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Hi,
I am getting a MDA and i want to get the ultimate battery life out of it. So it should be arriving soon, and i want to know how to start getting the most out of it. I have looked on the board at the horror stories of batteries lasting not so long. I have experienced that as well.
This is a replacement unit for a USED MDA that i bought. So i have no idea how the previous owner charged it. But i get only about a 24hrs out of it with hardly any use on it besides a few calls.
I will not open the unit till i get a few replies on the initial charge and charging thereof.
Please post your battery life and how you charged and continue to charge the battery and phone now.
I plug my phone into the wall.
It's a good idea to charge the battery completely before using the device, then do not charge it again until it dies. Run at least several cycles like this - this helps the battery last longer in the future.
seugene said:
It's a good idea to charge the battery completely before using the device, then do not charge it again until it dies. Run at least several cycles like this - this helps the battery last longer in the future.
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Ya, after searching through the threads i get mixed opinions. Some say do that. Others say keep it tipped off. I am in half a mind.
pda battery is a bit different from phone battery.
while new phone battery need to charge at least 10hrs in order to achieve max performance, is it different with pda battery.
you dont have to charge that long before you use it. just make sure it is fully charge and when you are not using ur wizard, just plug in to ur usb cable. the more you charge it the longer it will last.
I wouldnt worry too much, replacement batteries can be obtained from Ebay for about 14 quid.
I basically have mine connected to my PC all day so it never really gets very low apart from at the weekend when I'm not at work but the charge will usually last the weekend unless I do a lot of wireless surfing.
i fully charge mine every few days. i seem to get a decent battery life off of it with moderate use (about 60 mins worth of phone calls a day, texting, mp3 player for 20 mins a day, gprs/wifi for about 10 mins a day) i have quite a few programs on it that would drain the battery moreso, but at the end of the day ive usually got about 60% battery left. my phone is only 3 months old mind.
if i forget to charge it, and whilst in the office, a simple case of plugging it into the pc keeps it topped up
Hi guys, I recently decided to root my g1 with JF1.5 and I'm loving it so far. I did notice that it takes alot longer to charge the battery though. Is anyone else having this minor problem, and is there a fix?
thanks in advance for any imput
Battery Charge
I'm having the same trouble, and for whatever reason once it gets up to 95% it gets to 100% in under a minute, whereas as long as it took to charge it should be another 10 - 20 minutes. I'm not really worried about it though. Makes me think I have a really long battery life!
I'm not too worried either, as I have a car charger, but one of the things I admired about the G1 was how blazing fast it took to fully charge, and I miss it, is all.
B3astofthe3ast said:
I'm not too worried either, as I have a car charger, but one of the thing I admired about the G1 was how blazing fast it took to fully charge, and I miss it, is all.
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and how blazing fast it took to drain completely.
Once you have it fully charged, let it fully run down once (i.e. until the phone turns itself off). This should allow your phone to relearn the battery's limits. Note that I do not recommend doing this much, as it may decrease your battery's life.
this topic's been covered on 2 other threads ive seen. However, i dont think anyone's come up w/ a solution yet, or a cause. I don't mind it so much since my phone will still last a little over a day w/ mild use before i would need to recharge it.
letting it run down completely and charging it fully doesn't fix it. neither does taking out the battery for a bit and putting it back.
I noticed that it took longer to recharge, but im not worried about it.
I noticed that if i reboot the phone while its charging the percentage raises dramatically, so if i am in need of recharging i normally hit a 3 finger salute while its charging.
Hey try this out..this is going to sound weird but stick with me.
Im on rooted OTA stock running netarchy's 4.2 kernel. The battery life is the bees knees while the phone is idle, but while the phone was on it was sucking (that's to be expected right?)
But then I started charging up my phone recently from 57%, so I get to 92% so i can send a text (my chord is effed up, so i cant just pick it up and send it while its charging or else it will short out) and I noticed that the whole time im typing im still on 92%. Big whoop most of y'all are thinking, but this text was 11 texts...
I think unless we are using a wall charger, we should stop charging our batteries to 100%..I say this because there is something wonky going on when we do charge to "100%." I lost 8% in 20mins from 100% while my phone was idle on this kernel, yet whenever I half-ass charge it, i can hold it like there's no tomorrow.
