Develop Bugs

[Q] Charging for the first time...

1.How many hours should i charge it for the first time when i take it out of the box?

I would say charge it until the light turns green

Light goes green. Done.
All this charging for hours and hours before you first use it malarky goes back to NiCad days and does not apply to Li-ion batteries.

I left it to charge overnight, but I don't think it matters with Li-Ion batteries

Li-Ion batteries doesn't need that initial 8 hours charge.

I remember reading article on engadget saying you can charge in whichever way you like thanks to nowadays battery technology.
Sent from my Desire HD using XDA App

I know about the memory effect of older battery technology and how it isn't present (well, it's so small as to not count) but I still charge my phone regularly and leave it plugged in for at least an hour or two after the charge light turns green. I'm not the heaviest of phone users, probably very light to medium, but I get a day easily. This is from last night when I got the 15% or less charge remaining message...
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I shrank the image to avoid it looking overly large. I'd like to point out I'm using stock firmware, no overclocking or underclocking and while this was longer than most charges I'm usually getting between 22 - 30 hours between charges. You might be able to do the same and get nothing like this, I'm just passing on my experiences

Well can you show us the screen on time and also whether during that 1 day and 15 hours was it on heavy internet usage?
Sent from my Desire HD using XDA App

Not now I can't because that was posted before I went to bed and the times reset when I took the charger out. As I said I'm not a very heavy user at all, I'd put myself in a perfect tablet user market but I'm waiting for better options to come out. Judging from my usage I'd have to guess at around between one and two hours screen on time. A lot of my use is basically checking a few things online, Twitter for example, reading a few articles on Engadget and the odd YouTube video.
I'm not saying the battery life is great or that using it this little is normal, but I don't purposely avoid using it to stretch the battery out so this is typical for my use.

I got a letter from my provider saying you should charge the phone for 14 hours i only charged it until the light was green 3/4 cycles of usual charging should get the battery working at optimum level.

[Q] Odd Battery Charge Curve

hi all,
i noticed the charge curve on my evo is not linear. at first it's logarithmic and then linear (see pic). everything is off (3g/4g, wifi, bluetooth, sync) while charging (only turning on once in a while to check the %). is this normal?
ive wiped my battery stats and done all that. during use, the battery drops to 60% quickly and then discharges slower. im using deck's gb 1.3 rom, havent changed the kernel, no wake lock issues as far as i can tell.
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I was having the same exact issue. I bought a new battery and figured it must be bad when it would jump from 80 percent to full in a matter of minutes. Then it would discharge to around 70 percent in a matter of an hour. After it hit 70 percent it would discharge more slowly. This was a battery that the Sprint store gave me and I was led to believe it was new. After it did this weird charging discharging issue I went back to sprint and this time received a brand new battery in the package. The young lady behind the counter showed me a box full of all types of used batteries and explained they probably pulled one out of the box of the used batteries. I exchanged my original battery because it wasn't fully charging anymore but the weird charging spike I got with the replacement battery was a first for me. Anyway the "NEW" battery is working like it should so you may be looking at a bad battery.

I know you said you wiped battery stats but did you calibrate the battery at all?

oop. forgot all about this post. thanks for your responses.
i assumed something weird may have happened from my going stock to root so i checked out a friends battery. he never rooted his phone. unfortunately i get the same charge curve.
yes, i have calibrated my battery/ ie, charge to full, wipe stats, then drain phone til shut off.
i will try contacting sprint/htc for a new battery and see how that goes.
anyone else have this issue?

Me, all the time. Have yet to have a different curve ever. Mine happens a little higher though, around 70%. Try battery monitor widget and you can see the actual charging voltage
Sent from my PC36100 using XDA App

I use SetCPU with 3500mAh battery and last 28hrs on single charge
Sent from my PC36100 using XDA App

plobukt said:
oop. forgot all about this post. thanks for your responses.
i assumed something weird may have happened from my going stock to root so i checked out a friends battery. he never rooted his phone. unfortunately i get the same charge curve.
yes, i have calibrated my battery/ ie, charge to full, wipe stats, then drain phone til shut off.
i will try contacting sprint/htc for a new battery and see how that goes.
anyone else have this issue?
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After you drain the battery completely, charge it to 100% without unplugging. Recalibrate with that method and see if it helps.
Supersonic Evo 4G | MIUI | Tapatalk

Best extended battery?

Hyperion, QCell or Seidio? Any suggestions? Thanks

bueller213 said:
Hyperion, QCell or Seidio? Any suggestions? Thanks
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If you search the forums there's always an answer.
http://forum.xda-developers.com/showthread.php?t=1843896
http://forum.xda-developers.com/showthread.php?t=1802386
http://forum.xda-developers.com/showthread.php?t=1691085

