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Why no smartphones with HUGE batt?

These days smartphones have gotten plenty small to carry normally. so why don't they beef them up with a ginormous batt and make it a selling point?
I think the SGS is the smallest big screened smartphone. If they were to make it Evo sized, double the batt life and sell it as a completely different phone, that would be great! I mean I would think it would be some major bragging right to say "our phone has 200% the batt life of the next best phone".
10 hours of full 3G web browsing/GPS/video playback
70hrs+ of audio playback
on top of all that, maximum batt life deterioration over time will be null because you'll go through MANY fewer recharge cycles.
These phones are all great, but I'm a power user and I'm always fighting my batt. We should be able to have all the bells and whistles blowing at all times.
Thanks for your time/response
Edit: the new iPod has a 3400mah batt. Coupled with the "Peal" which turns the iPod into an iPhone (albeit an ugly one), you basically get an iPhone 4 with double the batt life in a similar sized package...
Edit: I'm dead wrong about the iPod's batt capacity as rajendra82 has pointed out. It was 3.4 watt hour, not 3.4 amp hours. Sorry (for the record, the iPod's batt would be terribly insufficient as a modern phone batt in a smartphone)

eatkabab said:
These days smartphones have gotten plenty small to carry normally. so why don't they beef them up with a ginormous batt and make it a selling point?
I think the SGS is the smallest big screened smartphone. If they were to make it Evo sized, double the batt life and sell it as a completely different phone, that would be great! I mean I would think it would be some major bragging right to say "our phone has 200% the batt life of the next best phone".
10 hours of full 3G web browsing/GPS/video playback
70hrs+ of audio playback
on top of all that, maximum batt life deterioration over time will be null because you'll go through MANY fewer recharge cycles.
These phones are all great, but I'm a power user and I'm always fighting my batt. We should be able to have all the bells and whistles blowing at all times.
Thanks for your time/response
Edit: the new iPod has a 3400mah batt. Coupled with the "Peal" which turns the iPod into an iPhone (albeit an ugly one), you basically get an iPhone 4 with double the batt life in a similar sized package... sigh...
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The new iPOD touch has a 3.44 Wh battery, which at 3.7 V translates to 929 mAh. The Samsung Captivate has a 5.55 Wh battery, which at 3.7 V translates to 1500 mAh. Since the battery capacity is directly proportional to the volume, a battery of 3000 mAh will be twice as big as our current battery. The biggest phones today (i.e., the EVO and Droid X) only ship with a 1300 mAh battery. 1500 mAH is plenty for this phone to get through the day. Battery life is typically rated at 1000 cycles, which is 3 years assuming a full day to go from 100% to 0%. You are likely to replace the phone in 3 years any way.

Our phones do have large batteries, and as long as you don't have a bad program, have the screen on super bright, or use it as a hot spot, the battery life is going to be good enough for nearly anyone.
The captivate has a HUGE percent of the volume dedicated to the battery already, without using a non standard (non rectangular prism) battery shape the phone thickness would need to greatly increase and have wasted space.
In simpler terms, when your battery is already good for the market, a thinner phone sells more than a marginal battery lfie increase.

What about weight? Does a bigger battery weigh significantly more?

I would love to have a bigger battery or one of those battery cases like my fiancee has for her iphone. I think the above comments are spot on, but i think what companies dont take into account is how much people use their phones for on a daily basis. I dont know about you, but I use my phone a hell of a lot during the day more so than what constitutes as 'just getting through the day'. If im lucky enough to make it through till the end of the day its skirting on the red. A backup battery would be awesome to have!

rajendra82 said:
The new iPOD touch has a 3.44 Wh battery, which at 3.7 V translates to 929 mAh.
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Sorry, I just realized that. I must have missed the details about the ipod power.
I understand that the captivate technically has the "best" battery, but I do not agree that it will last through the day. I'm using my phone regularly to look up information, text, Gtalk, and make many calls. The phone is dead by the time I get home around 6pm (days start around 7:30am).
the iPad has a "10 hour batt life". My sister has her iPad lying around the house but she and I are much more often on our phones, so why don't our phones have a 10 hour batt life? I think its kinda difficult to use the ipad for 10 hours in a single day seeing that people usually work too. My phone is used for productive purposes usually, so it is very easy to drain it in the 4.5hrs it lasts on any day (not to mention difficult to get through an 8hr plane ride and still have juice to find your way to the hotel when you land). Last I checked, a day was at least 8 hours, not 4.5.
I also realize that they would have to ditch the rectangle/cube form factor of the batt in order to fill the space of a larger case more efficiently (something the iphone takes advantage of). I have nothing against this (or the added weight) and I don't think any other power user would care either.
At the end of the day, a captivate thats as big and heavy as the Evo is a small compromise if it'll last ALL day long and I believe there is a significant market for Android+10hr batt. Unfortunately, the obvious response to that is that I'm wrong since it doesn't exist. So I guess I'm just a crazy person then
Sigh...
Edit: I forgot to mention Virgin America has solved all flying problems with this nifty little thing called a power receptacle in each trio of seats.

There have been at least 10 different claims in the last 5-10 years from companys saying they've found a way to at least triple battery capacity.
so far none of them have made anything...

