Nokia Lumia 1020 battery problems?

[thelostsoul]

Yeah, alot of those random jumpings has to do with what you charged it with,

That can only hold somewhat true. Here's what to make sure of:
Check the Voltage and Amperage ratings on the charger. If it was previously for a phone, voltage is unlikely an issue. If the Amperage is over 2A, don't use it (well, expect that it will charge your phone quickly, but will also degrade the battery's life and cause a lot of heat). If it's less than 750mA, it will likely take a long time to charge, but is actually better for the battery.
Make sure the charger is not a cheap piece of trash. If it feels extremely flimsy and you are having problems with it charging your phone, chances are, it's a bad charger and is damaging your device/battery. You should stop using it immediately and get a new charger.

I have used Blackberry chargers on all my phones since my N8 (N8, then 808, than 920, now 1020) and I've no reason to blame the chargers for any issues. Never had issues with my N8 or 808's battery, only when I started using WP8, and only sometimes (even though I always use the same charger).

The software is looking for a voltage, usually around 3.1-4.2 V. The voltage drops based on the charge of the battery. Batteries do not follow a linear discharge on this value, and the exact maximum and minimum voltages of the battery vary from battery to battery, and phone to phone. The calculations for percentage of charge that your phone displays are a lot more complicated than saying 4.19 is 99% of 4.2V maximum. There's a good deal of code trying to calculate what percentage the battery is actually currently reading, such as last time, it topped off at 4.187V, so now that's 100%. I died at 3.02V last, so that's now 0%. In order to do that, the phone needs some history of the device. Plus, if max is currently at 4, and minimum is at 3, 50% will not likely be at 3.5. The battery will die faster as it discharges, so 50% is going to be closer to 3.6 or so, and 10% will be closer to 3.2 instead of 3.1. All of this means that if there's a time when you've suddenly used excessive power, if the sensors get one erroneous reading, if you use too fast of a charger, etc, etc. then may cause an error in the calculation until it attempts to recalibrate. When you restart you phone, it restarts that calculation.

Also, this is why draining you phone until it dies and then fully recharging it seems to help your battery life. That's only because it now has a fully calibrated battery. Unfortunately, a battery with zero charge is going to degrade (chemistry explanation for another time, and probably from another person). Fortunately, your phone will likely shut off before then, and even if it doesn't, the battery will stop giving a charge (it will read 0V) until a voltage is applied to it due to safety circuits. That said, it's still a bad idea to drain your battery completely. Ever hear of manufacturers having issues getting devices to start after the battery is completely dead? Usually(/sometimes) it's related to this.

EDIT: Please keep in mind that the numbers I've mentioned in here are arbitrary to make a point. They are not calculated, nor are they samples.

 

[reconrevelations]

Idk wtf was goin on today, it was constantly not updating the battery percentage, I soft deserted it which would make it lose 10% then reboot and it would gain 5% back and I did it all day, put on a case n kept going, took the case off then charged it in the wall and it was fixed, idk wtf happened but it was freaky

 

[reconrevelations]

I've decided that as long as I can last the day without charging I'm fine, I listened over an hour of music and playing this awesome game (contre jour- WHICH I EXTREMELY RECOMMEND BTW) as well, texted alot, instagrammed and face booked xD wasted about 15% total

 

[Victor Tribal]

I had the same problem Lumia 1020 RM875 international version,also N8,problem with draining battery fast went away on both phones when i disabled mobile data and wifi and only turned them on when i need to go online

 

[reconrevelations]

my phones been fine, I turned the battery saver to only turn on when under 20% and tbh it has longer battery (in my experience) then when set to always...

 

[reconrevelations]

The Lumia black update is really cool, nothing too huge bit it still adds some cool stuff if you can find out what, update 3 is just as cool, I'm really loving the closing if apps without having to press the back button a thousand times xD other features are cool, I like the orientation lock and the new colors for the glance screen!(notifications)

 

[T1Cybernetic]

The Lumia black update is really cool, nothing too huge bit it still adds some cool stuff if you can find out what, update 3 is just as cool, I'm really loving the closing if apps without having to press the back button a thousand times xD other features are cool, I like the orientation lock and the new colors for the glance screen!(notifications)

I can't wait to get updated now as I really hate having to press back a thousand times, Closing apps is the future !!!

 

[Paritosh Rai]

I am still unsure of my 1020's battery's performance. I have the following usage pattern:-
1.) Whatsapp - 25-30 minutes daily (however it is disabled in the "background tasks")
2.) 1-1.5 hours of calling
3.) Bing Weather, Lockmix running in background
4.) 1 outlook mailbox synced to update "as items arrive", 2 linked gmail inboxes set to update every 2 hours
5.) Glance set to peek and 'double tap to wake' on
6.) 30 minutes of browsing on wpcentral, espncricinfo
7.) Bluetooth/NFC/location off the entire time, Wi-fi used for 1-1.5 hours daily
8.)Temple Run2 - 15-20 minutes daily

I get close to 13-14 hours of battery life in one single full recharge. What I see is that the battery doesn't deplete that much when it is in the 95-100% range, but it goes for a nosedive after that. Even after, let's say, using it for 20 minutes and then keeping it idle, the battery depletes at 4.5-5% per hour. I am on Vodafone 3G in India, with data always on. I do not see any drain when I turn off 'data', and leave the phone idle. I just want to understand if this acceptable battery performance. Can you guys comment?

Oh and btw, I am still on Amber; no GDR3+Black roll out in India

Thanks!

