Develop Bugs

yoobao battery question

I was wondering if anybody could tell me if the Yoobao 3000mah battery is the same size as the Seidio 3500? I have an innocase extended and holster right now that fit great with the Seidio 3500 installed and I was wondering if I could still use them with the Yoobao battery.

The Yoobao battery is slightly smaller.

its just a bit smaller, it runs great, i have noticed that it will not charge fully in the evo but thats pretty much common knowledge now, i do leave it on the charger for an extended period of time and it will in fact still charge the battery because with no apps running, i take it off the charger as soon as its green, let it sit idle over night and wake to 70%, i leave it charging 2-3 hours after its green and take it off the charger, again no apps in background, leave it idle over night and wake up to 90%, i do not understand why but it works, i know i strayed from the question but i thought this might help someone who doesnt want to use an external charger and i dont have to create a distracting thread with yet another battery tip that may just be a placebo effect

Any idea if the innocase extended will fit on the phone with the yoobao battery and cover installed?

I'm not sure. I ordered the seidio extended rugged for my seidio battery. I will tell you when I get it next week.

Extra Batteries / Extended Batteries / Portable Chargers

The great question:
Is it better to 1) carry extra batteries with me and just trade them out as they die but maintain the light, sleek form factor of my EVO, 2) get an extended battery that will make my phone thicker and significantly heavier (resulting in fewer case choices or cradle fit issues) or 3) get an external travel battery that plugs into my phone via USB and recharges my battery with another battery?
Well each has it's pluses and minuses:
1) Extra Batteries: The problem is, of course, transporting them. You also need to buy an external charging dock to keep them juiced and the phone has to be taken apart to replace them. With some cases such as the Otter Defender, this can be a significant hassle. As far as transporting them, it is easy to buy an unobtrusive $10 leather zippered pouch and carry them that way.
2) Extended Batteries: Easily charged in your phone and not requiring replacement during a long day, these batteries are an attractive option. However, say goodbye to your sleek and slim EVO. These add significant heft to your device and make it twice as thick. Also, unless you pay top dollar for a name brand, you risk having a "fake" product of questionable build and even more questionable capacity. Watch a video of a "Lion" battery fire and you will realize you don't want to play with cheap knockoffs any more than you would buy knockoff medicine from a guy in China to save a few bucks. And oh yeah, good luck finding a case that fits your "pregnant" evo.
3) Portable Battery Chargers: Again, these can be an attractive solution. They can come in many sizes (up to 8000 mah) and can recharge your phone even as you use it. The issue is bulk. One 5400 mah device is about the size of your EVO. So, imagine carrying 2 EVO's with you (never mind the USB cord). Compare this to carrying a spare 1500 mah battery in a small leather pouch (which you would hardly notice is even there). Also, these charge your phone using USB cable. This means a maximum charging rate of 500 ma. If you are using your phone for power intensive tasks such as Google Navigation, your phone will still run out of power even if it is plugged in.
CONCLUSION:
Weighing all of the factors, I recommend getting a couple extra 1500 to 1750 mah OEM batteries along with a wall charger (don't be cheap - these things can go boom). Simply carry them in a small zippered leather pouch you can pick up anywhere they sell wallets. A fully charged battery in your phone and just one of these "stand-bys" should get you through even the most grueling day.
The only hassle here is physically switching them out; however, that is less of a hassle than dealing with a "double-thick EVO" extended battery or an "extra EVO in your pocket" external travel battery. You should only have to change the battery out once in a 24 hour period. With the other solutions, you have to deal with their negative aspects 24/7.
You keep your slim form factor, you not are limited by case choices and you extend your power - win.
** This conclusion assumes the user will eventually have access to AC power to recharge sometime in a 24 hour period. For camping, etc, where you will be away from wall/car juice for extended period, the external travel battery may be your best choice (and you can carry it in your backpack).

It looks dumb and feels kind of bulky, but there is no way I'm turning off my phone, taking off the case, and prying off that flimsy batter door all of the time. I hate that process and feel like something is breaking every time. Big pregnant evo for me.