Have you ever seen those extended batteries that also replace the back cover? They look awful. It's great that the Captivate is so slim and light.
It's unlikely that enough people need that much power every day for manufacturers to implement a huge battery in every device.

Nevertheless, it would be great to have the option.
Third party batteries that replace the back cover haven't been designed by the manufacturer to take advantage of all the space available, they're just made afterwards for the (admittedly few) people who need to stay more than 12hrs without a power source.
If a manufacturer specifically made a phone to accomodate a larger battery, the uglyness+volume/duration ratio would be much better.
Imagine a qwerty slider with a large battery instead of the keyboard: you could live with the additional volume and you could go on for two full days without a powersource.
Personally I wouldn't ever make it without a car charger, I keep a spare battery around in case I need it and even carry a retractable microUSB as a key holder (I use my phone as a music player, the battery drains FAST).
I'm ok with that but a large capacity batt. would let me not have to care about how much juice I have left all the time, wich would be great.

eatkabab said:
At the end of the day, a captivate thats as big and heavy as the Evo is a small compromise if it'll last ALL day long and I believe there is a significant market for Android+10hr batt. Unfortunately, the obvious response to that is that I'm wrong since it doesn't exist. So I guess I'm just a crazy person then
Sigh...
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You're not crazy. I think about the smartphone battery problem all the time. It's by far the biggest drawback of a smartphone. Even if you are using it lightly, you still have to charge every night, that is smartphone 101. And yet, if my friend iwth a little feature phone texts me all day, and I text them back all day, there phone... is fine. They can bascially run it all day for three days before needing to charge when it's new. My Captivate (or any other smartphone)... constantly having the screen on? It would be begging for battery after hours. Now of course, we have vastly better batteries than the feature phone, it's just the smartphone is doing significantly more. But still, yes, there should be a way, possibly with non-rectangular batteries, to significantly (at least double) battery life at a not massive cost to form factor and size. And yes, I'm sure there is a market here as well.

Seido is in the development process for a 3200mA battery for the cappy. Won't be long before you can actually see what it looks like on their website
Sent from my SAMSUNG-SGH-I897 using XDA App

This may be about the captivate battery life but I think some of u are crazy. I run the hybrid r3 rom on my phone and I use it for music; GPS; internet and everything else that is normal and my battery is garbage. I'm sorry but when I buy a phone it should not be dead by like 3 pm
Sent from my vibrant hybrid using XDA App

Bigger battery means more weight. Some manufacturers get a little more power out of the same physical size, but if you really want to double the battery, you double the size and double the weight.
Since the phones have no extra room inside, you wind up with a bigger phone.
All manufacturers are trying to balance size, weight and power. It is no coincidence that all the smartphones have near the same size battery.

ColbyRyptos said:
This may be about the captivate battery life but I think some of u are crazy. I run the hybrid r3 rom on my phone and I use it for music; GPS; internet and everything else that is normal and my battery is garbage. I'm sorry but when I buy a phone it should not be dead by like 3 pm
Sent from my vibrant hybrid using XDA App
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This post pretty much leads me to believe more is going on than you're saying. With hybrid r3 I was getting two days with heavy usage, also gps isn't functional on that rom, so claiming to use it seems to be misinformed at best
Sent from my Samsung SGH-i897

beazie0885 said:
Seido is in the development process for a 3200mA battery for the cappy. Won't be long before you can actually see what it looks like on their website
Sent from my SAMSUNG-SGH-I897 using XDA App
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Seido might make some great batteries, but if the batt for the captivate is ANYTHING like the batt for the galaxy S, its absolutely retarded and WAY too big to be practical. They basically just extended the batt brick and extended the casing with it. With the same batt cover, they could have added a whole nother batt right next to the extended batt cuz of all the wasted space.
Not a viable solution IMO. A factory made phone that has a HUGE batt would be marginally larger than the current captivate because they can take advantage of a non-traditional form factor and all the space inside.

eatkabab said:
Seido might make some great batteries, but if the batt for the captivate is ANYTHING like the batt for the galaxy S, its absolutely retarded and WAY too big to be practical. They basically just extended the batt brick and extended the casing with it. With the same batt cover, they could have added a whole nother batt right next to the extended batt cuz of all the wasted space.
Not a viable solution IMO. A factory made phone that has a HUGE batt would be marginally larger than the current captivate because they can take advantage of a non-traditional form factor and all the space inside.
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Our Captivate doesn't have any extra space, and even the Droid X has a battery of the same size. I am just not seeing the extra space for bigger battery. There is also the weight issue.
Now if maybe the new Dell Streak will give you a monster battery in that big thing.

i agree that a phone with a super battery pack would be nice. me and my friends would always talk about if we could make our own phones what we would want and i always said something that would give me nice battery life so the idea i came up with was this
by default most phones come with a 1500 mah battery
but why not add a non traditional form factor to the rest of the case adding battery to and around the phone like in the area around the camera in the front of the phone around the side of the phone kinda like some of this battery jackets we see coming out for the iphone 4
i think it would add maybe just a built more bulk to the phone i'm still using a tilt so i'm used to carryin a bulky phone
i've always been interested in seeing super cap or ultra cap tech being put into a smartphone figuring if we can't go all day with our battery at least let us be able to get a full charge with in a few minutes ya know
i see ultra and super cap tech starting to be put in remotes were you can charge it in 1 minute to 5 minutes and not have to charge it for two weeks that kinda tech in a cell would be lovely

