Develop Bugs

has anyone tried these cheap 1800 mah chinese batteries from ebay?

http://cgi.ebay.com/2-x-1800mAh-bat...ewItem&pt=PDA_Accessories&hash=item4aa2caf8e2
it doesn't seem anyone has bought any from him yet. I'm wondering how the Android system deals with recharging these, since it is expecting a 1500 mah right? or will it adapt?

Shyfe said:
http://cgi.ebay.com/2-x-1800mAh-bat...ewItem&pt=PDA_Accessories&hash=item4aa2caf8e2
it doesn't seem anyone has bought any from him yet. I'm wondering how the Android system deals with recharging these, since it is expecting a 1500 mah right? or will it adapt?
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Yeah the android system doesn't really care, it measures the battery in percentages.
I've got a cheapo 2000mAH that I picked up for my Hero, it lasts a little longer than the OEM battery. I do notice a difference. When my phones battery is low, I can tell what battery is in it without opening it, just because I know how long I've been off the charger.
They're cheap. You can also find a deal for 2 1500 mAH batteries and a wall charger for $10. I went with that..

I'm buying one because they are red lol.. j/k well for $10 more than the China seller, you get "300mAH" more and this guy is in California so shipping should not take close to a month

I was expecting to be able to offer him $10, but he has that set on auto reject so I just went with the 2x 1500 mAh for $10.

I wonder what brand these batteries actually are? If they are just rebranded Mugen's, then according to batteryboss.org they are worse than OEM 1500mAh.

this seems like a good deal http://cgi.ebay.com/1500mAh-Battery...ewItem&pt=PDA_Accessories&hash=item43a048184b
battery, charger, and case for $13. but its china again

they are all from china

BrianDigital said:
they are all from china
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not quite sure what you mean, but ultimately yes, they are all from china. I just thought it was a good deal, but too bad it wasnt shipping from somewhere in the US. I'm not too thrilled to order things from across the world.

I bought the 2x plus charger for $10...They seem to be holding up pretty well, maybe a bit shorter life than the stock one, but if you have three batteries and can rotate through 2 of them while keeping one on the charger, you'll never have to plug your phone in again...I would say BUY BUY BUY, for the price, you can't go wrong, it's worth the standalone charger with a built in usb port.

I am using the 10$ 2x1500ma with the charger... free shipping too. I have only been using one of the Chinese batteries, they are great, they last about, or maybe a little less. I just put the real and the spare one in my wallet... so beast.

I doubt those things are even 1800mAh, they are probably the same 2x1500+Wall Charger $10 deal just a different color/sticker. Its the same exact charger and same exact sticker thats on the 1500mAh ones just it says 1800mAh and the battery color is red.
I purchased the $10 2x1500mAh + Wall Charger bundle about a week ago and have been putting them through their paces ever since, they have been fine for me. About the same as an oem battery, maybe a tiny tiny bit less but nothing really noticeable unless you have OCD like me lol.
I would just spring for the $10 one, search my threads if you need the link. Best of luck.

I know the OP has already purchased the 2x 1500 mah batteries, but I thought I'd add my 2 cents for anyone else thinking about batteries.
I bought the 2x 1500 mah batteries plus charger too. I don't see any difference between them and the OEM battery. I actually do wish they were red so I could use them if I buy the clear battery door that's being discussed in another thread, but not enough to spend twice as much.
We just did a week-long vacation and I bought six batteries for my wife and me to share (coming from the iPhone I went a little crazy). We often switched a battery while out all day, but the only time I needed to use three was when we flew back -- which was a 15 hour ordeal due to a canceled flight. Thank god I had all the battery power I could need without having to resort to $75 external battery packs.

I also bought two of the 1500 mAH batteries, and they seem to work fine. I haven't really noticed much of a difference between the cheap ones and the OEM battery.

do people have a phobia of plugging in their phones at night?

notown775 said:
do people have a phobia of plugging in their phones at night?
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only if its an iphone

2x Battery + charger 2000mah($13.00)

Gonna try them out...not sure what i'm gonna get but for 13 bucks worth a try
http://cgi.ebay.com/2x-2000mAh-Batt...330459330057?pt=PDA_Accessories#ht_4942wt_911

Highly doubtful 2000ma batteries, probably 1500ma batteries that are really 1300ma. Tutoit on ebay I have 2x1500ma batteries for a 9.98$ shipped with a charger, I would get that instead.

yeah, either get the 2 1500s and the charger for 11 50
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290444598681#ht_1730wt_1137
or the 1800 and the charger for 11 50
http://cgi.ebay.com/1800mAh-Battery...250661003311?pt=PDA_Accessories#ht_3119wt_911

jayv1717 said:
Gonna try them out...not sure what i'm gonna get but for 13 bucks worth a try
http://cgi.ebay.com/2x-2000mAh-Batt...330459330057?pt=PDA_Accessories#ht_4942wt_911
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I was just looking at this... seems like a great idea... the extra charger allows you to keep a second battery charged without using the EVO to do it. Even if it's really a lower rated battery... still a good deal.
Did you try it?