I still have to laugh when people talk about the added "bulk" extended batteries like the Seidio adds to the phone . Most of the time people who see my phone and realize I have an extended battery usually respond with "Well thats not that much bigger" . Im not shooting down your opinion I just feel this obsession with have a super thin phone is a bit overboard . Hell I remember years ago when phones were on the trend of being super small , hell I remember seeing one model that when it folded up I swore the damn thing was just alittle bitter than a book of matches . Now the trend seems to be bigger phones or atleast leaning in that direction (examples : HTC EVO , DROID X , Epic 4G isnt small either) . Overall like the OP outlined it comes down to a choice , longevity using all the features of the phone (bigger batter) or slim phone with "enough" power to make it through the day if you micro manage all the features on the phone . Ive tried both worlds , Ive tried the stock battery which did make it through the day but just barely . I currently have the 3500mah battery installed and I can tell you this now I wouldnt go back to the stock battery . The added size now fits the size of the phone in my mind . The phone is already tall and wide , Hell the Droid X is even taller and wider (actutal casing of the phone not the screen) . In the end its your choice and its your phone , whatever makes you happy with it you go with it . Screw what everyone else might say about it LOL

Biofall said:
It looks dumb and feels kind of bulky, but there is no way I'm turning off my phone, taking off the case, and prying off that flimsy batter door all of the time. I hate that process and feel like something is breaking every time. Big pregnant evo for me.
Click to expand...
Click to collapse
As a business man who wears a suit every day, my biggest issue is that there is no way to carry my phone (other than a belt clip which is way too geeky for me) in my suit pocket or pants without looking like I have either breast implants or an erection.
Actually, you have your "pregnant" EVO "all the time". You only have to change your battery once Still, everyone has their preference and that's why I created the thread.
** Being a flash-a-holic, I have become quite accustomed to pulling my battery (boot loops and all) so I am probably less intimidated by the process than the average user. For me, changing a battery out takes maybe 10 seconds at the most. When compared to carrying around a thicker, heavier phone all day, the choice is clear (10 seconds of hassle vs 24/7 discomfort).
Again, no "right" answer here.

I use spare batteries. I have an extended but I hate the way it makes my phone look and feel. I keep a couple charged spares in the car at all times and another couple in my computer bag just in case. I would much rather do that then have an ugly block sticking out the back of my phone. My phone lasts well over a day on a charge so I never really end up swapping them out except for in the morning when I put a fresh one in. I usually still have about 50% left when I swap them out in the morning. I never charge my phone directly, I always just swap the battery with a fresh one and charge them with my wall charger. It only takes a minute to swap them and the daily reboot never hurts. I bought all my batteries on ebay (except for my seidio extended which NEVER gets used) and all eight of them cost me about $50 combined, which is cheaper than the one seidio.

_MetalHead_ said:
I use spare batteries. I have an extended but I hate the way it makes my phone look and feel. I keep a couple charged spares in the car at all times and another couple in my computer bag just in case. I would much rather do that then have an ugly block sticking out the back of my phone. My phone lasts well over a day on a charge so I never really end up swapping them out except for in the morning when I put a fresh one in. I usually still have about 50% left when I swap them out in the morning. I never charge my phone directly, I always just swap the battery with a fresh one and charge them with my wall charger. It only takes a minute to swap them and the daily reboot never hurts. I bought all my batteries on ebay (except for my seidio extended which NEVER gets used) and all eight of them cost me about $50 combined, which is cheaper than the one seidio.
Click to expand...
Click to collapse
+1 My reasoning exactly.
This is purely theory, but I have the feeling that younger users and those in manual labor type jobs will opt for the extended battery, whereas those of us where we have to wear a suit to work and sit at a desk or visit clients all day would prefer the swap-out just for appearance sake. A construction foreman is not going to want to swap out a battery with dirty hands in 30 degree cold but he(she) won't mind how the fatter phone looks.
In conclusion, those more concerned with the look and feel of the phone will opt for extra oem's, those who are looking for pure utility will opt for extended.

I've had my EVO for almost a full month, and yet its still caseless and exposed because of this dilemma. I'm leaning more towards keeping it slim and having a wide variety of cases to choose from. Obviously going to something like the 3500 would require a new battery door. So, what's the maximum battery size the EVO can hold before needing the new door? I've seen 1600, 1700, 1750, 1800, and 2000 mah batteries. Also, would these slightly stronger batteries make ANY difference? I've seen reports saying those batteries are tested and not actually as strong as they say.
Thanks in advance....
AGSLight

ROOT YOUR PHONE. solves all the troubles of extra batterys. I have 4 batterys i bought before rooting. Now they just sit in different areas around the house and car because i never use them. Easily 18hours of battery with decent amount of use.