I, for one, would give up the cool looking indent in the back of the captivate (where the metal cover is) if they would fill that space with battery. It wouldn't increase the size of the phone (much), wouldn't make it bulgy, and I could see it giving at least 50% better battery life.
Even if the phone was blobby, plenty of people are buying Droid phones, and those things are frikin' mon calamari cruisers.

alphadog00 said:
Our Captivate doesn't have any extra space, and even the Droid X has a battery of the same size. I am just not seeing the extra space for bigger battery. There is also the weight issue.
Now if maybe the new Dell Streak will give you a monster battery in that big thing.
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obviously they would have to make the phone a tad thicker and its already so light weight that adding double the batt weight would still keep it weighing less than an Evo

the Samsung Captivate battery is pretty beefy if you ask me, I don't know how they would fit a processor and other components in the phone if they got a bigger battery

Definitive Battery Thread

Hello everyone!
I've spent the past week doing as much research as possible into what type of battery to buy for my G2 and i've come across alot of information to say the least. Alot of opinions, alot of useless data, and some useful data. I just wanted to summarize this info for everyone. And add any new information that people post in the thread below, including battery life data.
Popular Batteries:
- The Mugen 1800mAh - $45 (1400mAh in testing)
- The Senido 1750mAh - $50 (1400mAh in testing)
- The HTC 1500mAh 35H00123-11M (-00M).. Also known as the TP2/EVO battery - $7 (1500mAh in testing)
- The CHICHITEC 1800mAh - $20/each or $40 for 2 + Charger (untested)
Research:
- Mugen and Seido seem to have EXTREMELY inconsistent mAh ratings, HTC seems to be the most consistent.
- On the other hand, trying to compare these battery assuming constant maximum power draw is a little unfair.
The one thing that seems constant is that HTC's battery's perform as expected in every environment and over time, whereas the third partys seem to be able to pull values closer (somewhat) to what they advertise under certain conditions. Not to mention that we have no knowledge regarding the long-term affects of the 'tuning' that these third party companies have done.
We gotta realize that most battery's are using the same cell or the same knock-off cell, and we can't really expect to much of an increase in mAh in this battery form-factor.
Installation Issues:
A lot of these battery's will need to be modified to fit our phones in one way or another as they're meant for the EVO 4G/Incredible/TP2/MyTouch3gSlide/CDMAHero.. Even the ones that are labeled as "G2 Compatible" might not be as a lot of the 'higher capacity' cells have identical dimensions.
Removing the Wrapper around the battery might assist with door bulge
If you feel like you have to aggressively 'wedge' the battery in then you might want to remove/modify the little nub's at the bottom of the battery near the contacts using nail clippers/dremel/knife. Otherwise you run the risk of damaging the cell-side charging contacts.
Some of the hardcore guys in here have sanded down the battery to have a good fit
The 'fit' differs from phone to phone depending both on the dimensions of each specific battery (not the actual brand or company, but each individual battery seems to be a little bit different) and the G2 Door.
If you leave the door bulging indefinitely it might damage the door in some way, it's recommended that you remove the door and just use a case if it's a major problem for you.
Tips:
- After installing the new battery, remember to reset the battery calibration through your recovery. This affects how many times you feel the need to "cycle it through" before achieving optimal battery life.
- Don't believe the temperature sensor on 3rd Party batteries
- Individual "Before and After" stories are cool, but not that useful considering all the variables involved with the hardware, the radio & signal, the software, and the human being (placebo affect). Aggregating all the data together does give us some picture of whats going on.
- The best tell for battery quality is the weight of the battery compared to your stock one, although this is not a guaranteed method.
Conclusion
After reading through as many threads as I could find regarding this topic, It seems that the CHICHITEC batteries have come to be the most popular across all these HTC phones. While the 1500mAh HTC EVO battery seems like the best deal with the most consistent power output.
The average perceived benefit using these batteries seems to be between 30-20%.
------
All Corrections Welcome, All Data Welcome!

Fantastic initiative. Unfortunately I only have the stock at the moment and I can't comment.
Did u mean Seidio or Sendio??
Sent from my HTC Vision using XDA App

Thanks, this really is usefull and spares us who are still trying to figure out wich battery they want, alot of time!

For CHICHITEC 1800mAh battery, is it safe to shave off the piece allowing the battery to be a perfect fit? Such as trying to use a nail clipper and clip it off.

Very good work on compiling all this information.
All I wanted to do was add my experience. I went out on a limb and bought the 2000mAh batteries from Galilio.
I took the wrapper off and trimmed the tabs and have been using them for about 3 months now.
My battery door does have a slight bulge to it but I can live with it.
The other day I decided to go back to my factory battery because I now have a charger by my bed, one in my truck and one at work. I have to say, I am spoiled now. My G2 is loaded up and running like crazy and my factory battery lasted like 2 hours where my Galilio battery goes for about 9 to 10 hours.
I text ALOT and facebook runs all day, I use the navigation on a daily basis and play tons of games.
Hope my 2 cents helped.

