains and stays at 80%.
THis is likely why the HTC phones have a shorter battery life, whether its android or windowsphone 7
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Interesting. I noticed this with my HTC Mozart; battery indiactor drops one bar (to 80-85%) as soon as I take it off charge. Always assumed it was a WP7 thing - like it was drawing a lot of current.
Where did you get this info from? Looks like I'll be ordering a new (non-HTC) battery asap!

If it's true i won't buy a plug timer but a new battery, not from HTC...at least i hope it's true caus my battery capacity sucks and that gives me hopes, enjoying my hd7 more than a half day without plugging it (when it's possible)...so nuff thanks for the tip.
Sent from my HD7 T9292 using XDA Windows Phone 7 App

Funny, I have always done this with every device (maybe not the x 10 repeat!). never knoew that was the reason though thanks!!

not only HTC, there are couple of other devices like samsung galaxy ect

now u know why they claim mugen and other aftermarket batteries last longer...
mugen 1500 mah battery with the same size as the stock 1230 mah batt>
thats bull..because a 1500 mah battery looks much bigger ... the samsung omnia 7 has a 1500 mah battery and its 30% larger than than the HD7 battery....

Aphasaic2002 said:
Interesting. I noticed this with my HTC Mozart; battery indiactor drops one bar (to 80-85%) as soon as I take it off charge. Always assumed it was a WP7 thing - like it was drawing a lot of current.
Where did you get this info from? Looks like I'll be ordering a new (non-HTC) battery asap!
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thats because the battery stops charging once it reaches 85%
u may have heard of the HTC bump charging technique. thats what this si all about , but u need to do it everyday, so get a timer plug and leave it to do its job overnight everyday
the best is to use a digital programmable timer plug .

Ok, had a google and looks like your post is only partially true:
http://phandroid.com/2010/12/25/you...is-lying-to-you-and-its-not-such-a-bad-thing/
Appears it's an issue with all smartphones, not just HTC! Also bump-charging will dramatically reduce battery life.
As someone in the comments says; why can't the phone just stop charging and switch to running wall power once battery gets to 100%, same as laptops? I assume this is what Apple do, as the iPhone doesn't suffer from the same issue.

Interesting because I have no problems with my battery doing that running Mango beta 7712 on my HTC 7 Pro.
The moment I take my battery off once it turns green, it stays at 100% for hours if there's absolutely no activity on it.
I think it's how far you guys are draining your batteries. Ever since I've gotten my phone, only twice did I push the battery lower than 15% charge; once on accident and another to recalibrate it. After that, I never pushed it lower than 15% and made sure to only recharge it after at least a good 20% of usage (days i feared i wouldn't be near a charger and needed full charge).
Granted, I'll add that it maybe be because I swap the battery out every other night with a spare, and if I do so I make sure there's between 50-58% charge left.
No bump charging either.

ScottSUmmers said:
Interesting because I have no problems with my battery doing that running Mango beta 7712 on my HTC 7 Pro.
The moment I take my battery off once it turns green, it stays at 100% for hours if there's absolutely no activity on it.
I think it's how far you guys are draining your batteries. Ever since I've gotten my phone, only twice did I push the battery lower than 15% charge; once on accident and another to recalibrate it. After that, I never pushed it lower than 15% and made sure to only recharge it after at least a good 20% of usage (days i feared i wouldn't be near a charger and needed full charge).
Granted, I'll add that it maybe be because I swap the battery out every other night with a spare, and if I do so I make sure there's between 50-58% charge left.
No bump charging either.
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yes its better to maintain 20% charge .

If u noticed the iPhone batteries wear out faster.
About year or so.

Just to confirm I have used the timer plug technique twice the last 2 days .
This is what I have
30% charge
8 hours since last charge
Moderate usage.
Somehow those who claim to use momax or mugen batteries claim to have the same results above .

the charge-controller is in the phone not the battery.

schranz01 said:
the charge-controller is in the phone not the battery.
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apparently it still the battery...

up for awareness.....