Well, I super use my phone;all day pounding.....even the Sprint extended barely makes it about 18hrs.....so I prefer the constant functionality...!
Sent from my PC36100 using XDA App

samsung sII battery case

Just got it in the mail - had pre-ordered it from Mobile Fun about two weeks ago.
Someone else posted pics already, but couldn't find the thread - here are my own.
Note, the case acts as a battery charger, and starts delivery electricity as soon as you put the phone in. There is no switch on it. I'll have to see in the coming days, but it looks like it's necessary to only put the pack on when you need it.
Things I fear but may be unfounded:
it won't be practical to leave the case on at all times
need an extra charger to charge them seperatly and efficiently
I hope I'm wrong, and hope I can just keep it on at all times, and charge both the battery and phone at the same time using one charger.
Thanks to Eiraku posting in this thread, I was able to find the original thread for this battery pack:
http://forum.xda-developers.com/showthread.php?t=1110441
Mods please feel free to merge subjects.

Here are more pics

Isnt it a bit harmful to always have the battery at 100% charge level and even have trickle charge, they should have implemented a switch or at least some control mechanism to have it start charging only at around 50-80%

I think you're right, and indeed, the case start charging the phone even if the phone's battery is full.
From the manual:
"When not in use, remove your phone from the power pack."
Kinda of a let down. But I'm still happy to have it for my asian trip at the end of the week - electricity will sometimes be a luxury.

The purpose of this case is kinda moot if it does not have a switch and cant be kept in use.

Thanxs for the pics...I ordered this case from expansys a month ago and am still waiting on it to ship. Looks great.

So what is the purpose of this button

wiaza100 said:
So what is the purpose of this button
Click to expand...
Click to collapse
There IS no such button. Only the battery tester button (which is useless).
Cost cutting, Samsung? You delayed the battery pack to remove that freaking power toggle?
Personally I can't wait for PowerSkin to come up with something better (OR that urban legend official 2000mah internal extended battery with new cover to come out). But as of rite now, I'll take what I can get.
To OP: thanks for the nice pics. They're much better than mine anyway. And welcome to the club!

There is indeed a button as indicated on the pic you have there, but on mine, it doesn't quite look like that. There is no marking on it or next to it - it's a simple push button which function is to indicate battery level. When you push it, the battery indicator will light up green, blue or red according to its energy level.
The pic you have may be a prototype or maybe a different version other people are going to get?

Without power toggle
I will cancel the order

Guys,
Surely just because there is more power available behind the standard battery, doesn't mean the phone will suddenly start drawing more power from it?. A car doesn't consume more petrol when the tank is full... how would this be any different to putting a ...say 2000 mAH battery (if it becomes available) instead of the original OEM battery??..
More mAH added by the sleeve should give extra run time...
Riz

I'm no electrician, but I like the full tank analogy.
Imagine the tank is full, but let's say I keep pouring fuel in the tank while the engine is running ... kinda of a waste as the extra fuel will spill - not to mention the danger.
So the question here, if the energy or extra energy delivered by the battery isn't being consumed, is it wasted? Is there danger if there is "spillage" in the form of heat? This phone can already get incredibly hot it you use it as a GPS for an extended period of time.
I'm still concerned about what the manual says about removing the pack when unused.

Actually, I have all confidence that this is a "smart" charger, in the sense that it will only top up the internal battery as necessary.
Using it as an "extender", I have no issues getting 3-4h extra on really heavy, constant screen on 3g surfing. It didn't even get hot at all, so power was NOT needlessly drained.
As a "charger", I got from 6% to about 42% from a fully charged extpack. In this config, the case did get quite warm, which indicated that it was quickly expending its reserves to charge the SGS2.
For a 1300-ish mah pack, this is more then consistant performance in my book, from my experinces from owning multiple iPhone 4 batt cases.
Only issue is with the lack of power toggle, there's much less flexibility allowed. You can't choose to keep the extpack as an emergency reserve UNLESS you take it out.
Also, it only takes in 700ma (the Samsung charger is rated at 750) and gives out 650ma, which means that in the event that you are charging a fully depleted extpack and say a 50% power left SGS2, the charging of the extpack will take FOREVER (phone first, then case).
But charging the SGS2 takes forever to begin with, so...