Gravityrat said:
Very good work on compiling all this information.
All I wanted to do was add my experience. I went out on a limb and bought the 2000mAh batteries from Galilio.
I took the wrapper off and trimmed the tabs and have been using them for about 3 months now.
My battery door does have a slight bulge to it but I can live with it.
The other day I decided to go back to my factory battery because I now have a charger by my bed, one in my truck and one at work. I have to say, I am spoiled now. My G2 is loaded up and running like crazy and my factory battery lasted like 2 hours where my Galilio battery goes for about 9 to 10 hours.
I text ALOT and facebook runs all day, I use the navigation on a daily basis and play tons of games.
Hope my 2 cents helped.
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sweet i am still breaking the battery in hopefully its good as urs, btw what rom are you running?

I'm thinking about getting Mugen 1800mAH, but people are having mixed results. Maybe one day we'll get HTC made OEM battery.

G1_enthusiast said:
sweet i am still breaking the battery in hopefully its good as urs, btw what rom are you running?
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It's in my signature. lol
CM 6.1.1 I absolutely love it. Tried the CM 7 but don't like it yet.

im on 10 hours of uncharge, so far its been light use, uncluding 1 hour and 30 min of GPS some texting, surfing and HTC updates

Thanks for compiling this info. I've had greatly improved life with the 1800mAh Mugen, but wasn't aware of the inconsistency some people are seeing.
Sent from my rooted space banana using telekinesis.

How did u test them?
Sent from my HTC Vision using XDA App

I would say that the Mugen 1800 performs like a 1400 is an exaggeration.

Nighte said:
I would say that the Mugen 1800 performs like a 1400 is an exaggeration.
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Are you saying that it is better than 1400 or worse than 1400?

vittogn said:
How did u test them?
Sent from my HTC Vision using XDA App
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Please run the same tests on the stock HTC 1300 mAh battery for reference.

I've posted in a thread about a 1500 mAh battery for $8.70 with wall charger.
link

Queue515 said:
Are you saying that it is better than 1400 or worse than 1400?
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It's better, my bad for the ambiguous statement!

Nighte said:
It's better, my bad for the ambiguous statement!
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Cool, Thanks. There's a Mugen somewhere between HK and USA with my name on it.
Sent from my T-Mobile G2 using XDA App

demster said:
I've posted in a thread about a 1500 mAh battery for $8.70 with wall charger.
link
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Add the DX batteries.

Aftermarket Batteries

has anyone tried any of the aftermarket batteries, whether it be from a store, ebay, amazon, etc.
I ordered a 2200mah battery for my Infuse off ebay for $8.
I am going to try that out and see if I get anymore life out of it.
I would have gotten the 3500mah battery, but I use an otterbox and I dont think it would fit since it has the bigger cover to hold the bigger battery.
I work in a metal forging plant, so I have to use an otterbox for my work... so it is a must have if I want my phone to last.
I did order a 3500mah battery for my wifes Samsung Captivate.. She doesn't really use/need a case. I got that off ebay as well.. for about the same price.
I hope her phone lasts longer, because she can't even get a day out of it... hers is rooted running MIUI.

http://forum.xda-developers.com/showthread.php?p=20001828
Sent from my SAMSUNG-SGH-I997 using Tapatalk

I got two 1900mah ones from "yourneeds4less" on Ebay. Totally as good as stock.
Sent from my SAMSUNG-SGH-I997 using Tapatalk

battery
I just got one of them 3500 batteries from amazon and its a solid battery, it wont fit on the case because i have the Otterbox case and cant use it with this, but you can definitely tell the difference in how long it lasts, and the case fits on the back of the phone great it has tabs and snaps right in. I use this battery when i am at home using wifi or alot of power on my phone and use the Samsung battery when i leave. Great investment for $10 but when you have the case on the phone it won't do you no good.

hollywood528 said:
I hope her phone lasts longer, because she can't even get a day out of it... hers is rooted running MIUI.
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Getting a larger battery will help, but there's a lot of ways you can manage your phone's power consumption to dramatically increase your battery's life.
Take a look here:
http://forum.xda-developers.com/showthread.php?t=1510745
All I've done is use the power management program Juice Defender (on extreme setting, so data is off unless I toggle it on), not use a live wallpaper, and use a Gingerbread ROM (R3VELATION). With light to moderate use I get about a day of life, and if I took further steps I could even get more out of my battery than that.
EDIT: Whoops, you're the same poster as here, so it looks like the new larger capacity battery has solved your battery problems. I'll just leave this post up here anyway since it might help others.