My HD7 doesn't do this. Tried several times even over a 5 minute span keeping the battery indicator in view. It never dropped to 80%.
---------- Post added at 08:57 AM ---------- Previous post was at 08:54 AM ----------
Magpir said:
yes its better to maintain 20% charge .
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You should not let Li-ION batteries fully discharge, ever. It's good to keep it on a charger whenever you can, than keep it off a charger and let it fully discharge. That wears the battery out.
Also, there's no risk in overcharging the battery because almost all decent phones will stop charging when the battery is full. They know when to stop charging, just like they know when to alert you that the battery is fully-charged (via a notification and/or changing the LED Notification light color).

You actually can overcharge it by exposing a fully charged battery to higher temperatures - putting the phone in direct sunlight or setting it in a car holder in the way of hot air from the heater deflector while using Satnav, for example. In order to avoid these conditions, controllers do prevent batteries from 100% charge. That being said, I don't think there's a standard for marking battery capacity, and an honest manufacturer should put real effective battery assembly capacity accounting for those limitations, not the sum of capacities of included cells. Don't think they do it really.

vangrieg said:
You actually can overcharge it by exposing a fully charged battery to higher temperatures - putting the phone in direct sunlight or setting it in a car holder in the way of hot air from the heater deflector while using Satnav, for example. In order to avoid these conditions, controllers do prevent batteries from 100% charge. That being said, I don't think there's a standard for marking battery capacity, and an honest manufacturer should put real effective battery assembly capacity accounting for those limitations, not the sum of capacities of included cells. Don't think they do it really.
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Yea, its like computer hard drives and flash cards....Formated they never will be the size your quoted or paid for.
I wish there was standards for this and it's only sold on the actuall usable space or time.

N8ter said:
Also, there's no risk in overcharging the battery because almost all decent phones will stop charging when the battery is full. They know when to stop charging, just like they know when to alert you that the battery is fully-charged (via a notification and/or changing the LED Notification light color).
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It's actually still not good to leave li-ion batteries plugged in when they are fully charged and stopped charging. They will suffer from capacity loss that way as well. Not to mention any heat coming off the device.

Update: i did not bump charge today..
and the old symptom returned again.. draining fast

New battery & how to condition it

I'm ordering a spare battery; what is the best way to give it it's first charge / how should I condition it?

I don't think a lithium ion battery needs to be "conditioned" since it does not have the "memory" effect. It's usually the battery stats on the phone that can mess up the reading.
I would probably just make sure it is fully charged when switching them to be more accurate. But, I'm no expert...
Vangelis13 said:
I'm ordering a spare battery; what is the best way to give it it's first charge / how should I condition it?
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Thanks for the reply.
I'm fairly sure I'd read somewhere that it should be fully charged before turning on the phone for the first time & after that do a couple full cycles (full-empty-full) etc..?

Yes, a full charge before using is recommended (I've also heard to let it sit on the charger for a couple more hours after it is charged helps) and maybe a few full "cycles" after that. But, like I said, I'm no expert and I, personally, have had no issues with my battery
Vangelis13 said:
Thanks for the reply.
I'm fairly sure I'd read somewhere that it should be fully charged before turning on the phone for the first time & after that do a couple full cycles (full-empty-full) etc..?
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live4nyy said:
I don't think a lithium ion battery needs to be "conditioned" since it does not have the "memory" effect. It's usually the battery stats on the phone that can mess up the reading.
I would probably just make sure it is fully charged when switching them to be more accurate. But, I'm no expert...
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True, it's not for the battery but for the phone stats. Lithium ion batteries are fully conditioned at the factory before being sent out. It's the last step in the actual cell manufacturing process.
Yes, I work for a lithium ion battery manufacturer. We make larger cells (not the tiny ones in a phone battery) but I have contacts and friends that work for other manufacturers that do make the little ones and they're basically all the same.

