[rkin92]

SO what is your battery life?

Mine looks to be a drain of 4% every hour or so... Wondering if that is the norm.

[Smyrna5]

According to my battery app, I normally run about 8%/hr. I tend to put my screen on bright a lot and don't let it automatically dim though. I also mostly use WiFi.

[rkin92]

I have both the cellular radio and wifi on at the same time :S I do it because I guess the phone cant recieve MMS when the radio is off?

[Corepc]

About the same for me - I can go about 8 hours under Heavy Internet Usage (Internet Sharing to PC), today it been light - right now 75% been on for 10 hours. 4g connection (email has item arrive, wpcentral only things running in background)

[mogelijk]

Unless you have WiFi calling on, you can't get phone calls with the cellular radio off. If you do have WiFi calling on, you can't receive MMS (from what I recall of Gen3 WiFi calling on T-Mobile).

[jagu]

updated my Lumia 521 for T-Mobile on Aug 15th and although the update made things faster and brought some cool features like call blocking the phone is practically useless now. It dies in like 4 hours no matter if i use or if its in idle it dies within like 6 hours or so. I already have charged the phone 3 or 4 times now already and its on the 5th time. I know the battery cycle needs to get used to it but damn i never expected it to be this bad!

[Shawn Magm]

I have a 520 (AT&T) with the Amber update and GDR2. Although I realize that it's not a 521, but it likely has very similar performance. I have 4G data, wifi on, bluetooth on, medium setting on screen brightness, double tap to wake and my battery drain on standby is about 2%/hr. I don't do a lot of heavy activity such as gaming, youtube or websurfing.

[FalconFour]

A brick. Something to the tune of 25% drop per hour in standby. Yes, this is actually happening.

Here's the full writeup. I've already got a warranty replacement on the way for issues before the GDR2 update last night (which that update seems to have resolved), that even survived a hard reset.

Attached are the droolworthy screenshots from Battery Sense.

[FalconFour]

Well, things have definitely improved today, pretty much back to normal, after doing another hard reset post-update.



Now, though, I still have a problem with the phone coming unlocked in my pocket, doing all sorts of un-cool things while it should be asleep. At least three times today, I've pulled out my phone to find it unlocked, and several levels deep into a series of searches, messages, and settings pages! I found that I can bypass the lock screen by briefly holding the search button, which is a problem if the phone wakes up due to a plug/unplug event - in my pocket, charging, sometimes waking up due to thinking the cable was plugged or unplugged. It comes unlocked way too easily.

But other than that, at least it's back to "normal" again...

[Gunbust3r]

I'm having terrible battery life too post GDR2. Phone died at around 3:00 PM on Saturday while I was out...

[BrandonCormier]

My battery life is actually better now after the GDR2 update. My battery app says 5.5% per hour.

[KitN]

My battery life? Crappy and crappier.

I really hate the way Nokia put that wimpy, skinny-*** battery in and stuck a cushion sticker on there to take up space for the larger battery that was supposed to be in there just to save themselves a few pennies. :rolleyes:
Sent from my Nokia Lumia 521

[WanderingTraveler]

My battery life? Crappy and crappier.

I really hate the way Nokia put that wimpy, skinny-*** battery in and stuck a cushion sticker on there to take up space for the larger battery that was supposed to be in there just to save themselves a few pennies. :rolleyes:
Sent from my Nokia Lumia 521

That's because there isn't a BL-6J. Well, at least you can buy backups, like what I've been doing. In my case, "borrowing" from my parents, with their Asha 200s.

[rkin92]

That's because there isn't a BL-6J. Well, at least you can buy backups, like what I've been doing. In my case, "borrowing" from my parents, with their Asha 200s.

Brings me to a question... Where does one get a legit battery for the 521? I see the cheap ones all the time but no OEM ones.

[WanderingTraveler]

Brings me to a question... Where does one get a legit battery for the 521? I see the cheap ones all the time but no OEM ones.

In my case, I can just walk to a nearby Nokia Store, but you're out of luck.

As far as I know, there are some on Amazon and Ebay, as well as on Expansys.

[KitN]

Don't use anything but official Nokia batteries just to be safe...
Sent from my Nokia Lumia 521

[kmoc777]

Updated 3 521's since the update was released (mine, my wife's and daughter's). The battery life on 2 is much better since the update. I don't have the stats, but prior to the update, my phone would be in the 30 - 40% range when I got home from work. Yesterday, it was at 77% at the same time of day and having used the phone in a "typical" fashion. My wife reports her battery life has also improved dramatically since the update. I have not inquired as to my daughter's phone, but she has not reported any negatives since the update.