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Hello, i just want to give a testimony about my new Uni battery.
3 days ago I am buy a new battery for my TM MDA Pro. I buy this because I want to replace the 2-years old the original battery with brand new battery. Because the original battery is "damaged", the device blacks off when reach 38%, or 50% using UMTS radio, 80% using camera, 75% when using data connection. I am trying the troubleshooting rules posted by users on this forum but no effects.
Purchasing on the phone store, ask to the seller and they say they not have the Original battery, so the seller give me the second-quality one. I am comparing the original battery and the one which i will purchase. Different manufacture only. The original made in taiwan and the purchase one is made from China. Both from Dynapack.
after this all , i try it at my home. The new battery already filled but at 15%. Hey, if i am using the old battery one, i think the device cannot turn on. But with this new battery, it can switch on without turn off backlight or radio at startup. COOL!
And then I go to charge it until 100%. The battery is drained .. hmm little a bit quicker than the old battery, but It is very powerful, i still can use camera altough the battery at 50% ! Also i can use data connection when the battery at 15%.
So I think, buy a new battery is a solution if you have problems with the device that blacks off at XX%.
I just have this battery for 3 days, I will continuing testing this battery.
Note : sorry for my bad english

iam cheated........
even i was having battery problems die at xx%,i bought a made in china battery from a local shop.the time i inserted it battery was 45% left......but the battery backup was horribly low,in 15 mins my battery got to 15%....nd in next 10 mins it was fully drained......even if i havnt used any battery sucking apps,it was just in normal sleep mode,still it got drained,the original corrupted battery giving satisfactory backup despite of the turnoff issues....,i think iam cheated from that vendor......coz i bought it for a high price of 25$.and this f****ing performance is hurting me a lot......plz guide me guys what should i do.........

Sorry, there is something I forget to report, but mayur9890 has been remind me.
After initial charge until 100%, I carry it to my office. When on the road it still 100%. But after I reach office, it goes 69% ??? So quick??!!
But i have try to continue use them. But the device still working although the battery remaining is just 12%.
So I think I just have the "same" quality battery. Maybe the lost 31% on the new battery is same as 38% the old battery as that turned off. Hahaha...
mayur9890, the battery you buy is so expensive. I just buy around $15. With note my country is Indonesia.
Are the battery what do you buy is little same with the original battery? My old and new battery does not have significant differences. Just the manufacturer country. My new battery is from China also. From Dynapack.
I suggest you to buy that battery.
Thanks.

Long lasting battery ?

My battery on the x7501 is dying, is there a good and fast company that you can recommend for a longer lasting battery ?
Thanks

We've been discussing this lately in the Athena Accessories sub-forum. http://forum.xda-developers.com/forumdisplay.php?f=354

Go get yrself an external battery pack of 38000 mah and above , buy 2 if u really use it a lot , just leave the original battery inside or if it is really dead , get one oem replacement - cheap ones and use it with ext. batt pack , original htc ones dont really last that long either , so try save some $ , we hv to resort to all these bcos the original manufacturer unable to find more space for a longer and better battery - that's why , so we hv not much choice - jimmunsw take care n cheers

I bought a 2400 mah battery online from Mugen power (google search) and the battery is a direct swap (same exact size as factory) and it does last longer. I know it's just 200 mah more but it last longer than factory, from the time I take it off charger in morning till recharge time is about 12-16 hours, here is a typical day usage
- 70-100 min talk time (all though bluetooth)
- (gsm internet) email checks on four accounts
- (gsm internet) weather checks all day
- pda usage throught out day for calendar reminders, task entry & reminders and contact lookup (device on an off as needed - not on all the time)
- wifi usage to transfer files in my office network (network plugin)
- and sometimes about 30 min on wifi internet at night.
This is more than I used to get, the battery is about $75 US and comes with a desk charger, so you can keep another battery always charged.

anx7501 - just curious what ROM your using. Reason I ask is i think the ROM has a lot to do with how long a batt. can last. I have a new batt also but never get close to what your getting. Also how long have you had the new replacement batt? I may just buy that type of batt that you ave if your ROM is the same as the one I have.
thanks

My ROM ver 2.19.453.4, factory X7501 ROM (no flashing)
I've had the battery for 2-3 months now, honestly this is second one. I was a little too hard (physically) on this first and it started loosing charge rapidly. Nonetheless, they were very honorable about replacement - I mailed them mine, they mailed replacement (within one year warranty period). The one I recieved in exchange is now about 2-3 months old.
Mind you I now BABY this battery, I keep an eye on charge, when it's about 20% at night I put in standby, place face up until battery side is cool. I charge with device proped up to let air under. All this sounds weird but I find that it re-charges and holds a charge better when the battery is not hot.
I do get an honest days use out of it now.