i ordered too 1800mah batteries cause i couldnt find any 1950s...they both arrived dead i waited 30 mins to charge and turn the phone on, and the other one is extremely dead it shows charging for a few minutes and then the red light turns off
so far the one i charged to 100% isnt working how i would have liked it dropped to 50% within a few hours and i charged it to 100 again and it dropped to 80 very quickly im gonna let it die tonight hopefully i get them to work good

Sorry about your bad experience.
Don't know what you purchased or the vendor, but I purchased a 3200 mAh batt from Siedio and am quite happy with it. I've been using it for over a month and get heavy use of my Atrix. High quality batteries are not cheap. Don't get the $20 dollar specials. (I have no financial interest in Siedio, I'm sure there are other vendors with quality batteries).
Battery calibration has been a challenge but I think I have a solution. I'll know in a few days as I'm presently recalibrating. It would have been so much easier if Moto had added a 5 cent current sensor to the phone.

I wouldn't worry too much about conditioning it. Just use it like you regularly would any other battery. Most horrible battery life comes from the way Android handles the battery stats. In my experience, most Li-ion batteries seem to really get their most effective use cycles after about a week or 2 of consistent usage. If you're experiencing some really drastic battery drops though, that's when it may be time to recalibrate the battery stats or start questioning the rom/radio/kernel that you're using.

k0sun7eash3d said:
I wouldn't worry too much about conditioning it. Just use it like you regularly would any other battery. Most horrible battery life comes from the way Android handles the battery stats. In my experience, most Li-ion batteries seem to really get their most effective use cycles after about a week or 2 of consistent usage. If you're experiencing some really drastic battery drops though, that's when it may be time to recalibrate the battery stats or start questioning the rom/radio/kernel that you're using.
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Yep. However, unless you're impatient, charging it to full shouldn't do you any harm

For Lithium ion batteries, I've always put them immediately on the charger, let them go to 100%. Then unplug and let it completely die (that is, let it get so low the phone turns itself off) without pluging in. Then charge back to 100%. After that, use as normal. Doing this has gotten me long battery life, both short and long term compared to others I know who dont do that.

When I bought my phone the Bell representative said to fully charge then discharge the battery. I thought that you aren't supposed to do this though because Li-Ion batteries lose some of their maximum life when you do that. Only Ni-Cad batteries needed conditioning like that.
I could be wrong though. Would be nice to know proper procedure for this kind of thing
Sent from my MB860 using XDA App

You're right, lithium ion batteries should not be fully discharged but it does help the first time to get the battery reading accurate. After that just charge whenever. It only really becomes a problem if you let it go dead too often.
Sparx10 said:
When I bought my phone the Bell representative said to fully charge then discharge the battery. I thought that you aren't supposed to do this though because Li-Ion batteries lose some of their maximum life when you do that. Only Ni-Cad batteries needed conditioning like that.
I could be wrong though. Would be nice to know proper procedure for this kind of thing
Sent from my MB860 using XDA App
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live4nyy said:
You're right, lithium ion batteries should not be fully discharged but it does help the first time to get the battery reading accurate. After that just charge whenever. It only really becomes a problem if you let it go dead too often.
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+1. There's two reasons store reps tell you to discharge and charge the battery at least one complete cycle before using the phone. The first is that they're stuck in the past and think li-ion tech is the same as NiMH. The second and more sound reason is that it helps to set the battery statistics. If you're one of those people who loves to mod their phones right when they open the box, you could theoretically bypass this step by rooting and charging to 100%, and then just doing a manual battery recalibration by wiping the battery stats.

jbg1 said:
i ordered too 1800mah batteries cause i couldnt find any 1950s...they both arrived dead i waited 30 mins to charge and turn the phone on, and the other one is extremely dead it shows charging for a few minutes and then the red light turns off
so far the one i charged to 100% isnt working how i would have liked it dropped to 50% within a few hours and i charged it to 100 again and it dropped to 80 very quickly im gonna let it die tonight hopefully i get them to work good
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Yeah - if these are the Chinese jobs that came with the charger on Ebay, I got them too. They drop REALLY fast down to 5%, then I get at least another 24 hours out of them. It's crazy. I have tried to recalibrate by removing battery stats, but these haven't gotten any more accurate in several full charge / discharge cycles.
I suppose I will use them as spares, and just understand that the meter is not accurate on them. I still get a minimum two days with these cells. Will see how long they last. With batteries, you do get what you pay for.

