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Old May 15th, 2010, 10:06 PM   #1 (permalink)
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Default 2000mAh AND Seidio (?? mAh) battery for TP2/Hero/Evo

If I understand correctly, the Evo uses the same battery as the Hero, which uses the same battery as the Touch Pro 2. I have one of these for my Hero, and I figured some of you will be needing one soon >.>

It won't make your battery last longer, per se, but it doesn't drain nearly as fast under intense usage. Its kind of hard to explain, but basically you get more use out of the battery during a given time, while standby time stays mostly the same. I definitely recommend getting one though, its worth the whopping $10 you pay.

If anyone is interested, they can be found here (for now, anyways):
2000mah Spare Battery for HTC Touch Pro 2 T7373 Sprint - eBay (item 390187525611 end time May-24-10 22:30:18 PDT)

Did I mention its the same size as the stock battery?

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Old May 15th, 2010, 10:26 PM   #2 (permalink)
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I picked up one for my TP2 when these hit Ebay and you are 100% dead on with your description. I'm pretty convinced it's truly not 2000mAh, as performance compared to the OEM is quite similar under load. But, for $10, this is great backup battery option for Evo users.
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Old May 15th, 2010, 10:32 PM   #3 (permalink)
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I wonder how a battery with more juice can last the same time with something that has less. I would think that it does have a bigger capacity but doesn't hold it's charge that well. I would think of it as a bigger gas tank but it has a small hole at the bottom.
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Old May 15th, 2010, 10:48 PM   #4 (permalink)
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I guess its like having a bigger processor in your computer--you get more done when you use it, but its going to use up a ton of power whether its sitting or sprinting, if you will.

Anyway, If I don't use my phone much, the stock battery has more juice at the end of the day. If I use it a lot, stock is dead, Andida is at like 30% or something ridiculous.

Another thing to note is that the battery will drop rapidly around 20-30%, but in my experience it will hang at 7 or 8% for a LOOOONG time
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Old May 15th, 2010, 10:54 PM   #5 (permalink)
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from what i have heard the evo will be sporting a different battery because the 1500 was getting eaten alive so
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Old May 15th, 2010, 11:53 PM   #6 (permalink)
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Quote:
Originally Posted by drksilenc View Post
from what i have heard the evo will be sporting a different battery because the 1500 was getting eaten alive so
Haha, I figured 1500 wouldn't stand a chance, but that's sweet if they're already going to upgrade it... where did you hear about that? The main thread is way too big for me to keep up with anymore >.>
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Old May 16th, 2010, 12:04 AM   #7 (permalink)
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The main thing I'm worried about is the dimensions. Would a stock Hero battery work on an EVO, or this one?

No one seems to be able to confirm that.

I want to buy an additional battery before I get the EVO but I need to know with near absolute certainty that it will fit on the device first.
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Old May 16th, 2010, 12:37 AM   #8 (permalink)
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I am waiting to find out if Seidio will be releasing an extended-life battery for the Evo. I have one for my BB Bold and it's absolutely incredible.
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Old May 16th, 2010, 01:24 AM   #9 (permalink)
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Quote:
Originally Posted by Caloy View Post
I wonder how a battery with more juice can last the same time with something that has less. I would think that it does have a bigger capacity but doesn't hold it's charge that well. I would think of it as a bigger gas tank but it has a small hole at the bottom.
That "hole" would be voltage and they all run at 3.7v so if all the stats are TRUE a higher mAh battery will have longer life as it would have more watt hours.
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Old May 16th, 2010, 01:25 AM   #10 (permalink)
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Quote:
Originally Posted by Android 17 View Post
The main thing I'm worried about is the dimensions. Would a stock Hero battery work on an EVO, or this one?

No one seems to be able to confirm that.

I want to buy an additional battery before I get the EVO but I need to know with near absolute certainty that it will fit on the device first.
If I remember correctly, someone about 40+ pages back, called HTC to ask about the battery and the lady he talked to said the Hero battery definitely would not work. But then another poster said by looking at the FCC paperwork, he could tell that the HERO battery would work. So there goes your "near absolute certainty" requirement.

Maybe you could find one of the advocates in a Sprint store that has an EVO and ask them to pull the battery and compare the EVO battery with one from a Hero.