Trident said:
I was just looking at this... seems like a great idea... the extra charger allows you to keep a second battery charged without using the EVO to do it. Even if it's really a lower rated battery... still a good deal.
Did you try it?
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Click to collapse
I ordered it, but still waiting...those hong kong shipments take a while, i'll let you know as soon as I test it out
Sent from my Htc Evo 4g

I have a set of the 1500 mah batteries with the charger as was posted above, and I have no problem with them. I use my OEM battery most of the time, but sometimes it is handy to have some fully-charged back-ups. Honestly, I don't see much of a difference between what my OEM battery lasts and the knock-offs. For the price, you can't beat it.

so how are the batteries?

normally i would stay way from cheap Chinese crap on eBay, but with what i read here on the xda boards in regaurds t othe ok qualitybeing good enough that they might work out, so i ordered 2x1850 plus charger from ebay. i dont have time to do any real testing but i can say that:
1 not having to charge the battery from the phone is nice
2 i always have one on the charger, one in my pocket and one in the phone.
3 charging in the base seems to get me a better charge
4 i cant tell a difference between oem and knock offs, although you would think that the 1800's would last longer than the 1500oem but we know how that knock off crap goes. in my book if they are the same as oem, regardless as to what they claim and dont require a bigger back plate, then i guess that's good enough.

The 2 from tutoit or what ever the sellers name is work great last as long or longer then my stock battery. The charger also gives a better charge to the batteries then I get through my phone I'm talking extra hours when I charge with it.

ryohei47 said:
yeah, either get the 2 1500s and the charger for 11 50
[ul]hxxp://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290444598681#ht_1730wt_1137[/url]
[/url]
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I got this and it's a good deal for the price.
The batteries aren't as good as oem. Probably last 75-80% as long.
The charger works well though and it's nice to have a couple extra batts laying around. I've only cycled them 4 or 5 times so I suppose the life could improve...time will tell.

rugedraw said:
I have a set of the 1500 mah batteries with the charger as was posted above, and I have no problem with them. I use my OEM battery most of the time, but sometimes it is handy to have some fully-charged back-ups. Honestly, I don't see much of a difference between what my OEM battery lasts and the knock-offs. For the price, you can't beat it.
Click to expand...
Click to collapse
I Have a number of Minor issues with mine. Must of gotten a bad set.
1) USB port on the charger does not output enough juice to charge the phone (Accually Locks it up until I unplug it)
2) Charger seems hit or miss on recharging the Stock Battery. I've left it plugged in all night and come back to ~20% charge when I pop it in a number of times
3) Random Screen cut off when charging the Replacements IN the phone.
So I only charge the Ghetto batteries in the charger provided.
That being said, I STILL think it's a great deal and more than happy with my purchase. I have 2 spare batteries for my phone (Or the wifes CDMA Hero) and a way to charge one w/o having to leave my phone behind (I don't have to babysit my phone for a charge, If someone walks out of the poker room or party with my charger and battery it's no big deal) The 2 China batts. are just emergency tanks, The Red one gets put back in as soon as I get home.

Best Purchase at twice the price.
Don't wait press the BUY NOW!!!!
Loved the first set so much that I purchased a second set 2 weeks later. I keep 1 set at work and 1 set at home. I always carrying a fully charged battery in plastic bag in my pocket. I love the EVO but hate the battery life. The first month I owned the EVO was hell for me having to carry a power charger and cable everywhere. I hated having to plug my phone in every time I found a power outlet worried if I didn't I may find myself without a phone when I needed it or having to fight everyone at the airports for power outlets. Now when I'm low on juice, I just switch batteries.... BUY NOW you'll never regret it....

I purchased 2 3500 batteries with new backs on e-bay for $22 and change. They work great I can go for over a day with fairly heavy usage.
Only minor problem was that with the phone thicker my silicone case doesn't fit as good. Extra weight no problem.