Would the bigger battery cause it to overheat? or damage the phone in anyway?

tehpatrick said:
Would the bigger battery cause it to overheat? or damage the phone in anyway?
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Doubtful.
Sent from my SAMSUNG-SGH-I997 using Tapatalk

Bought the two pack of 1800 batteries from Anker at Amazon. they work drivers. I no longer have my phone plugged in as I can just charge all of the batteries using their awesome wall charger and such one in when a battery dies.
Sent from my SAMSUNG-SGH-I997 using Tapatalk

I also recommend to use dock charger like on ebay, i bought also 2200mAh batterys so i can charge them both and the free one can charge much faster since it's not in take-and-give cycle like when it's in phone usage.

onefabis said:
I also recommend to use dock charger like on ebay, i bought also 2200mAh batterys so i can charge them both and the free one can charge much faster since it's not in take-and-give cycle like when it's in phone usage.
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Came in here to ask the same question about aftermarket batteries...was thinking about buying the OEM one off ATT site for $30 because I don't see an official aftermarket battery and i'm not sure I want to buy a $10 aftermarket off of amazon or ebay because of stories I hear about cheap China made batteries exploding or damaging the phone in some way
I just placed an order for this.....
http://www.amazon.com/Samsung-SGH-i...BMJ8/ref=sr_1_2?ie=UTF8&qid=1332809949&sr=8-2
The description doesn't say so but all the reviews say it comes with an OEM battery along with the charger...great deal for $30 in my opinion if it is all OEM

The thing I've read about these batteries is they don't have a shelf life. Meaning as soon as they are made they start to depreciate. Then they sell the old ones on e bay, amazon at reduced prices as they don't last as long as a freshly hot off the press battery.
I have never had any luck in buying a extra mha rating battery, having it last an extra long time. I got Chinese 2500mah it don't last that long, and then I went and got a high capacity gold 2430mah it only last as long as a 1750mah , rather I have no idea how long normal is, as I got my infuse at a pawn shop used, battery last about 5-6 hours, normal usage, but what is normal? What is the basis of comparison? I mostly use it for movies, and wifi and, angry birds which eat my battery up.
My theory is the more you pay the younger they are, a 4 dollar batter last less then a 10th dollar battery. But I don't have the monies to buy every battery in all the price ranges to test and do all that techy stuff. To me it is just a grip shoot. Hit or miss.
mikied12
sent from my X10a Generic gingerbread rooted, looking into flashing miui or something better, ne ideas pm me, sent using taptalk
can't learn how to fix it, if you don't break it first

All batteries age during use.
Aging factors are temperature and also voltage.
I think temperature is well known but I don't hear as many people talk about voltage.
Charging your phone to 100% and leaving it on the charger encourages aging.
Some of the cheapo's are not as resistant to aging as the stock batteries. Common story is they work fine for the first day or two and then start to noticeably lose capacity. I noticed that when I tried out the Fujei battery.
Adding to the whole mess as you alluded... evaluating battery life quantitatively is not an easy deal. My usage varies every day.
I get a rough feeling when my battery life is fading but it's subtle.
Battery Monitor Widget has a feature where it estimates your actual 100% battery capacity in milli-Amp-hours (1750 = factory spec but actual will be different and will decrease over time as the battery ages). I think that if you use BMW and allow your phone an uninterrupted charge from low voltage like 20% up to 100% (without using the phone during that period), then it will develop a pretty good estimate of your battery 100% milli-amp-hour capacity (because our phone does have a charging current monitor which BMW accesses, but it does not have a battery discharge current monitor). That's a lot of work, but probably not a bad thing to do once a month to keep track of your capacity so you'd see a trend like 1750 one month, 1700 the next month, etc. I might start doing that some day..

3500mAh Battery
It's been a week, and my battery life is going UP. I plugged in today, and at 1931 hrs today, I still had 61% of my battery life left. I have not had any appreciable decline in battery life, nor reduction in longivity. With the stock battery, my phone is completely dead by 1715. I unplug daily at 0800. My battery life has easily doubled by purchasing a no-name battery from an Ebay seller. I'm quite impressed with it, and I spent $80 on an extended battery when I had my TP2.

Has anyone try those 2500 mah batteries from ebay? I am interest in buying those since they are only 4 USD each. What do you guys think?

Extended Life Battery tempts me:) (a.k.a. extended battery discussion thread)

So I was surfing the intraweb last night and came across http://www.mugen-power-batteries.co...galaxy-s-relay-4g-t699-with-battery-door.html. Very tempting, especially considering that according to Mugen it has NFC. What do y'all think? Should I?
Sent from my SGH-T699 using xda-developers app

uuh... the relay is already quite thick, with that battery it will be huge... i personally wouldn't, but it's a matter of personal taste

I had an extended battery on my Doubleshot before this - the bulk didn't really bother me. Maybe I'm strange but I didn't mind. Especially with the battery life I got.
Sent from my SGH-T699 using xda-developers app

i has extended batteries for my G1 one back then. i used them when i took the device with me geocaching. I had two of them and they made the device stay up longer than i ever did
downside with the bulky back covers is, that the device won't fit into any pouches no more. and, of course cases no longer fit either.
but once you're used to the shape - imho - the added thickness is no longer disturbing.

onebornoflight said:
So I was surfing the intraweb last night and came across http://www.mugen-power-batteries.co...galaxy-s-relay-4g-t699-with-battery-door.html. Very tempting, especially considering that according to Mugen it has NFC. What do y'all think? Should I?
Sent from my SGH-T699 using xda-developers app
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Click to collapse
You can go for this solution....1/5th of Mugen's price:
http://www.hyperionea.com/product/hyperion-samsung-galaxy-s-relay-sgh-t699-2-x-battery-charger/

