[Q] battery calibration - T-Mobile Samsung Galaxy S II SGH-T989

Say I were to but an extended battery, would you recommend calibrating it ever? If so from which method, clock work mod recovery or android app?
Sent from my SGH-T989 using xda premium

Same Question
Im also interested inknowing the answer to this question. Thanks in advance!

I am on my 5th charge on my Laza 3800 mAh extended battery (and case) and they are a perfect fit. I never calibrated it and it's fine. With the stock OEM battery, I have to recharge it around noon everyday and now it last easily a day or 2. The only thing is that even though it claimed to have NFC but it did not seem to work, but I don't use it anyway.

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[Q] Verizon Nexus Extended Battery - Help

I have recently purchased the Verizon Samsung Extended Battery for both my phone and my wife's. It is supposed to have a capacity of 2100Mah.
However, using the app, Battery Monitor Widget, the app is reading the capacity of both batteries at 1750Mah on both my phone and my wife's phone.
Is this a fault of the app? Can it be possible that both batteries are bad?
If this is all the capacity I am going to get, I might as well go back to stock and get my money back. I just don't want to wait too long and be outside of the return policy from the Verizon store.
Thanks
Reset the battery stats.
Sent from my Galaxy Nexus using XDA
Hydera5 said:
Reset the battery stats.
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
No.
Battery stats have NO effect on the percentage or MaH being read.
That being said, I haven't personally tested my extended via that app...or others.
But I generally get JUST A BIT more juice out of the extended.
I'd say it's worth it...especially if you're (obviously) wanting that extra juice...you can just swap mid-day if need be.
fit4ugolf said:
Is this a fault of the app?
Click to expand...
Click to collapse
Yes, but it's still a good app.
perhaps you can use the program to compare both batteries directly.
player911 said:
perhaps you can use the program to compare both batteries directly.
Click to expand...
Click to collapse
I will install the stock battery tonight when I get home, measure it, and report back.
fit4ugolf said:
I will install the stock battery tonight when I get home, measure it, and report back.
Click to expand...
Click to collapse
So the stock battery showed up as 1750 as well. I then did some research using the app's help section. I found out you can do a calibration during charge that will determine the actual mah of the battery.
So I ran my battery down to 17%, then turned on the calibration and plugged my phone in. This morning when I looked at the app, it showed by extended battery actual mah as 2022 after the calibration test.
I read a little more, if I run it down to 1 or 2%, it will give a more accurate mah. Therefore, my test for tonight is to drain my battery then run the calibration overnight again.
I will report back my test results tomorrow.

My opinion about a 4000 mAh mugen battery

Hello guys, I would like to tell you my opinion about a battery that I had the chance to try. I'm talking about a battery produced by Mugen for Samsung Galaxy Nexus, with a capacity of 4000 mAh (more than double of normal rate).
Usually I'm used to use the smartphone with many apps in the background (WhatsApp, Dropbox, Beautiful widget and many other) and i often run games, especially in down time of the day. Im also linked to a carrier that has only 3G. Before attempting the battery I used to utilize three batteries so i can change eachother when the current one is downloaded.
With the Mugen's 4000 mAh battery i have found no problems to arrive safely at the end of the day, even when I spend hours playing.
In addition, the cover included in the package greatly improves the grip (im serius!).
I've tried it for 5-6 days but if you want to get more details, statistics and screenshots you can view this video review (in Italian)
You can buy it from www.mugen-power-batteries.com
Does this battery maintain NFC ability? I've seen some extended batteries that don't and some that do.
Thanks.
Sent from my Galaxy Nexus using xda premium
Glad to see you got through the day. I bought a cheap 3800mah battery off ebay for my nexus and I don't think it did any better than the 2100mah extended battery. :-/
That pop out stand seems useful too.
KRJ_87 said:
Does this battery maintain NFC ability? I've seen some extended batteries that don't and some that do.
Thanks.
Sent from my Galaxy Nexus using xda premium
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Would like to know this also please. I would like to invest in a battery either as replacement or backup but would like to keep nfc so my phone can have sex with the sgs 3
Sent from my GNex
DriveEuro said:
Glad to see you got through the day. I bought a cheap 3800mah battery off ebay for my nexus and I don't think it did any better than the 2100mah extended battery. :-/
That pop out stand seems useful too.
Click to expand...
Click to collapse
bah...i just did the same thing, though i still dont have either the battery or the phone yet. i'll report back when i get both.
I have used the Seidio extended batteries since my Dinc days and I love them. The 3800 monster for gnex does have nfc and it'll last for days with my SlimICS rom.highly recommended. The casing leaves a lot to be desired but its totally worth it for me for battery life.
Sent from my Galaxy Nexus using Tapatalk 2
mk_ln said:
bah...i just did the same thing, though i still dont have either the battery or the phone yet. i'll report back when i get both.
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Click to collapse
You get what you pay for... :-/
I just wanted to believe it was better... but my Screen On time was no better than extended OEM.
DriveEuro said:
You get what you pay for... :-/
I just wanted to believe it was better... but my Screen On time was no better than extended OEM.
Click to expand...
Click to collapse
sometimes you get better than what you pay for . I recall getting a cheap 1800mah battery for my i9000 and it definitely lasted longer than the OEM one.
dr.m0x said:
Would like to know this also please. I would like to invest in a battery either as replacement or backup but would like to keep nfc so my phone can have sex with the sgs 3
Sent from my GNex
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Click to collapse
The Mugen Power 4000 Mah supports NFC. A larger backcover is included.
The back cover has a kick-stand, this is great for watching video's.
The only disadvantage with the new backcover is that you cannot change backcovers too often. This is due to the vurnable "holding pins"
I have my 4000 Mah for about a month now, and it is awesome! The battery lasts 2,5 day's with heavy usage. Now I just have to find a way to cut out the back of my cardock in a proper way to fit the larger backcover.
Sorry for late reply! The battery is NFC compatible, i've tested it with another phone and it works!
It can totally replace the original battery