Yeah one thing I have learned from buying these types of batteries and charger is that they don't like to charge the OEM batteries but charge the cheapo ones just fine. I've noticed it on alot of things not just phone batteries.

buy it for the charger
i bought a 2000mAh that turned out to be a 900mAh so i would only buy it for the charger.

I wouldn't recommend the 2 x 1500 batteries plus charters the 1500's seem like a 1300 or a little less I would say try get the 1800 one from eBay they have a lot of auctions for them so all you gotta do is be patient and try to get for cheap that's what I'm tryin to do

Just ordered one of the 1800mah.. will see how this works out!
Sent from my PC36100 using XDA App

1700mAh or 1650mAh batteries - Has anyone tried them?

For those of us who don't want a fat new battery door on our phones, but want to improve on the stock battery, it seems there aren't many choices. Currently there is the overpriced and underhyped "1600"mAh from Seidio which I don't think I'm willing to pay for considering the reviews I've seen.
There's a 1650mAh from Mugen Power which I know very little about. I considered it, but for $45 and without any knowledge of its performance, this is a tough purchase for me. Anybody tried this one?
There's another one at HTC Express that's claiming 1700mAh, and I haven't really found a whole lot of reviews on it aside from a forum post or two in other places. Has anybody given this battery a shot? They're pretty cheap, (2 batteries and a wall charger for $35) so I think I might try it just for kicks.

I got the HTC Express set - two "1700mAH" batteries and a wall charger. Paid about $20 shipped on ebay from chichitec.
In short, the wall charger is crap. Half the time, the indicator light doesn't light, so I'm not sure if it's charging or not. It feels like cheap plastic.
Let me get straight to the point about the batteries - they're the same rating as the stock, the only thing 1700mAH about these is the writing on the labels. They're 1350mAH batteries like the one that came with it. They don't last any longer than the stock, maybe a bit less, but not enough to tell a difference.
That said, $20 for two backup batteries isn't too bad. I just don't know how long they will last - cheap batteries tend to die more quickly.

I got the same package for about $25 on amazon (via chickitek). Anyway, the charger works well for me and I haven't had the same issues as the previous poster. The batteries definitely are lasting as long if not longer than the stock. I'm rooted w/ Bamf 1.6.3 and undervolted a bit and I'm still at about 50-65% after about 12-16 hours. With that being said, I mainly am on Wifi so very little 4G.
I tried the Seidio battery that claims 1600/1700 and it basically wouldn't allow my GPS to work. Haven't had the same issues with these and on top of that, these are MUCH cheaper.
they probably won't last forever as the last poster mentioned, but they're doing great for now...just rotating the three batteries I now have.

Ditto the above posters. No regular-sized battery available will be larger in capacity than stock. These "1700mah" batteries are some of the better replacement batteries around, but don't think for a moment that they're better than stock. For better battery life without a pregnant phone, battery stat calibration and system management (governor, undervolting, data sync scheduling, etc.) are your only options.
Sent from my ThunderBolt using XDA App

tedkord said:
I got the HTC Express set - two "1700mAH" batteries and a wall charger. Paid about $20 shipped on ebay from chichitec.
In short, the wall charger is crap. Half the time, the indicator light doesn't light, so I'm not sure if it's charging or not. It feels like cheap plastic.
Let me get straight to the point about the batteries - they're the same rating as the stock, the only thing 1700mAH about these is the writing on the labels. They're 1350mAH batteries like the one that came with it. They don't last any longer than the stock, maybe a bit less, but not enough to tell a difference.
That said, $20 for two backup batteries isn't too bad. I just don't know how long they will last - cheap batteries tend to die more quickly.
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Click to collapse
Agreed 100%.
They batteries are no better than stock and the indicator lights on my charger started going in and out after 1 day of use. It does still work though.

i have the 1600mAh Seido one and theres practically no difference between that and the stock.
i still have the stock 1500mAh and 2 MyTouch 4G 1500mAh batteries as well.
pretty much i keep them all charged and when one craps out i switch to another.
[EDIT]: oh and yeah, you can use MyTouch 4G aka HTC Merge aka 42100 batteries in the Thunderbolt