I'm no electrician myself...
But... about the car engine.... there are fuel governor controllers which only allow enough fuel as is needed to enter the combustion chamber...
but.... we talk of batteries... the way electrons work.... my understanding is...
flow of electrons is decided by the potential differnece available for them to travel across.. the higher the potential difference... the more electrons would flow...
So, lets say... the SGS2 has a power consumption of 100 milli-amps (based on whatver the volgtae rating is).... a 100 mah battery would run it for 1 hour... a 500 mah battery would run it for 5 and so on....
Adding a battery in parallel.... would not increase the power consumption from the original spec'd power requirement of 100 milli-amps... it'll just increase the total amperes available to run the device... so.... more ampere-hours available... hence longer hours available to run the phone
Quite simply, it is similar to leaving your phone connected to the charger... I'm sure most of do this every night for the duration of the night....
leave the phone connected to the charger... i.e.

Ars Technica has a good article on batteries. It basically says this thing should have a power button!
http://arstechnica.com/gadgets/news...-is-the-best-way-to-use-an-li-ion-battery.ars
"On the other end of the spectrum, keeping a Li-ion battery fully charged is not good for it either. This isn't because Li-ion batteries can get "overcharged" (something that people used to worry about in The Olden Days of portable computers), but a Li-ion battery that doesn't get used will suffer from capacity loss, meaning that it won't be able to hold as much charge and power your gadgets for as long. Extremely shallow discharges of only a couple percent are also not enough to keep a Li-ion battery in practice, so if you're going to pull the plug, let the battery run down for a little bit. "

I believe that the phone, like the iphone, and most laptops, don't fully throttle their devices on battery. So maybe when it's plugged in it would use more power thinking that it's tethered into the wall. I had that issue with my iPhone 4. I had a battery case for it. The phone itself could last me say, 6 hours on its 1400 mah battery. When I put the 2000 mah battery back on it, before the battery pack died, was only 5 hours. So my phone consumed 2000 mah in 5 hours, while on the internal (smaller battery) it consumed it within 6 hours. Hmm... That's not right. So, then I investigated it and while plugged in the phone went into "performance mode"
Is that at all possible on THIS phone as well? hehe.
I'm not big on the whole battery switch, so, I'm skipping this case. I wrote power skin and let's see if they release one for the SGSII. I'd love it if they did

zkyevolved said:
I believe that the phone, like the iphone, and most laptops, don't fully throttle their devices on battery. So maybe when it's plugged in it would use more power thinking that it's tethered into the wall. I had that issue with my iPhone 4. I had a battery case for it. The phone itself could last me say, 6 hours on its 1400 mah battery. When I put the 2000 mah battery back on it, before the battery pack died, was only 5 hours. So my phone consumed 2000 mah in 5 hours, while on the internal (smaller battery) it consumed it within 6 hours. Hmm... That's not right. So, then I investigated it and while plugged in the phone went into "performance mode"
Is that at all possible on THIS phone as well? hehe.
I'm not big on the whole battery switch, so, I'm skipping this case. I wrote power skin and let's see if they release one for the SGSII. I'd love it if they did
Click to expand...
Click to collapse
There's also the fact that a battery directly wired to the device will always perform better per mah vs an externally mounted battery. Heat loss through the external connector, yada yada.
If you're afraid of "performance mode" (which I also think some phones have), just use SetCPU to override it, like I do.
I'm hoping PowerSkin comes up with something soon too - as a case, the ExtPack has really crappy all round protection, especially on the front (getting the SGP Glas protector because of this).

i'd go for the case only without the battery.... it looks quite dangerous...

[Review] 3200mah Battery Case

I found this extended battery case on eBay for £15.99 with free UK delivery.
http://pages.ebay.com/link/?nav=item.view&id=180939675217
It fits my SGS3 perfectly, very secure clip at the top and the micro USB connector at the bottom keep it in place very nicely.
It does effectively double the weight of the phone, but for added battery capacity I'm willing to put up with the extra weight.
It has all the required cut outs for camera, light, speaker, headphone jack, and the microphone.
The volume rocker and power button are exposed, and the case does get in the way a little, but not much, will probably prevent accidental button hits in my pocket.
It has an integrated stand which seems sturdy and clips snugly and securely into the back of the case. It does a good job of keeping the phone at a comfortable viewing angle and seems quite strong.
As for the battery part of this case, there are 4 blue status lights that show remaining capacity and an on/off button along the bottom. I have yet to properly test capacity, it came with about 50% charge, and I charged it up to full in about 2 hours from that, and charged the phone at the same time from 56% to full. I'll update this post when I see how well it charges the phone from around 1%.
I'll post some pictures of the phone in the case later, any questions are welcome.
Update: OK, so the battery case managed to get my SGS3 up to 84% from 4%, so an 80% charge without needing to reach for a charging cable is pretty good for a Chinese eBay battery, can't complain for the price!
Sent from my SGS3