Extended Battery Performance

Hey guys.
Picked up myself an extended battery (official 2000mah) last week and so far, I'm getting worse or just the same performance as my old 1750mah.... anyone have different outcomes?
I know batts need a slight 'wear in' time but its been a good 5-7 charge cycles.
Do I need to change a setting or something to let the phone know its got a larger battery or something?
Thanks in advance guys.
Sent from my Galaxy Nexus using xda premium
http://forum.xda-developers.com/showthread.php?t=1590663
And lithium ion batteries do not need to be "conditioned"

Best battery for this phone?

So I'm looking for an extended battery. I came across this battery and wanted to know if anyone has tried it?
http://www.amazon.com/gp/aw/d/B006ZQL6EW/ref=mp_s_a_1_72?qid=1374197486&sr=8-72&pi=AC_SX110_SY190
If not can someone direct me to an extended battery cover like it. I currently have a 3800mah very similar to this one
http://www.amazon.com/gp/aw/d/B007TDTL0G/ref=mp_s_a_1_38?qid=1374197798&sr=8-38&pi=AC_SX110_SY190 but I really don't like the way it looks and also battery life isn't that great.
Cleanser2012 said:
So I'm looking for an extended battery. I came across this battery and wanted to know if anyone has tried it?
http://www.amazon.com/gp/aw/d/B006ZQL6EW/ref=mp_s_a_1_72?qid=1374197486&sr=8-72&pi=AC_SX110_SY190
If not can someone direct me to an extended battery cover like it. I currently have a 3800mah very similar to this one
http://www.amazon.com/gp/aw/d/B007TDTL0G/ref=mp_s_a_1_38?qid=1374197798&sr=8-38&pi=AC_SX110_SY190 but I really don't like the way it looks and also battery life isn't that great.
Click to expand...
Click to collapse
I found the best reviews have been Qcell and Trexcell for extended batteries. I just ordered myself a 4100Mah QCell on Ebay. Also make sure to follow proper conditioning.
Full discharge and full recharge 6 times. Leave the charger connected 2 hours after it has hit 100 if charging in the phone
Every other time after the conditioning don't let the battery die out.
Charge the battery around 20% don't let it drop that low and it'll extend it's life and will hold it charge
I have that same chinese generic extended battery. I got 4 with 4 covers for 20$ and they are garbage lol. I have had them for almost a year and they can't even give me 6 hours with 2 hours of screen time and thats after a 10 hour charge on them. My stock samsung 1800mah battery outperforms them already so i just tossed them out and I'm waiting on QCell.
Edit: Hyperion and Gorilla are good as well.
Yea I have a Qcell its boss.
Sent from my SPH-D710 using xda premium

[Q] Buy a new battery

Hi all!
I use the gadget about 2 years or more. My Battery is very bad... 1.5 hours of screen!
Can you tell me, where i can buy new REALY original battery for this phone. (in US).
Thank you!
Kidovzky said:
Hi all!
I use the gadget about 2 years or more. My Battery is very bad... 1.5 hours of screen!
Can you tell me, where i can buy new REALY original battery for this phone. (in US).
Thank you!
Click to expand...
Click to collapse
I've seen good things about one on Amazon. Which ROM are you using? Also, which kernel?
Sent from my SGH-T989
My guess is a battery issue...not a bad battery tho.
Why not get gsam and post some screenshots after a good long drain?
Your setup, usage and apps have surely changed over time. Something is likely draining your battery.
Read the first 3 posts in the battery thread in my signature.... Its for the N5...but most info is universal.
jrc2 said:
I've seen good things about one on Amazon. Which ROM are you using? Also, which kernel?
Sent from my SGH-T989
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Click to collapse
On amazon many fake battery. Ok, try to find it again.
ROM is cm11 with default kenel
Kidovzky said:
On amazon many fake battery. Ok, try to find it again.
ROM is cm11 with default kenel
Click to expand...
Click to collapse
Ok. I've seen some good things about Anker batteries (like this one:http://www.amazon.com/Replacement-T...H-I515/dp/B0078WL4YO/ref=cm_cr_pr_product_top)
With a new battery, do a full charge, full discharge (until phone dies and will not turn back on), and another full charge.
+1 for the anker 2200mah replacement. It's cheaper than the oem battery. It lacks nfc though. And as for the whole "battery memory" thing, don't worry about it. Just pop the new battery in and use it however. I just bought the anker to replace the original battery in my wife's s2, her battery life has doubled.
I just bought the Anker 2200 mAh battery and its great. My phone does last a little longer on standby, but my screen-on time hasn't increased by very much (I typically get about 3-4 hrs screen time).
I'm running CarbonROM + Wildkernel and other various tweaks for battery life. My phone spends most of its time in deep sleep.
When you open your battery stats, what things are taking the most out of your battery? I've found the app Wakelock Detector to help a lot in tracking down battery drains.
play.google.com/store/apps/details?id=com.uzumapps.wakelockdetector&hl=en
GSAM gives a much easier to understand picture of battery usage. If you're rooted, get Gsam root companion as well to see held awake stats. ?

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