Aftermarket batteries for i9250 review

I, like many of you, have been looking for ways to extend the battery life on the galaxy nexus. The particular route I have taken was to purchase some after market batteries off eBay. The intention was to purchase extra batteries and always have 1-2 fully charged ready to use when I'm out or when I'm planning to use the hotspot function extensively.
I hope by sharing my experience it helps at least some of you in choosing the right option. I will be updating this thread over the next week or so.
So here we go.
Capacity: 1900mAh
Brand: Unbranded
eBay item title: 2X 1900mAh Battery + Home Charger for Google Samsung Galaxy Nexus Prime I9250
Cost: $10 for 2 batteries and 1 charger
I have no relation to the seller, and to avoid any reasonable doubt, I'm not including any links to the item. You are free to buy or not from any sellers online.
The batteries came nicely packaged. The batteries fit perfectly into my i9250, standard cover, no modifications needed.
The charger is the slow type (i.e. overnight charger), and I had to leave the batteries in it for 5+ hours to reach full charge. This is a plus (to me) since slow charging is more gentle on batteries, but it does mean that you will probably want two chargers so the batteries can be charged in parallel if you are a heavy user.
Batteries didn't heat up noticeably during the charge.
After charging completed, I placed it in the phone and it showed 100% charge for 30+ minutes.
I have had it in the phone for four hours and with fairly heavy usage it's now down to 86%. For some reason my stock battery never seem to do this well, I would have been down to ~70% by now normally.
Update 1: I have used the batteries in a normal work day and here are the findings.
Aftermarket Battery 1: uptime 14 hours from 100% to 14%
Aftermarket Battery 2: uptime 10.5 hours from 100% to 16%
All in all I'm pretty happy with the results given the price and the fact that screen time was >5 hours in both cases, and that the OEM batteries performed similarly.
Update 2:
OEM battery: uptime 13.9 hours from 100% to 13%
So I guess that's it for now. These aftermarket batteries do seem to perform similarity to the OEM stock battery (sans NFC). I'd definitely recommend them, as personally I prefer carrying an extra battery over purchasing an extended one since it does add bulk and heft, and doesn't really double the run time unless you go for the 3500mAh category which is even bigger.
Feel free to ask me any questions, I will try my best to answer them here.

Great review, thanks.
This review was the decider for me whether or not I wait for the 2012 phones to come out, or get the galaxy nexus early - GN won hands down. I am about to order the same batteries from China; they're a lot cheaper than what my service provider has to offer!

They are indeed a good deal. Just one thing that I want to re-emphasize - NFC is not supported with these batteries.
I'm fine with this as Google Wallet is not available in Canada, but it is something you may want to consider.

I just got this charger and battery kit. USB charging on the charger is a nice addition. I'm testing these batteries now, but plan on only using them in an emergency, so it's a great deal.
Sent from my HP Touchpad running ICS

I'm interested in seeing reviews for this:
http://www.dealextreme.com/p/replacement-3-7v-2000mah-battery-for-samsung-nexus-i9250-127588?item=1
Anyone have this battery?

To the op: how many times did you cycle the batteries to get those numbers? I've cycled each of the two twice and I'm getting terrible life... 2h screen time and 5h total use. My oem battery gets at least double that
Sent from my HP Touchpad running ICS

EP2008,
After I received the batteries I just charged it using the supplied charger until the light turned blue. I didn't power cycle the battery or do anything special.
Let me re-run the tests again and see how they compare now.
5 hours total run time does seem very short.
I was running AOKP before and running LiquidSmooth + Franco kernel now, but I guess as long as we use the Samsung OEM battery as control it shouldn't matter.
Will report back in a few days.

ignign0kt, no I don't have this battery, but I'd be interested in a review as well.

I have purchased these same type of batteries for my vibrant and they were great. About same runtime as stock battery and I would carry 2 or 3 around with me at all times. They seemed to work a little better after a few full charge cycles. Only thing is they do not last as long as the OEM battery as far as the number of recharges. That being said I got around 9 months of daily charges out of them and by that time they start to get a little beat up and worn from hanging out in my pocket all that time any way. So I think its well worth it.... $10 every 6 months to a year I think is better than $80 for a 3500mAh battery to me. I never keep a phone more than 2 years so I might have $30 tied up in batteries over that time. And having 3 batteries to swap out I can easily make it over 24 hours away from an outlet.
I will be buying these soon for my GN. I just got it last friday so still breaking in the oem battery and will see how many "spares" I will need to buy for it in the next couple weeks.

So I cycled the batteries a few times and they are better, but still not close to three performance I get from the stock battery. I'm not to bothered by i though as these are really only for an emergency and would be rarely needed.
Sent from my Galaxy Nexus using Tapatalk 2

e
ignign0kt said:
I'm interested in seeing reviews for this:
Replacement 3.7V 2000mAh Battery for Samsung Nexus i9250
(link removed due to idiotic board software)
Anyone have this battery?
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Hmmmm.... VERY interesting. Thanks for the link. I just ordered two, one for me and one for my wife.