So i propose that if your phone is 50% at night, charge it until you reach about 85% before sleeping; then in the morning plug it back up to the charger and make sure you dont hit 100% or anything close, try to get it to 95% then start your day. I think this will give some killer battery life.
Just a thought.
I charge my phone up to 97%. gives me almost 15 hrs. of use.
It all depends on how long it's on the charger after it hits the 100% mark. Basically, as long as it's on the charger, it will hit 100% and then the display will stay there. However, the charger actually charges to 100%, then waits until it falls back down to 90%, then starts charging again ad infinitum. So if it's been on the charger awhile after hitting 100%, it may very well be closer to 90% in reality.
Noxious Ninja said:
It all depends on how long it's on the charger after it hits the 100% mark. Basically, as long as it's on the charger, it will hit 100% and then the display will stay there. However, the charger actually charges to 100%, then waits until it falls back down to 90%, then starts charging again ad infinitum. So if it's been on the charger awhile after hitting 100%, it may very well be closer to 90% in reality.
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I know that and understand it, but I don't understand why other people know this and still complain about losing the 10% in the first 10 minutes when they can easily stop it.
Oh well, kernel .35 that's being worked on toast fixes this apparently.
Sure, it's just that "don't charge to 100%" isn't really a solution, it just prevents you from running into the confusing situation with the battery meter.
i charge to 100 % every time and get 15 - 17 hours per charge with moderate use
Noxious Ninja said:
Sure, it's just that "don't charge to 100%" isn't really a solution, it just prevents you from running into the confusing situation with the battery meter.
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I see what ya sayin, that's true. I just can't bare to see that drop from 100 though since i really do use my phone heavy, it replaces my laptop while at school, so my awake time and uptime are usually within 30 mins of each other (I don't let it take any naps)
I'll just say that this is my own personal solution, since it makes me feel better haha
Some of you guys are putting way too much stock into small movements of the battery meter.
Noxious Ninja said:
Sure, it's just that "don't charge to 100%" isn't really a solution, it just prevents you from running into the confusing situation with the battery meter.
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If you want to objectively test this theory, do three runs:
1. Charge to 100% and remove after ten minutes.
2. Charge to 100% and remove after two hours
3. Charge to 95% and remove.
To make it go faster, run your most intensive applications and time how long it takes to drain. To do this test properly, there needs to be many different trials with a proper control; however, this should serve our purposes well enough. Any takers on doing this? I can't go that long without using my phone for work/school.
jonnythan said:
Some of you guys are putting way too much stock into small movements of the battery meter.
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+1. Everyone has a $500 phone which they paid at least $200 for. You can go on eBay and order two generic 1600mah batteries from China for $10 shipped with an extra wall charges that charges your phone via the USB cable and one of the batteries at the same time. Problem solved.
I know what people are going to start to say: "Those batteries aren't as good as the OEM ones." Well, does it really matter? I've gotten over 12 hours of moderate use on a generic battery and I'm OC'd. Charge the batteries and keep them in your car since your car is going to be where ever you are. It is much more inconvenient to have to have your phone on a charger all the time than it is to swap batteries.
i'm surprised that this is such a well known issue yet nobody has provided a fix for it.
if i'm correct when the phone is off it charges, but not when it's in recovery. so couldn't there be a kernel/software patch that would charge to 99% then put the phone into "recovery mode" so to speak so it would stop charging, essentially never letting it get to 100%?
doing that is beyond me, but with what i've seen done here this seems like a piece of cake for some of our devs?
still dont see why poeple call it a "problem" , its been explained that its not a problem many times
It all depends on how long it's on the charger after it hits the 100% mark. Basically, as long as it's on the charger, it will hit 100% and then the display will stay there. However, the charger actually charges to 100%, then waits until it falls back down to 90%, then starts charging again ad infinitum. So if it's been on the charger awhile after hitting 100%, it may very well be closer to 90% in reality.
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jonnythan said:
Some of you guys are putting way too much stock into small movements of the battery meter.
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Its like the fps, 55fps is good but 60 "feels" so much better so why not go for 60?
And really, this was just a thought. I have 3 batteries, but on days where its raining and I have to catch the bus...I'd rather not have them on me.
Don't charge your phone overnight! When it gets really low, slap it on the charger for a couple hours until you've got 85-90%. Unplug and enjoy fantastic battery life. I have gotten about double normal battery life (approximately 48 hours) using this method. I'm on CM6.1, mind you, so it may be some quirk with the ROM.