I had purchased a EZO high capacity battery with cover from Amazon--the same day I ordered the phone. That was months ago and I see the battery is no longer available on the site.
That's a shame, because the package was reasonably priced, the cover fits well, and the battery works as promised.
The device can run about ten consecutive hours for me running CM9 without any CPU profiles and with the governour set to interactive.
If I'm going to be away from a charger for a long time, I've found that setting the device to powersave is tolerable for most applications and the battery goes from good to ridiculous...
The additional bulk will turn off some buyers; however, I have found that it makes sliding the keyboard open much easier...
If you can find an EZO battery and you don't mind the extra bulk, I recommend one.

orange808 said:
I had purchased a EZO high capacity battery with cover from Amazon--the same day I ordered the phone. That was months ago and I see the battery is no longer available on the site.
That's a shame, because the package was reasonably priced, the cover fits well, and the battery works as promised.
The device can run about ten consecutive hours for me running CM9 without any CPU profiles and with the governour set to interactive.
If I'm going to be away from a charger for a long time, I've found that setting the device to powersave is tolerable for most applications and the battery goes from good to ridiculous...
The additional bulk will turn off some buyers; however, I have found that it makes sliding the keyboard open much easier...
If you can find an EZO battery and you don't mind the extra bulk, I recommend one.
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http://www.amazon.com/EZOPower-Capacity-Extended-Replacement-SGH-T699/dp/B00AQRVYXY - this one?
Does it have NFC? I don't see it anywhere on the page.

janejunx said:
http://www.amazon.com/EZOPower-Capacity-Extended-Replacement-SGH-T699/dp/B00AQRVYXY - this one?
Does it have NFC? I don't see it anywhere on the page.
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Nope. No NFC.

I've had my Relay 4G about a month and a half now, and am already looking at getting an extended battery. I find myself charging it a few times a day - sometimes I'll only get maybe 3 hours before it's "critically low". Yes, I do use it a ton - it's currently my main computer, since I rarely have access to my parents' laptop and my desktop, whose case+mobo+cpu I recently sent to the recycle bin, bit the dust over a year ago. Also I have unlimited unthrottled 4G on T-Mobile (and used well over 10-12GB last month, & this (billing) month am currently at 12.21GB since April 28.
I've seen the Mugen 4600mAh battery with NFC online around $90 (way too rich for my blood), and the EZOPower 4100mAh (no NFC) for around $17-23 or so at Amazon or NewEgg, among other places. I was originally wary of the cheap price on the EZO, but if the huge price difference is due to NFC and not being a cheaply made battery, I'd want the EZO, possibly 2. I don't use the NFC hardly at all, and I suppose if I really need it sometime I could pop the original stock battery back in for the occasion.
So any reason for me to NOT get the EZOPower 4100mAh? If I get 2, I'll probably also want an external charging solution so I can charge one while using the other. Also is there a hardshell case (with a built-in stand) available that fits the phone with the larger battery door? BTW unavailability of those two things won't be dealbreakers for me getting the battery. I had an extended battery for my G1, and that phone finally bit the dust after ~4+ years. (I wonder if my SGH-T699 will last that long…)

would somebody care to explain to be why nfc is dependand on the battery?
the batteries have just the same 4 connectors as any other cell battery i always had in my hands.
or are they made of materials that don't shield the nfc waves passing though?

nfc antenna is in the battery casing. NFC antennas go for about $5 on ebay, if you figured out which two connectors go to the nfc you could probably set up your own if your battery doesn't support it.
Sent from my SGH-T699 using xda premium

Can anyone confirm whether the Relay accurately reports on the extended batteries? I'm currently using a patched Droid 3, but I'm starting to find its limitations too restrictive, and I'm thinking of plonking down for a Relay.

EZO battery
orange808 said:
I had purchased a EZO high capacity battery with cover from Amazon--the same day I ordered the phone. That was months ago and I see the battery is no longer available on the site.
That's a shame, because the package was reasonably priced, the cover fits well, and the battery works as promised.
The device can run about ten consecutive hours for me running CM9 without any CPU profiles and with the governour set to interactive.
If I'm going to be away from a charger for a long time, I've found that setting the device to powersave is tolerable for most applications and the battery goes from good to ridiculous...
The additional bulk will turn off some buyers; however, I have found that it makes sliding the keyboard open much easier...
If you can find an EZO battery and you don't mind the extra bulk, I recommend one.
Click to expand...
Click to collapse
I also picked up two EZO batteries. They have a well made cover and last for twice what stock does. Unfortunately it didn't have a NFC antenna and both have now swollen up to the point they no longer fit. While I had left them plugged in after full charge, they seem to stay warm and not tolerate it well. Can't say how well they could have lasted if better cared for, but abuse or overcharging seems to effect them quickly.
Does the mugen or other brands also have issues? If anyone else have suggestions.
---------- Post added at 11:21 PM ---------- Previous post was at 11:08 PM ----------
5318008 said:
Can anyone confirm whether the Relay accurately reports on the extended batteries? I'm currently using a patched Droid 3, but I'm starting to find its limitations too restrictive, and I'm thinking of plonking down for a Relay.
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Well, it just displays a percentage. It at least seems accurate while logging with Juice Defender's graph, it would track down at fairly consistent rate until charged or out of power. As for swapping over to a Relay, It's about as well supported as any slider out right now. I haven't been disappointed.

ezo
the EZObattery rocks. For $19 (I got mine on ebay) I get 2 days and a few hours into the 3rd before needing a charge.
I have the same issue kilr00y mentioned about it not fitting into pouches or cases except I found now that the phone is harder to flip open and safely hold at the same time while doing 90 other things at once which is when I always need to use the phone. I keep an aftermarket case on the front screen part but can't find an extended back case. I made my own from a tube of black silicone but would love to hear it if anyone finds another option. I don't mind if the phone turns into 1988 brick style size so long as the battery lasts and I don't crack the screen again.