Best charging practices

What are the best charging practices to use with the lithium polymer battery that's in the 2014? Given that it takes so long to charge the darn thing having it less than fully changed seems like a huge hassle and a problem just waiting to happen. My laptop has a lithium polymer and from what I've heard it's best to keep it charged around 60% as a full charge or very low charge could hurt the battery life.
I was hoping I could just charge the thing every night and wake up with a full charge, but if it's going to kill my battery life then I'm not sure what I should do.

gina$zanboti said:
What are the best charging practices to use with the lithium polymer battery that's in the 2014? Given that it takes so long to charge the darn thing having it less than fully changed seems like a huge hassle and a problem just waiting to happen. My laptop has a lithium polymer and from what I've heard it's best to keep it charged around 60% as a full charge or very low charge could hurt the battery life.
I was hoping I could just charge the thing every night and wake up with a full charge, but if it's going to kill my battery life then I'm not sure what I should do.
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I charge my 2013 Note 10.1 every night if the battery level is below 65% and if the level is above that I just turn it off till the next day. It has been working for me for 8 months now without issue.
.

kkretch said:
I charge my 2013 Note 10.1 every night if the battery level is below 65% and if the level is above that I just turn it off till the next day. It has been working for me for 8 months now without issue.
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Yea I'm using a family member's 2013 note 10.1 and the battery depletes really quickly. Also if I'm not mistaken the 2013 model uses a lithium ion battery. The new 2014 will be using a lithium polymer.

gina$zanboti said:
What are the best charging practices to use with the lithium polymer battery that's in the 2014? Given that it takes so long to charge the darn thing having it less than fully changed seems like a huge hassle and a problem just waiting to happen. My laptop has a lithium polymer and from what I've heard it's best to keep it charged around 60% as a full charge or very low charge could hurt the battery life.
I was hoping I could just charge the thing every night and wake up with a full charge, but if it's going to kill my battery life then I'm not sure what I should do.
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Maintain charge between 40 and 80 percent to increase the life of lithium ion/polymer batteries.

Haven't used my old Note 10.1 (or my brand new one) too much, but my Note 1, Note 2 and iPad 4 I keep charged constantly and every 2 weeks or so I fully discharge (=use it until it is 10% full). This way I can nearly always take it with me to some forsaken place (without electricity) for many hours. I discharge whenever convenient or when the battery has run below 80-85%. Battery after one year of use is excellent. Do not use this method with crappy chargers on crappy phones as they could overcharge the battery, which is bad for battery life. As an indicator: Your phone should be cold when on charger and battery full.

I found this link that I thought provided some more helpful info on how to deal with your lithium ion/polymer batteries:
http://batteryuniversity.com/learn/article/how_to_charge_when_to_charge_table

[Q] Battery Practices

Looking to maximize my battery. How low should I let the battery go before recharging? Should I ever let the battery drain? If so, how frequently? I tried researching online but keep getting different answers. Thanks.

Avoid draining it completely. Flat cycles(partial charging) are healthy. Best stop charging before the battery reaches 100%.
I'm too lazy for that. But I use every opportunity to recharge my gadgets and cannot remember a case, where i had a significant decrease in battery capacity within the first three or four years.

Also dont let it drop below 30% as this isnt good for the life of the battery.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.

There are a lot of different opinions on how low to let your battery get. I've used lithium ion batteries for a lot of tools, devices and such and believe not letting it go dead is key. I think it can go below 30 easily and still be fine. I usually throw it on the charger when it gets to about 15. And also now a days lithium ion batteries can stay on the charged pay the point if when it says fully charged. I heard it will not affect them in any way. I have a lot of tools I leave on over night and phones, tablets that when doing so they have lasted years with it damage to the battery.
Sent from my Nexus 5 using Tapatalk

Heat is also very hard on your battery.