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Sent from my HTC Supersonic using Tapatalk Pro.
Ive been saying this for a while. I charge up my phone to about 96% and i let it go till almost 5% before i throw it back on the charge. That usually gives me 12 to 18 hours. A lot of people tend to get "battery panic" and throw it on soon as they see it draining a bit. Just leave it alone.
I charge on a wall charger. I have three batteries and change daily. I get 22-24 hours and 5-6 hours of hard use.
Sent from my PC36100 using XDA App
Here are my observations:
The Evo seems to have a peculiar way of using external power. Once the battery reaches full-charge the external power apparently gets shut off and the phone operates on battery power until the battery level drops to somewhere around 85-90%. Then the charging current switches back on until the battery level reaches 100% again and the process repeats itself. This differs from more conventional scenarios where the phone actually runs on the external power (rather than the battery) once the battery reaches full charge.
I came to this conclusion while playing with my Evo while it was plugged into the charger. First I noticed that the charging light would cycle from green to amber and back every so often. Then I noticed that the battery level indicator would drop even while the charger was plugged in.
So I started checking my battery level in the morning before I removed the phone from the charging dock and discovered that it was rarely at 100%. I'm convinced that the phone does get charged to 100% when I put it on the charging cradle, but then it sits there running off of the battery until it drops to that magic ~85-90% level and the charging current is reestablished.
But a typical night on the charger isn't enough time for the battery level to drop enough to re-start the charging current and if I come along and just grab the phone, I'm starting my day with a battery which isn't completely charged. In my case, the only time this doesn't happen is if my day ends real late and the next morning starts real early.
Once I had a good idea of what was going on, coming up with a work-around was simple: One of the first things I do when I get up in the morning is look at the charging indicator on the phone. If it's amber I do nothing because the phone is already in charging mode. If it's green I remove the phone from the cradle for a moment and put it right back on. Most of the time the indicator will switch from green to amber when I do that, but if it doesn't I'll go online and read the news or something for a few minutes before I put the phone back on the cradle.
Either way, the phone will then charge for 30 minutes or less before the indicator goes green again. By then I'm done with my morning routine and ready to face the day, and when I grab the phone it's fully charged.
My Evo is out-of-the-box stock (for now). It's a hardware version 0003 and has firmware v. 3.29.651.5. I typically leave my Bluetooth turned on all the time, but I leave 4G, WIFI, and the GPS turned off unless I need 'em. My typical daily routine involves several phone calls, some email downloads and uploads, some incidental web browsing, and some geocaching if a new cache is published within a few miles. As long as I stick with that typical routine, my battery is always in the 40-50% range when I put the phone back into the cradle for the night. Of course if I use the phone more it discharges the battery more, but I'm set up to charge it at home, at work, and in the car.
Now despite everything I've posted here, I can't imagine any practical reason to not top off the battery whenever it's convenient. Letting the battery run down before you charge it doesn't have any effect on how long a full charge will run the phone. In fact, it will actually reduce the number of charge-discharge cycles that your battery can provide before it starts losing capacity. I don't want to type it all again, but if you're interested you can CLICK HERE if you'd like to learn more about LiPo battery characteristics and maintenance.
'Nuff outta me
Pete
the evo charges to 100% then cycles to 90% then back to 100% so that it does not explode from over heating thats why when you grab your phone in the morning it might say 93% rather than 100% i dont mind though cause i dont want my phone to blow up
ThatTmoGuy said:
the evo charges to 100% then cycles to 90% then back to 100% so that it does not explode from over heating thats why when you grab your phone in the morning it might say 93% rather than 100% i dont mind though cause i dont want my phone to blow up
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I'm a lot more inclined to believe that it's either an engineering error or a half-baked idea with undesirable consequences. The reason I say that is I've had countless other cell phones and consumer electronics devices which used LiPo batteries for power, yet the Evo is the first device that I'm aware of which operates like that. The rest will stop charging when the batteries are fully charged, but they'll continue to use the external power to run the device as long as it's plugged in.
Pete
PGRtoo said:
I'm a lot more inclined to believe that it's either an engineering error or a half-baked idea with undesirable consequences. The reason I say that is I've had countless other cell phones and consumer electronics devices which used LiPo batteries for power, yet the Evo is the first device that I'm aware of which operates like that. The rest will stop charging when the batteries are fully charged, but they'll continue to use the external power to run the device as long as it's plugged in.