I was looking at extended batteries and if I'm not mistaken, there seems to be a genuine extended battery that should work with this phone. Just would need an extended battery cover. Battery model is: EB-L1K6ULZ (Link)

rudias said:
I was looking at extended batteries and if I'm not mistaken, there seems to be a genuine extended battery that should work with this phone. Just would need an extended battery cover. Battery model is: EB-L1K6ULZ (Link)
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Click to collapse
It looks good. Be aware that most "extended" battery will not last long... In particular when they have a lower voltage than the original battery. Lot of battery with higher mAh run at 3.7V instead of 3.8V this make it last shorter than the original.

I've had 2 of the EZOPower 4100mAh batteries, and am experiencing the same problem that stonefoz mentioned about the batteries swelling. In my case, for example, the current one has gotten to where the cover will just spontaneously pop off, and the battery will dislodge, forcing the phone to lose power. Also, regarding his "staying warm" comment - sometimes when I was doing something extensive on the phone, it'd sometimes get so hot, especially the keyboard area, that I could barely hold it, and that concerns me some.
I believe the second one has lasted longer than my first, though. It's not quite as bad now as my first was when I replaced it. I bought my first one May 18, 2013, and my second one September 18, 2013, 4 months later. It's lasted till now, May 7, 2014, 7 and a half months later, but it's about time to replace it.
It looks like it's no longer available, but I was thinking I should try a different one anyway.
One option is this 4600 mAh Mugen battery for about $90, and another is this 5000 mAh MPJ battery for about $35. The MPJ does say it's only 3.7 volts, which according to scaltro could be a concern with longevity per charge.
I definitely would like better battery life. I've noticed that playing FarmVille 2: Country Escape is quite a drain - I'd go from full battery to getting the low battery warning after only something like 2 to 3 hours or so, even with the EZO battery. Earlier, I popped in the factory Samsung battery, topped off its charge, then decided to test battery life playing FV2. I also turned on bluetooth (and sent the sounds to an external speaker), cranked the screen brightness all the way up, and turned off power saver mode, in an attempt to get a "worst-case scenario". I tried turning on WiFi (we have a hotspot here now) but it wouldn't connect to the game server, so I just went through my unlimited+unthrottled 4G.
The results:
2:45am - battery full, unplugged
4:15am - battery 22% (I checked it a few times along the way periodically, but neglected to note the times)
4:23am - battery 14%, had just gotten the battery low popup warning
4:33am - battery 5%, battery critically low popup warning
4:35am - battery 3%, then I went and plugged it in.
So, it lasted only about an hour and 50 minutes from full to 3% remaining. I'm hoping a good battery would be able to go all day and all night and into the next day with similarly-intensive use. (No I wouldn't be playing games the entire time of course!)
Personally, if the $35 MPJ battery would be good enough, and significantly better than the EZO, I'd prefer to go for that one.
I'm wondering, though, if the $90 Mugen is a huge leap up in quality, though (disregarding the NFC for now which I haven't had to use)? It's a bit rich for my blood to drop all at once on a battery for a phone ... BUT, their website tells me they accept returns up to a year later (and I've gone through TWO EZOs in that time), which gives me some hope. If, overall, I'd be spending less by getting one Mugen and it outlasting 4 or 5 EZOs (if they were still available), I'd get that.
On a side note, it'll be a while before I can afford to replace my phone, but when I do, I'd really like a good QWERTY keyboard. I see that very few phones come with them now, though, and the ones that are are near the bottom of the barrel spec-wise. I'm thinking I'll need to get an external compact bluetooth or USB keyboard with my next phone, and expand my options for the phone itself. Ideally I'd like to get one that I can put in a flip case, with the phone in the other side of it, and close it when I'm not using it. (Although, there is the concern with getting the phone out quickly to answer calls, although I maybe only talk 25-50 minutes a month or so.) Any suggestions on what to look for in the case/keyboard department, for example? Chances are it won't be till 2015 at the earliest (and my wallet hopes my Galaxy S Relay 4G will last through 2016 or so unless it dies or something else goes seriously wrong) before I get a new phone, but I like to start my search early. When I do get one, I'm hoping it'll last at least 4-5 years, and maybe stretch it to 7-10 if I'm pressed for cash then.