I bought the 3800mah battery from eBay for less than $12. Don't really notice any difference at the end of the day. Extended have 12% and stock Samsung had 13% at 9pm. Unplugg at 8am
Sent from my Galaxy Nexus using xda premium

[Q] Slim extended battery?

Hey everybody,
I've tried looking to see if there was a thread about these two batteries before posting but came up with no results. I'm running a stock SGSII (4.0.4) with an Otterbox Defender (downhill skateboarding/military protection). Phone usage includes emails, texting, FB and games.
I'm looking for an extended battery after going through TWO Samsung OEM batteries within 11 months. Both the batteries got the bulge of death. Sprint store techs have run multiple diagnostics and replaced parts but have no idea why this is happening and won't replace my phone.
I came across a 'Galilio' 2500mAh battery as well as a 'Sporting Persistence' 2520 mAh battery while searching around on eBay. I'm staying away from the Andida 2300mAh after reading several stories about how the contacts were misaligned and the battery wasn't really 2300mAh.
I don't want to go with a big, bulky case due to my requirements for protection. I've read about the Mugen 1950mAh batteries being pretty decent, but they're a bit more than I want to spend.
Thoughts? Ideas? Anyone tried either of these?
Thanks!

I got a 2100mah battery that was really just a fake. It does work fine as a spare and it was cheap but its worse life than stock. I suspect those 2500mah you found are fakes too. I tried the andida which had better life than stock but the contact misalignment caused random reboots after a while.
My suggestion is to just buy an external charger and multiple batteries. I just pop an extra battery in my pocket and go about my day then if I burn thru two batteries in one day I still have the third at home.

Anything on the mugen battery? I want to keep my protective Trident case on my phone instead of putting on the cheap back and 3200mah siedo battery where I can't protect my phone... and wish to have increased battery life and I keep having the problem where when I reboot I go from 69% to 19%..... I haven't checked for battery bulge yet
Sent from my Galaxy Nexus using xda premium

Beware of Lithium battery scams, ONLY BUY MUGEN!!!
xPIZZLEx said:
Hey everybody,
I've tried looking to see if there was a thread about these two batteries before posting but came up with no results. I'm running a stock SGSII (4.0.4) with an Otterbox Defender (downhill skateboarding/military protection). Phone usage includes emails, texting, FB and games.
I'm looking for an extended battery after going through TWO Samsung OEM batteries within 11 months. Both the batteries got the bulge of death. Sprint store techs have run multiple diagnostics and replaced parts but have no idea why this is happening and won't replace my phone.
I came across a 'Galilio' 2500mAh battery as well as a 'Sporting Persistence' 2520 mAh battery while searching around on eBay. I'm staying away from the Andida 2300mAh after reading several stories about how the contacts were misaligned and the battery wasn't really 2300mAh.
I don't want to go with a big, bulky case due to my requirements for protection. I've read about the Mugen 1950mAh batteries being pretty decent, but they're a bit more than I want to spend.
Thoughts? Ideas? Anyone tried either of these?
Thanks!
Click to expand...
Click to collapse
In my search for extended slim batteries I learned many lessons. I kept buying them from eBay until I got to the bottom of the conspiracy.
The batteries I purchased were for my Galaxy S2 and my Galaxy S3.
Lesson #1: If the battery price is too good to be true, it probably is. Case in point, I purchased several great deals on 'Samsung' brand OEM replacement batteries, all were under $10 bucks and all were counterfeits. All lasted only 2/3s of the time compared to the old and well used battery I was trying to replace. Some of these fakes didn't even have the chip inside that communicated with my phone, so as soon as you plugged in the wall charger the phone would immediately cut off, which is bad for your operating system. If the battery doesn't communicate with your phone properly, it's a fake. I went one step further and weighed the stock battery against the replacement battery and the replacement was far lighter, further proving it was a fake.
Lesson #2: High capacity fakes. I decided to try my luck at after market name brand and generic batteries that claimed longer battery life (a higher milliamp hours [mAh] or higher capacity). I ordered them one at a time, each time one came I would weigh it, it would ALWAYS be lighter than the stock battery (the only exception is Mugen). That was my first clue at fraud. Some of these brands communicated perfectly with my phone and charged OK but they were still lighter, telling me they had less lithium and less capacity. I tested each several times (because it takes a few charges to break in a new battery) but they were the same as the others, all would last only 2/3s the time of the worn out stock battery I was trying to replace. In all cases I would return the battery and try a different brand. In the end buying Mugen brand for $40-$45 a battery is the only way to get a quality replacement battery that lasts a long time but fits like the stock battery.
Mugen batteries are the only brand I can find that actually weigh more than stock OEM batteries. Mugen batteries last a long time, just like they claim. Now I only buy Mugen. Save up your money, it is worth the extra cash for the longer life. Would you want to carry replacement batteries around with you and swap them out twice a day or just use one Mugen? I charge my phone once at night and then use it all day long. Even on days with heavy use I still put it on the charger with a charge left.
I've tried most of the names you mentioned and many more. Maybe there are other illegitimate companies other than Mugen, but I wouldn't know, and I've looked. For anyone wanting to continue my search, the key is to research the name brand and see if they have a website that looks illegitimate. Do they sell batteries for other model phones and devices? Do they sell their own brand of battery charger? If not they are fly by night and are selling you a low capacity battery with a short life but have slapped a label on that claims a higher capacity. If you order one WEIGH IT and compare the weight to your OEM battery that came with the phone.