 

[Janda45]

Just received my 1020 yesterday. Battery 'iffy' and drained quickly. Charged all night figuring I'd be fine. Light use most of the morning and noticed my battery only had 40% charge remaining! Decided to let it drain out before charging again. Now it's been at 28% for the last five hours but the 'estimated hours remaining' has increased from 4 hours to 11 hours? I think some settling in is occurring but who knows...

 

[Janda45]

Just received my 1020 yesterday. Battery 'iffy' and drained quickly. Charged all night figuring I'd be fine. Light use most of the morning and noticed my battery only had 40% charge remaining! Decided to let it drain out before charging again. Now it's been at 28% for the last five hours but the 'estimated hours remaining' has increased from 4 hours to 11 hours? I think some settling in is occurring but who knows...

It's now 10AM the next day and I haven't charged my 1020. Still have 10% or estimated several hours left on the battery - says 7 hours but who knows. Normal usage, updating, surfing, emails, a few calls. I think the battery life is good but my indicator displays that my power is lower than it must be or when fully charged the battery will last for a week or more!

 

[nynamyna]

Hello all,

After following this thread for a while, I decided to send my device to nokia for warranty repair. I just got the following email from them

Your device is ready !
Thanks for sending us your Nokia device for service. Good news! We gave your device a thorough
inspection and we were able to correct the problem.

Here’s what you told us was wrong : The battery drains very fast. I charge it to 100% but it drains almost in half a day. I tried disabling all
the apps and background tasks but nothing worked. I also followed all the steps mentioned in nokia

Here’s what we did to fix it :
• Passed Software Update
• Passed Complete Functional test
• Passed Complete RF Test
• Passed Quality Inspection

After repair, your unit passed a series of tests and an inspection to make sure everything was
working normally.


So does it mean that they juyst did the inspection and sent it back? Let me know if any of you had this experience before.

Thanks,
VJ

 

[Janda45]

I fully charged my battery last night before bed. Didn't use it a bit since confirming 100% charge. I have read every thread on the battery life and every article I can find. I have my phone turned to minimal usage overnight and during the day unless I need the functionality. Battery drained nearly 7% in seven hours of no use whatsoever. Does this sound right to anyone? I'm disliking that if I actually used my phone heavily the battery would be dead by noon.

 

[DrNitun]

Janda45,

That drain above, I am guessing is normal. Hell, I drain for 8% every hour and then periodically 14% (without really using the phone). I wish I had your drain!

 

[Janda45]

Well, after reading more and more conflicting and confusing posts regarding battery life expectancy and life I decided to just charge it when it hits 30% or 40% battery life remaining. I turn off Bluetooth and use Wifi when available. I do not turn it off when I'm not using the phone. My battery seems to be doing better. I'm going about 24 hours on a charge and have anywhere from 15% to 30% remaining after a good days use defined as 15 to 20 minutes talk time, 20 or 30 emails read and responded to, a dozen text messages, music for 1 to 2 hours, and on occasion a few pictures. I'd say that's my average use and that I'd call it light. Heavier days obviously drain it faster.

It's a great phone and I enjoy WP8's system. Don't miss iTunes at all. Don't miss the iPhone at all. This is just more enjoyable and is much 'cooler'. Enjoy!

 

[DrNitun]

Hello,

I will start to recharge phone once it gets down to ~40-50% and try it out. However, I do have my 2nd replacement 1020 on the way via AT&T warranty just in case.

 

[w00cash1020]

I just lost over 50% battery in just under 2 hours with just wifi on and phone mostly on standby. At around 18:30 I had about 85% and now 28%... Wth...

Sent from my Nexus 7 using Tapatalk

 

[reconrevelations]

@everybody in back sorry, if you want to get your battery better, disable all background tasks and everything you can possibly, up to 5 charges, if its still bad return it, never deplete your battery to zero, once it passes the 15% then by all means start charging. Tip for over charging, never overcharge it over night, charge doesnt seem to last as long as other times when I remove it once it hits 100%, I just survived 6 days o, a charge with barely any usage besides a bunch of 6tag, and when I recharged it this morning, I've got it down to 20% in less then 9 hours, just from going to my other parents house in the middle of the country, that is a big deal, this always happens to me, if you have little signal, turn your data off or the speed Down, 4g definitely doesnt kill in a low signal area as much as LTE, try these tips and get back to me.

 

[reconrevelations]

You guys can also try restarting your phone or resetting it, some of the time it can be simple software issues that can be fixed with a soft, or hard reset (soft is basically a restart, hard is a factory settings reset) also guys, WiFi tends to use more battery IF you're on the internet, in standby it seems to use almost none per hour, also guys I use my phones camera like a daily DSLR, I use it almost hourly and it did start off bad but got used to it, sometimes it just takes time to get better, mine definitely did.

 

[atherosxd]

mine is great when standby even with data on but whenever I use twitter/fb/6tag/mytube. I can get a 40+%/hr discharge. just last night I got a 44%/hr discharge rate.

 

[ayejay0601]

Two suggestions, let it drain all the way until it is completely drained. This will "reset" the battery meter---sometimes it needs to be recalibrated. 2) reset the device to factory default. other than that, get a new phone. I bought the phone 3 weeks ago and had incredible battery life--getting 30-40 hrs with moderate use. Then the speaker stopped working and I exchanged the phone. The new phone for some reason doesnt have the same battery life--i get closer to 20-25 hrs with moderate use (still not bad I guess). No idea why, but i would guess its a software and not a hardware issue.