My high capacity EZO battery eventually bloated and swelled up--after a year. I replaced it with a Mugen battery. Both came with new back covers and make the device about as chunky as a Sidekick II.
My device can run OpenGL applications for about 9 hours straight with the brightness set to 50%. It's about the same for movies. I get decent signal at my house and GPS is disabled when I am not using it. I use Green Power and Greenify to save battery when the device is locked, but that wouldn't affect using the device.
I am on an official Cyanogen nightly, so there's really no battery saving hocus pocus at work here.
Make no mistake, an extended battery will get you about 9 hours of heavy use. I thought I was going to die when I used a stock battery for a week waiting for my new Mugen to replace the old EZO. The device literally couldn't survive one day of use for me.

orange808 said:
My high capacity EZO battery eventually bloated and swelled up--after a year. I replaced it with a Mugen battery. Both came with new back covers and make the device about as chunky as a Sidekick II.
My device can run OpenGL applications for about 9 hours straight with the brightness set to 50%. It's about the same for movies. I get decent signal at my house and GPS is disabled when I am not using it. I use Green Power and Greenify to save battery when the device is locked, but that wouldn't affect using the device.
I am on an official Cyanogen nightly, so there's really no battery saving hocus pocus at work here.
Make no mistake, an extended battery will get you about 9 hours of heavy use. I thought I was going to die when I used a stock battery for a week waiting for my new Mugen to replace the old EZO. The device literally couldn't survive one day of use for me.
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Ahh, so your EZO bloated too, just took a little longer than mine did.
Sounds like the Mugen (if that's the one you describe getting 9 hours of heavy use) has relatively decent life. Would you say it's significantly better per charge in that respect than the EZO was when it was good?
Also how is the Mugen for longevity, as in not swelling, etc? If I buy a Mugen, would I over the long term pay the same or less than if I had kept buying EZOs? Paying $90 in one blow seems a bit heavy on the wallet, but I'd do it if I'm getting that much better quality & longevity.

pianoplayer88key said:
Ahh, so your EZO bloated too, just took a little longer than mine did.
Sounds like the Mugen (if that's the one you describe getting 9 hours of heavy use) has relatively decent life. Would you say it's significantly better per charge in that respect than the EZO was when it was good?
Also how is the Mugen for longevity, as in not swelling, etc? If I buy a Mugen, would I over the long term pay the same or less than if I had kept buying EZOs? Paying $90 in one blow seems a bit heavy on the wallet, but I'd do it if I'm getting that much better quality & longevity.
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Honestly, I got about the same results with my EZO battery: just over 9 hours of constant heavy use. Other than the fact it swelled up, it worked great. I guess there was a reason it was so cheap...
I had a Mugen battery for my Sidekick 4G before I bought the Relay and it still works great. (I loaned the SK4G to a friend that broke his phone.) My new Mugen hasn't had any problems, but I've only had it a few months.
Combined with TeamApex's Cyanogen and this awesome QWERTY keyboard, my extended batteries have made this phone the most productive and useful device I have ever owned. I can't say enough great things about ApexTmo, the Relay, and extended batteries.

battery life ?

I downloaded cm9.1 r11 i think and im getting 1 day 11hrs with no use , no data turned on , and thats just not acceptable. what is the rom with the best batt life for this device?

Try one of the stable kernels listed for the ROM instead of the Linaro one. I find them to be more stingy with battery life. The r7b one works best for me. JMO...

You ought to give Wildchild Ice a try. XMC wasn't satisfied with it but I LOVED it. My wife ran it for about 6 months simply because if she didn't use her phone it would go DAAAAAYS before needing charged. I liked it because everything just seemed to work!

Just get the mugen extended battery. I use my phone heavily for 36 hours (excluding 5-6 hours of sleeping time) before charging.

How much did you have to give for it though?

WeekendsR2Short said:
How much did you have to give for it though?
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It was expensive: $90! It also adds a bit of bulk to the device and it doesn't fit nicely in my iPega game controller. But for me it was worth it since now I don't need to worry too much about battery life.

The thing about it now though is an extra working DoubleShot is about $100 on ebay and a good ole trusty Anker battery is just about $8. Just sayin'.....

WeekendsR2Short said:
The thing about it now though is an extra working DoubleShot is about $100 on ebay and a good ole trusty Anker battery is just about $8. Just sayin'.....
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Good points, but neither of these (an extra device or the anker battery) would give me the functionality I am looking for (i.e. very long battery life). It has come in very handy on several occasions, like I needed to take a quick, can't-miss-it family photo after being out all day away from a charger. I am getting the Anker anyway. I can have the Mugen for when I know I will be away from a charger for 10+ hours and have the slim battery for other times.

drklaw said:
Good points, but neither of these (an extra device or the anker battery) would give me the functionality I am looking for (i.e. very long battery life). It has come in very handy on several occasions, like I needed to take a quick, can't-miss-it family photo after being out all day away from a charger. I am getting the Anker anyway. I can have the Mugen for when I know I will be away from a charger for 10+ hours and have the slim battery for other times.
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So, what you are actually saying is:
to compensate for OP's some ROM's bad coding that is wasting CPU cycles on whatever it is doing and draining battery - you suggest him to buy bigger battery? It's like installing additional gas tank for a car that has inefficient engine instead of fine-tuning the engine... IMO it's unacceptable.
"Find better kernel or ROM" is what should be suggested in reply to OP, not "buy bigger capacity battery". Just my opinion...