Pete
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I think the purpose is to prolong the battery life so it doesn't charge again every time it drops to 99%.
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Sent from my HTC Supersonic using Tapatalk Pro.
TheBiles said:
I think the purpose is to prolong the battery life so it doesn't charge again every time it drops to 99%.
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Apparently my point is just blowing right past everyone.
For most modern consumer electronics devices the charger can serve at least two functions which are charge the battery and run the device. These functions are remotely related by virtue of the fact that the power comes from the same source, but the functions themselves are typically quite independent of each other. In other words, most devices can run off the charger's power regardless of whether the battery is being charged or not, and when the device is running on the charger, it's not drawing power from the battery.
But it appears that the Evo doesn't do things that way. In essence, it seems like the Evo is hard-wired to the battery and the charger is incapable of independently powering the device when it's not charging the battery. So the battery reaches full charge, the charging circuit shuts off, and the phone starts draining the battery despite the fact that the charger is still connected. Once the battery drains to ~85-90% the charging circuit kicks back on, the battery gets charged back to 100%, and the whole process repeats itself.
Consequently it's a crapshoot whether our Evos will be fully-charged when we take them off of the charger unless we take some additional steps. I can deal with those extra steps, but I can't come up with any practical reason why we should have to. No matter how long I analyze the situation, I can't see any benefit to doing things that way except, perhaps, to save on manufacturing costs. All I can come up with are annoying extra steps and unnecessary battery charge-discharge cycles, and I can't grasp how those benefit anyone.
I see that you and I have carried some of the same phones in the past, TheBiles (Sanyo 8300, Treo 650, Hero) and I don't remember any of those phones coming off a charger with anything less than a full charge unless I interrupted the charge cycle. In fact, I'm convinced that no phone that I've ever carried has had this problem. The Evo is the very first one which is why I suspect some folks at HTC are quietly saying oopsie.
Pete
Sent from my PC36100 using XDA App
Pete, I'm not convinced most smart phones actually power themselves off of the wallcharger when plugged in as you seem to think. I have no real evidence to back this up, though - other than my own observations.
I will say that the EVO's method isn't as isolated as you seem to think. For example, the Palm Pre which I owned for a year previous to the EVO operates in the exact same manner.
The Pre would hit 100%, stop charging, operate on battery power until it dropped to 95%, then charge from 95 back to 100. The EVO, however, drops down to 90 before it starts the charge cycle again. This is probably better for the battery - but more confusing from a user perspective.
This might be your first phone that operates this way, but it certainly isn't unique to smartphones or HTC.
PGRtoo said:
Apparently my point is just blowing right past everyone.
For most modern consumer electronics devices the charger can serve at least two functions which are charge the battery and run the device. These functions are remotely related by virtue of the fact that the power comes from the same source, but the functions themselves are typically quite independent of each other. In other words, most devices can run off the charger's power regardless of whether the battery is being charged or not, and when the device is running on the charger, it's not drawing power from the battery.
But it appears that the Evo doesn't do things that way. In essence, it seems like the Evo is hard-wired to the battery and the charger is incapable of independently powering the device when it's not charging the battery. So the battery reaches full charge, the charging circuit shuts off, and the phone starts draining the battery despite the fact that the charger is still connected. Once the battery drains to ~85-90% the charging circuit kicks back on, the battery gets charged back to 100%, and the whole process repeats itself.
Consequently it's a crapshoot whether our Evos will be fully-charged when we take them off of the charger unless we take some additional steps. I can deal with those extra steps, but I can't come up with any practical reason why we should have to. No matter how long I analyze the situation, I can't see any benefit to doing things that way except, perhaps, to save on manufacturing costs. All I can come up with are annoying extra steps and unnecessary battery charge-discharge cycles, and I can't grasp how those benefit anyone.
I see that you and I have carried some of the same phones in the past, TheBiles (Sanyo 8300, Treo 650, Hero) and I don't remember any of those phones coming off a charger with anything less than a full charge unless I interrupted the charge cycle. In fact, I'm convinced that no phone that I've ever carried has had this problem. The Evo is the very first one which is why I suspect some folks at HTC are quietly saying oopsie.