Hi there again ,
it is nice to be in america and gets to buy a mugen battery for usd75 , pretty good n reliable n lasting quality battery , but for others if get from mugen , plus the express us mail or courier services , the total end cost will be around usd 130 - 140 ( let's say from usa to malaysia for example ) , i mean it really cost us a lot , our local seller will sell us an oem china made battery for usd17 each for 2200 mah with one to one exchange warranty for 12 months , basically it will last at least 75% of one mugen battery when new and after that it will drain it's efficiency and retain charge ,this depends on how one use the battery , one must pull the plug or switch off the current of charger once it is fully charge - from orange light indicator turning to green colour , if this is not practised , then battery will start dying soon . but yr idea of cooling off the battery standing up and also charging that way is quite a good idea , maybe i give it a try to see any improvement . thks for reading and all the best - jimmunsw

My current battery is over a year and a half old now, and I have always kept it plugged in whenever possible. My first battery lasted for 3+ years using this method! The rom does have a big impact on the daily battery life in these units! I used my phone alot and have usually gone about 2 days on a single charge when I have not had my charger with me. I use it with the bluetooth on all the time, and I check and answer my emails 4 or 5 times a day! The only times that the battery wears out quickly is when I use the wifi or when I play games on it.
Later...........

Battery Life
I'm currently only getting 1-2hras of battery life.
I used to be able to watch a 2 hr video with no problem. If i left it unpluged over night it was OK. Now I charge it overnight and it won't het me to wor (1Hr) playing music and reading. I think it has to do with setup or apps as I have 2 Batteries and they both do it.
Stock ROM. is there any list of apps that kill Batt life?
Thanks

brand new lg g2 battery crap

hi guys bought a brand new lg g2 from vodafone, when i opened it was on 80% charge so fully charged it then had screen on for 5 mins then put on side as was bed time woke up this morning and phone had turned off with no battery, why is this have i got a faulty phone and should io take it back as it is supposed to hold charge for at least a day woth no screen time surely TIA

That is quite an issue. I would run it for a day or two, making sure that you do not over charge it. If it doesnt pick up then i would take it back to vodaphone. As long as you havent rooted it or anything they should just replace/repair it.

This phone is so awesome yu were probably playing with it in your sleep, didn't even realize it!

fully charged my battery and only got 8 hours standby time not even made any calls or played any games virtually no screen time surely its a dud battery can any 1 suggest any apps to see whats going on or to see whats using it all as all i can see is android os using most please and TIA

get better battery stats and you may need root for it cant remember. sounds like an app is wakelocking you and draining the battery hard.
For example i know the paypal app is really bad. I had it installed and i was getting like 20%+ drain an hour from it

ratboy666 said:
fully charged my battery and only got 8 hours standby time not even made any calls or played any games virtually no screen time surely its a dud battery can any 1 suggest any apps to see whats going on or to see whats using it all as all i can see is android os using most please and TIA
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Try a factory reset and see how it rolls.

Battery lifespan .

Hello guys ive been reading tips about battery lately but i haven't decide what is best for it. My note 4 i still have it , i charge it very very randomly , after 1year i still have 1 day of battery so i didn't do anything bad to it even if i charged it so randomly . There are alot of informations on forums that say that battery should be charged from 30-50 too 70-90 and once a month , u let it completly drain ( till the phone shuts down itself ) for recalibration . I usualy charge my s6 from 20 to 100% , but ive read that this is bad too. I don't know what to think about it and i would like some other people to tell me how they are charging it . Sorry for my english.

It's all rubbish.
It's a battery, it'll have 3 pins, a positive, a negative and a thermistor pin, that's it, there are no electronics inside the battery, it's just a simple chemical Li-Ion battery. I expect when the phone dies at 0% this isn't actually 0% at all, more a feature in software to make sure the battery doesn't get damaged. There is no such thing as 'calibration'.
Do some reading on Litherion Ion cells and you'll see just how much rubbish is scattered by people on here.

Yeah, like the old not leaving it plugged in overnight myth. I've lost count of the times I've seen that one.