Batteries
joeiipuff said:
In my search for extended slim batteries I learned many lessons. I kept buying them from eBay until I got to the bottom of the conspiracy.
The batteries I purchased were for my Galaxy S2 and my Galaxy S3.
Lesson #1: If the battery price is too good to be true, it probably is. Case in point, I purchased several great deals on 'Samsung' brand OEM replacement batteries, all were under $10 bucks and all were counterfeits. All lasted only 2/3s of the time compared to the old and well used battery I was trying to replace. Some of these fakes didn't even have the chip inside that communicated with my phone, so as soon as you plugged in the wall charger the phone would immediately cut off, which is bad for your operating system. If the battery doesn't communicate with your phone properly, it's a fake. I went one step further and weighed the stock battery against the replacement battery and the replacement was far lighter, further proving it was a fake.
Lesson #2: High capacity fakes. I decided to try my luck at after market name brand and generic batteries that claimed longer battery life (a higher milliamp hours [mAh] or higher capacity). I ordered them one at a time, each time one came I would weigh it, it would ALWAYS be lighter than the stock battery (the only exception is Mugen). That was my first clue at fraud. Some of these brands communicated perfectly with my phone and charged OK but they were still lighter, telling me they had less lithium and less capacity. I tested each several times (because it takes a few charges to break in a new battery) but they were the same as the others, all would last only 2/3s the time of the worn out stock battery I was trying to replace. In all cases I would return the battery and try a different brand. In the end buying Mugen brand for $40-$45 a battery is the only way to get a quality replacement battery that lasts a long time but fits like the stock battery.
Mugen batteries are the only brand I can find that actually weigh more than stock OEM batteries. Mugen batteries last a long time, just like they claim. Now I only buy Mugen. Save up your money, it is worth the extra cash for the longer life. Would you want to carry replacement batteries around with you and swap them out twice a day or just use one Mugen? I charge my phone once at night and then use it all day long. Even on days with heavy use I still put it on the charger with a charge left.
I've tried most of the names you mentioned and many more. Maybe there are other illegitimate companies other than Mugen, but I wouldn't know, and I've looked. For anyone wanting to continue my search, the key is to research the name brand and see if they have a website that looks illegitimate. Do they sell batteries for other model phones and devices? Do they sell their own brand of battery charger? If not they are fly by night and are selling you a low capacity battery with a short life but have slapped a label on that claims a higher capacity. If you order one WEIGH IT and compare the weight to your OEM battery that came with the phone.
Click to expand...
Click to collapse
Have you ever tried the Anker brand? I have also read that those are legit. But I will like to hear that from someone that actually runs serious tests on them. Thank you

I've had the anker battery for over a week now. With my normal use I get about 20% more life than my stock non bloated battery
Sent from my SPH-D710 using Tapatalk 2

I have the andida and it seems to last about 2 hrs more then the stock one but ever once in awhile when it over heats the phone resets and you lose about 20% battery
Send from a mircowave

Chichitech is legit, 20$ and got a higher capacity, heavier battery for my HTC Evo 3d. I will buy from them again.
Edit not happy with my chi chi tech batteries for sgs2. Loved it for HTC evo v 4g but it seems to be decidedly higher quality than these ones for the sgs2