Pete
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I completely agree. This is clearly going on, and I'm surprised more people don't talk about it. I put Cyanogen on mine the day I got it, so I thought that was the issue, but I went back to stock (for a day) and it did the same thing. The light goes off after 90% and it stops charging at 100% until it drops below 90%. I also agree that it doesn't seem to serve a usable purpose, and seems to be a design flaw.
I'm still very happy with the phone, but when battery life is this important, that's kind of a big deal.
BHack said:
Pete, I'm not convinced most smart phones actually power themselves off of the wallcharger when plugged in as you seem to think. I have no real evidence to back this up, though - other than my own observations.
I will say that the EVO's method isn't as isolated as you seem to think. For example, the Palm Pre which I owned for a year previous to the EVO operates in the exact same manner.
The Pre would hit 100%, stop charging, operate on battery power until it dropped to 95%, then charge from 95 back to 100. The EVO, however, drops down to 90 before it starts the charge cycle again. This is probably better for the battery - but more confusing from a user perspective.
This might be your first phone that operates this way, but it certainly isn't unique to smartphones or HTC.
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Click to collapse
I had two Pres, and both had the battery % mod on them. I used to set them on my touchstone at work all day long, and I would take them off periodically. My battery drained so bad I could lose 30% in an hour with light use. If I ever took it off the touchstone when it wasn't at 100%, it was only because it got too low and wasn't at 100% yet. I noticed this on day one with my EVO, and never noticed a single issue anything like this on my Pre.
I'm not saying it wasn't there, I'm saying I NEVER noticed this. As far as I knew, it charged to 100% and then ran off the plug, or at least that's what I assumed.
this is a strange thread for xda; competent, fully formed sentences. civilized banter. it's nice!
on topic though, i have noticed and came to this conclusion independently a couple months ago. it's kind of irritating - i hate how cheap manufacturers can be sometimes (all the time).
turn said:
this is a strange thread for xda; competent, fully formed sentences. civilized banter. it's nice!
on topic though, i have noticed and came to this conclusion independently a couple months ago. it's kind of irritating - i hate how cheap manufacturers can be sometimes (all the time).
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Hey, I've seen MUCH worse forums. Try Anandtech sometimes. Some great threads there, and a ton of awful.
I feel like HTC is just not that company that cuts corners. I think this might have been a real attempt to make something work well - or better - but in my opinion it failed miserably.
WrlsFanatic said:
I had two Pres, and both had the battery % mod on them. I used to set them on my touchstone at work all day long, and I would take them off periodically. My battery drained so bad I could lose 30% in an hour with light use. If I ever took it off the touchstone when it wasn't at 100%, it was only because it got too low and wasn't at 100% yet. I noticed this on day one with my EVO, and never noticed a single issue anything like this on my Pre.
I'm not saying it wasn't there, I'm saying I NEVER noticed this. As far as I knew, it charged to 100% and then ran off the plug, or at least that's what I assumed.
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You may not have noticed it, but I can guarantee you the Pre charged as I described. It was a "crapshoot" when you pulled it off the charger as to where you actually were in the charge. You could be anywhere from 95 - 100. Of course, the Pre would always show 100%, just as the EVO does.
Because the Pre's battery was smaller, WebOS was more battery hungry than Android, and the fact that it only cycled down to 95 instead of 90 like the EVO are all reasons why you might not have noticed it, but it was there.
BHack said:
This is probably better for the battery - but more confusing from a user perspective.
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Why would it be better for the battery? They may be partial charge-discharge cycles but they're cycles nonetheless and the Lithium Polymer cell chemistry is only capable of so many of 'em before it starts to degrade. Short cycles are easier on it than full cycles, but they all take a toll.
I currently have something like 40 LiPo packs that range from dinky little 35mAh single-cell micro batteries to a couple of 10S (37V) 5000mAh packs. I use them in my R/C planes and helicopters, communications gear, and electronics projects and I've used up and disposed of many times that over the years. I even had to build my own packs and chargers when I first started using them because the cells were experimental and there wasn't anything commercially available yet.
And I survived all that without having a single LiPo fire (that I didn't deliberately trigger) and I attribute that to the fact that I've been rabid about learning everything I can about the technology and the use and care of the batteries.
And I'm unaware of any benefit that can be gained from unnecessarily cycling LiPo batteries regardless of how small the cycles are.
Pete
WrlsFanatic said:
I feel like HTC is just not that company that cuts corners. I think this might have been a real attempt to make something work well - or better - but in my opinion it failed miserably.