I bought the Chichitec 2500mAh extended battery pack and they work very well. I get on average a minimum of 4hr screen on with lowest brightness as oppose to 2hrs and change with the stock. I also use jucedefender and I rarely talk on the phone. I would recommend them.
http://www.amazon.com/CHICHITEC-2x2...qid=1348350682&sr=8-1&keywords=chichitec+2500

alix0056 said:
I bought the Chichitec 2500mAh extended battery pack and they work very well. I get on average a minimum of 4hr screen on with lowest brightness as oppose to 2hrs and change with the stock. I also use jucedefender and I rarely talk on the phone. I would recommend them.
http://www.amazon.com/CHICHITEC-2x2...qid=1348350682&sr=8-1&keywords=chichitec+2500
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http://www.ebay.ca/itm/380454666983?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I have that one, it isn't bad, but it isn't great either.
Typical Chinese quality (Samsung is spelled Sanmsung and Galaxy is spelled Galyxa when you actually get it).
Battery life is, well, I dunno. It's hard to say. My phone was at 57% charge, I turned on the extended case and without any use it charged my phone back to 100% no problem but the extended battery was pretty much dead. I'm sure it works better when both the phone and extended are charged to 100%. The AC/DC converter inside the case is VERY inefficient and gets VERY hot. Don't even bother attempting to charge the extended battery while the phone is in it, I'm suspecting it will catch fire or melt lol...
I like how it has a power button and the kick stand works. The case is very sung and everything lines up properly so for build quality I give it a 10.
The USB port pass through is CHARGE ONLY, data pins are missing so it kinda sucks if you use OTG devices or need to plug it into the PC to transfer files etc. But all in all you get what you pay for.
My friend has the Hyperion 4200mah with NFC. It works excellent, double the battery life. He usually gets 3-4 days with normal use out of the phone without charging (but that depends on person to person).

Here are some of my hyperion 4200mah stats
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This is also with heavy usage... Hence the 51% screen time
Sent from my SCH-I535 using xda app-developers app

I just bought another oem battery and always have an extra one on the wall charger. I probably swap out once a day.
Sent from my SCH-I535 using xda premium

Slow charge problem

Hello, I have the problem that no matter which charger / charge cable ,the phone takes at least 3 hours to charge 0% -> 100%, the battery once charged gives me life 3-4hs sot (screen on time). Thanks
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Sounds like your battery is bad. If you have the phone/battery for about a year or less, it's possible the battery is defective. If you have another battery use that one, but if you have a new battery you will need to cycle charge the battery. This means you have to charge from 0 to 100, let it deplete completely and keep doing the same thing for about 3-6 charges. This effectively breaks in a battery giving you the best longevity.

tonys.94 said:
Sounds like your battery is bad. If you have the phone/battery for about a year or less, it's possible the battery is defective. If you have another battery use that one, but if you have a new battery you will need to cycle charge the battery. This means you have to charge from 0 to 100, let it deplete completely and keep doing the same thing for about 3-6 charges. This effectively breaks in a battery giving you the best longevity.
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thanks tonys, i will try it

Shu7Down said:
thanks tonys, i will try it
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sorry to revive this thread but did a new battery work for you? I'm experiencing similar problems since the MM update, without fast charging enabled it charges at about 600mah, with fast charging enabled its about 1000mah but tapers off to 400mah once it gets to 85%
I'm not sure if its my battery or if this is a new "feature" of MM, last time that i charged from 30% it took 4 hours to reach 100% if anyone got a suggestion let me know.

3-4 hours is great compared to mine. If I use the USB cable, it'll take about 12+ hours (0-100%). Problem started after I dropped the phone. Luckily wireless charging takes about 5 hours.

Used to be no more than 2 hours before, not sure what the problem is, the battery is only a year old

Question SUNWODA Charge Cycles and Long Term Battery Capacity Retention

Topic: Expected charge cycle count before capacity drops to 80% of rated capacity of 4905mAh 18.88 Wh for the Sunwoda battery in the P6P
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Please vote mentioning your charge cycle count along with actual capacity vs the rated capacity of 4905 mAh/18.88 Wh

That's an interesting topic. With my P4 XL, I won the actual capacity lottery and had a phone that started with 109% capacity.
My P6 Pro has (according to 3 weeks of Accubattery) about 102% actual capacity (~5110 mAh) after 21 sessions with ~1100% charged (~ 55000 mAh).
The design capacity by the way, as you can see in your screenshot, is 5003 - not 4905 as per your statement.
4905 is the MINIMUM amount that Google accepts/offers, 5003 is the "typical"
-> (typical = design)
I'd give it a 3.6
Not great, not terrible.

Wondering how everyone's battery capacity has been doing. Out of the box Accubattery stabilized around 99% for me but now after 4 months I've dropped to 95% (4755mah). This is much faster degredation than I typically see on my devices. 95% of the time the phone is between 20-80% charge, my chargers shut off at 80% unless I know I'm going to need the extra capacity. My unit runs hot quite often and Im thinking that it is wearing out the battery with all the heat. Curious what other users are seeing after some months of ownership.

niggits said:
Wondering how everyone's battery capacity has been doing. Out of the box Accubattery stabilized around 99% for me but now after 4 months I've dropped to 95% (4755mah). This is much faster degredation than I typically see on my devices. 95% of the time the phone is between 20-80% charge, my chargers shut off at 80% unless I know I'm going to need the extra capacity. My unit runs hot quite often and Im thinking that it is wearing out the battery with all the heat. Curious what other users are seeing after some months of ownership.
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Mine started at 102% and is now at 101%. Got it when phone was 1st released in Oct..

Lughnasadh said:
Mine started at 102% and is now at 101%. Got it when phone was 1st released in Oct..
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Good to hear you are having more luck, 1-2% per year is what I am used to seeing on past devices under similar usage patterns.