1. form:
what are the end result dimensions? I have the hyperion 4200MAH battery and cas, and was wondering mow much larger yours is than mine.
for reference mine is: 140mm long x 73mm wide x 18mm deep. (with the hyperion honeycomb case)
2. function:
what kind of change did you get in battery life? for reference, i more than doubled.. perhaps closer to 2.5 times my battery life.

scarrmrcc said:
1. form:
what are the end result dimensions? I have the hyperion 4200MAH battery and cas, and was wondering mow much larger yours is than mine.
for reference mine is: 140mm long x 73mm wide x 18mm deep. (with the hyperion honeycomb case)
2. function:
what kind of change did you get in battery life? for reference, i more than doubled.. perhaps closer to 2.5 times my battery life.
Click to expand...
Click to collapse
1. Dimensions are 148 x 73 x 14
2. This is an external battery pack, not a battery replacement, and as stated in original post, I have not fully tested the charging capabilities yet, will be reporting on those later. From the capacity of the battery I would guess that it charges the battery 1 1/2 times, but that's only a guess, this is an eBay Chinese battery after all.
Sent from my SGS3

Just got my SGS3 down to 4%, turned on the battery pack, let's see how long this takes to charge!
Battery Widget Reborn says it should take 4hr14m to recharge!
Sent from my SGS3

i have the exact same battery case, not sure if i have a defective one, it only charges my S3 up to 48% so its kinda disapointing only around 1400+Mah from the advertise 3200Mah
i tested it with a fully drained S3 (waited till the phone turned off by itself) and fully charge the case and installed the phone turned off
anyone else tested its capacity?
might just change the internal battery later on

jlodvo said:
i have the exact same battery case, not sure if i have a defective one, it only charges my S3 up to 48% so its kinda disapointing only around 1400+Mah from the advertise 3200Mah
i tested it with a fully drained S3 (waited till the phone turned off by itself) and fully charge the case and installed the phone turned off
anyone else tested its capacity?
might just change the internal battery later on
Click to expand...
Click to collapse
Well mine is charging at the moment from 4%, currently at 16% and still going strong, I'll report back with results when either the phone reaches 100% or the battery case dies trying.
Edit: could be some time though, the battery case output is only 500mah!
Sent from my SGS3

xiaocai said:
I got a 2100mAh mobile phone battery& Charger for $17.49.Strong capacity and long standby replacement battery.
Click to expand...
Click to collapse
Isn't the stock battery 2200mAh?
Sent from my SGS3

OK, so the battery case managed to get my SGS3 up to 84% from 4%, so an 80% charge without needing to reach for a charging cable is pretty good for a Chinese eBay battery, can't complain for the price!
Sent from my SGS3

Bigger battery

Anybody can think of a battery that has more mah but same physical size as the one this device currently rocks? Would be awesome if we could fit the battery of the latest moto device but I believe that one is thinner.
Sent from my ONEPLUS A3000 using XDA-Developers mobile app

Swapping batteries in from other devices is a bad idea... Not only are they not likely to fit inside the case (check out some teardowns of the OP3) but the dash charge is calibrated for your battery, not for some other battery. Putting in a different capacity battery can cause some pretty hefty damage... Do some research into battery tech, these batteries generally have as much power capacity as physically possible based on the battery chemistry, you won't find a (legit) battery with a higher capacity of the same dimensions.
Remember those hoverboards that seemed to spontaneously ignite at random? more often than not it was due to poor wiring, faulty batteries, or being charged / discharged at a rate greater than what was designed for.
Give it a couple weeks / months I'm sure there will be a battery case developed for the OP3 but with how quickly this phone charges its designed to be topped up semi-regularly instead of charged once and run all day (or multiple days).
I've heard people say they are on transit for long periods of time and don't have access to a outlet, try looking for a battery bank to charge your phone if you feel the need...
And yeah, I wish they made the phone just a LITTLE thicker and put a larger battery in it. Really, I don't need a phone thin as a pancake, it could have been the same size as the OP2, ONE extra millimeter could fit more power, removed the silly "camera bump", and not impacted feel or ergonomics in any meaningful way.