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My predominant theory is that HTC has erred on the side of caution on the advice of their legal department. LiPo cells can easily become little firebombs if they're mistreated and the overwhelming majority of "events" occur during a charge cycle. Search YouTube for lipo fire and you'll find pages and pages of examples, but beware:
You may not want to carry yer phone in yer pocket right next to yer cojones anymore after you do.
Pete
Having the wall battery charger solves this issue. The wall charger will charge the battery to full capacity.
It also allows me to test battery life on roms/kernels as accurately as possible. Only time I connect the phone to USB is when I need to move files.
Bioxoxide said:
Having the wall battery charger solves this issue.
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When you say wall charger, do you mean one that you have to remove the battery from the phone and insert it in the charger?
Pete the Curious
Just wanted to say that there have been many discussions on this here at xda, I guess most of us just deal with it.
What I do is charge externaly with a cheap Chinese charger that Came with two batteries that work great.
Every since I made this move I haven't looked back. My battery life is great now, 24 plus hrs per charge. Sometimes I go close to 40 hrs, and I use Bluetooth, have GPS and WiFi ways on. In fact I don't cut any corners, no under clocking either.
Sent from my PC36100 using XDA App
Hi guys,
Does anyone have any idea to this WEIRD issue I've had with my Desire Z?
Basically, my phone was working normally last night. I then put my phone on to charge as normal before I went to bed, and I left it on the bed. About 5-6 hours later (I had to get up early today...) I turned over and touched the back of the phone and woke up shocked, as the back of the phone BURNED me! I got very confused and looked at the phone. It was VERY hot to hold, and it was on 42% battery. I then took the battery out, and it was almost hot enough to burn me. I left the battery out of the phone until I got up properly and tried turning it back on, and it got very hot, very fast.
I figured it could be a problem with the 1800 mAh Mugen battery I was using, so I decided to put my old stock HTC battery in. I got the same problem.
It seems to have got slightly better now, but I can only really use the phone in 5-10 minute bursts now. When the phone has booted up the battery will report around 36 degrees. After 5-10 minutes it sails up to about 50 degrees before I turn it off. The battery also drops off fast between reboots, losing around 10% each time I reboot (however, it doesn't seem to drop that fast when I'm actually using the phone...).
I am rooted and using Cyanogen Mod 7, and I recently flashed to the 151 nightly. I tried flashing to some of the earlier nightlies I still had on the phone, but the issue is exactly the same.
I did have the phone in the bootloader for a while (volume down+trackball), and it didn't seem to overheat. However, when I tried charging the phone with the device off the battery seemed to get VERY hot (way more hot than normal).
Luckily I can still back up anything I need to back up, and I am going to start doing wipes soon (assuming the phone doesn't overheat while wiping, which worries me!), but I am very confused!
I'm thinking that some sort of short circuit has happened, or something?
Does anyone have any ideas? If it's a definite hardware problem I can get a replacement fairly easily, but I do love my Z, so it's the last thing I want to do...
Very lucky my dad has a Samsung Galaxy Tab I can borrow as a phone for now. It will be fun for a day or two having a 7" tablet as a phone, but it will get old fast!
Thanks a lot, all!
Edit: I think it's had it. I tried using another charger and another USB cable and leaving it charge for a bit. When I came back after about 15 mins, again the phone was very hot, and the indicator light was flashing green and orange. When I tried to boot the phone it was dead. When I plugged it back in the indicator light would flash orange on and off for a while, then start blinking weirdly. Lucky my mugen battery still has about 15% charge... xD
http://support.t-mobile.com/thread/2710?start=75&tstart=0
It's *possibly* this problem.
My phone does the same thing, gets SUPER hot when charging, and has extremely short battery life.
Mine's not charging at all now, so I'm not even sure what to do at all :/
If I use the phone a lil and my Mugen battery dies, I won't be able to turn it on at all, so I'm not sure whether to start wiping and stuff now...
General consensus is to not leave the phone to charge overnight?
not with today's technology. all batteries (atleast good ones) have an internal circuit that keeps the battery from over charging. it also provides a method to maintain the charge by letting the phone drain some battery over the night by 5-10% then performing a trickle charge to slowly (very slowly) recharge the battery.
I've been leaving my stuff charging overnight for over a decade. It's not as bad as you think it is.