To be honest with you , i don't believe everything i read about batteries and im sure im not going to drain the battery once a month just for the fun of it. Still , i am going to charge it to full every time because its easy for me to plug it in and let it sit like 2hrs and get it full than to watch over it and stop it from charging at 80% , when its green,i take itoff and that's it.

One thing to note though, which is true, is don't ever leave a flat battery flat for a long period of time as this will reduce its efficiency in the long run.

Noted. So , one more thing , what should we do , charge from 20-30 or whatever to FULL or to 80% as they say it's not OK to go full.
Alex---1 said:
One thing to note though, which is true, is don't ever leave a flat battery flat for a long period of time as this will reduce its efficiency in the long run.
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Well , samsung reply was satisfying . So i guess if someone would really want to care about the battery lifespan , should discharge phone ( till it shutdown itself ) and recharge from time to time (1 /month ) .
Samsung reply with :
" Regarding the charging of your device, all of the scenarios you describe shouldn't have any particular negative affect on your battery. However, completely discharging a battery from time to time can help to extend its operational life by a small amount. "
( The scenearios i described are the same as in the first post of this thread )

Extremly strange battery behaviour! Jumps Upp and down and drainage on stock Note 4

Note 4 unrooted, Stock 5.1.1
Fast charging enabled, great battery life untill about a week agoo.
All the sudden my battery have been acting strange. For starters it drains extremly fast! tried every damn app to see what is causing that! Cant find any thing. removed the battery and still dosent help
And just now i had 13% battery and 1 secound later it was down to 1% !!!!
I put in the fast charger and it says it cant charge, but charge icon is still there!
1 secound later its 3% and after that it jumps to 40% then gets back to 25%

Sounds like a bad battery bub. My first battery went Ro hell randomly like that and I found it literally was just that battery. I ordered a replacement plus little charging back up kit on amazon and that battery is normal.

KingVekxin said:
Sounds like a bad battery bub. My first battery went Ro hell randomly like that and I found it literally was just that battery. I ordered a replacement plus little charging back up kit on amazon and that battery is normal.
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hmm! I susspect that to, but this happened pretty fast!
Untill a week agoo i had as mentioned great battery life! But then battery began to drain pretty fast. but the battery jump is totally new and i got this today while looking at the screen.
Can even add that now after a restart i got from 25% down to 16% just after a restart and cache clear :S

3kgt said:
hmm! I susspect that to, but this happened pretty fast!
Untill a week agoo i had as mentioned great battery life! But then battery began to drain pretty fast. but the battery jump is totally new and i got this today while looking at the screen.
Can even add that now after a restart i got from 25% down to 16% just after a restart and cache clear :S
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That's pretty much how mine started. It was at random, seemingly had no reason to do it honestly. But the first instance it had i believe 15% battery left and suddenly shut itself off lol afterwards I just got another battery on top of an extended battery which I refused to use the fast charging function with. I've read too much and experienced first hand it just wrecks batteries.

strange mine start doing the exact same today. Jumping from 60 to 20 to zero in minutes. Any one advise where to get genuine replacement, not the ebay crap.
Thanks

gersrt said:
strange mine start doing the exact same today. Jumping from 60 to 20 to zero in minutes. Any one advise where to get genuine replacement, not the ebay crap.
Thanks
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I live in Sweden, found many Original batterys.. So i dont think that would be a problem. The cost on the other side, thats a nother story!
Hmm.. I suspect fast charging as well. This is the first phone i used with fast charging, and first time that this happens to me.. And i have owned many phones. :S
Will close fast charging, thow its a damn good function.

gersrt said:
strange mine start doing the exact same today. Jumping from 60 to 20 to zero in minutes. Any one advise where to get genuine replacement, not the ebay crap.
Thanks
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Same thing happened to mine as well. Ended up buying a two pack of Anker batteries on Amazon, and it's worked like a champ ever since.

I had some really poor battery issues after 5.1.1, also about a month after dropping my Note in water...anyways, I did a factory reset after having 5.1.1 for a few days, and now the battery is doing great!!! 10 -12 hours with medium to heavy use.

I have now changed to a new battery and dont use fast charge anymore.. but now im using wireless charging instead lol
Anyways im still unhappy with the battery, i will do a reset when i get time.

I went from 50 to 1 one night. This was on KK. I upgraded to 5.0.1 (BOF) three days ago and the battery life seems more stable and longer lasting. Try letting it drain until it powers itself off (at night) and charge it off until it is full. I have had to do this on other Android phones (an S3 was one) and it corrected strange battery performance, readings.