Good luck,
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Old May 16th, 2010, 01:26 AM   #11 (permalink)
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Confirmation would be nice. I will probably order a Seidio extended battery so I can have it when I get my phone.
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Old May 16th, 2010, 03:30 AM   #12 (permalink)
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Yeah so there's no way to tell for sure if that battery will fit the EVO?
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Old May 16th, 2010, 10:10 AM   #13 (permalink)
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Yeah so there's no way to tell for sure if that battery will fit the EVO?
Only way I could see would be asking a Sprint advocate.
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Old May 16th, 2010, 11:16 AM   #14 (permalink)
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Confirmation would be nice. I will probably order a Seidio extended battery so I can have it when I get my phone.
Seidio will have slim extended battery for EVO available at launch date (6/4).

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Old May 16th, 2010, 12:32 PM   #15 (permalink)
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Woot. After using the HTC Incredible with the stock battery I really want to pick up a bigger battery for the Evo. I have a feeling it's going to need it.
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Old May 16th, 2010, 12:37 PM   #16 (permalink)
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Quote:
Originally Posted by seidioseidio View Post
Seidio will have slim extended battery for EVO available at launch date (6/4).

Seidio
I will definitely be picking up one of those. Thanks! How are the cases coming along?
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Old May 17th, 2010, 09:11 AM   #17 (permalink)
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Quote:
Originally Posted by seidioseidio View Post
Seidio will have slim extended battery for EVO available at launch date (6/4).

Seidio
i'm not seeing a slim extended battery on your site, unless it's just not on there yet. all i see is 1750mAH and 3500mAH batteries that add 3-4mm to the device and comes with a replacement door due to the size increase from the batteries

1750 - Seidio - Your Single Source for Premium Smartphone Accessories
3500 - Seidio - Your Single Source for Premium Smartphone Accessories
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Old May 17th, 2010, 09:16 AM   #18 (permalink)
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The 1750's fit with the stock door for the Incredible.
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Old May 17th, 2010, 09:21 AM   #19 (permalink)
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The 1750's fit with the stock door for the Incredible.
yup, on their site it says "More capacity in the same form factor" here (for Incredible) Seidio - Your Single Source for Premium Smartphone Accessories

for either of the links that i posted for the Evo, though, it does not say that. it says "Adds only 3-4mm to your device". maybe they misprinted on the site. not sure. that's why i'm mentioning it, though. some clarification from Seidio would be nice.
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Old May 17th, 2010, 09:51 AM   #20 (permalink)
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I have been using this battery (ebay one) for awhile and it is exactly the same as the stock battery. Still a great backup though for 10$
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Old May 17th, 2010, 10:16 AM   #21 (permalink)
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Let's clear up a common mAh issue in the industry.

In all technical terms 2000mAh always will last longer then a 1500mAh. It's a unit of electrons used over time. The problem is that the industry is squewed on how to measure this. It's quite easy for a company to claim 2500mAH even, but have no more real world battery life then a 1300mAH. That's why you really should stick to OEM batteries OR very well known sources and not eBAy.

These e-bay/Chinese el-cheapo batteries won't give you more usage most of the time and are cheaply made so they could be a hazard. If you just want a back-up then they might be perfect for you. I'm thinking of getting one just for that, but for day-to day use I'll stick with OEM and if the OEM starts to show age after a year I'll replace it with an OEM
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Old May 17th, 2010, 10:40 AM   #22 (permalink)
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i can assure you 100% that the htc hero, pro2 batteries WILL WORK in the EVO.. same dimensions.. i received confirmation on this weeks ago...


Quote:
Originally Posted by Android 17 View Post
The main thing I'm worried about is the dimensions. Would a stock Hero battery work on an EVO, or this one?

No one seems to be able to confirm that.

I want to buy an additional battery before I get the EVO but I need to know with near absolute certainty that it will fit on the device first.
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Old May 17th, 2010, 10:44 AM   #23 (permalink)
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the battery will work 100% my hero battery works in it. the only difference is.. the evo battery is red.
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Old May 17th, 2010, 10:54 AM   #24 (permalink)
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Guys - instead of taking a risk with a knock-off battery from an unknown source, why not just get an HTC branded 2150 mAh battery like this one?

HTC Extended Battery for AT&T Tilt2 / HTC Touch Pro2 / Sprint Touch Pro2 / US Cellular HTC TouchPro2 - WMExperts Store
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Old May 17th, 2010, 10:55 AM   #25 (permalink)
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does anyone know where we can find an OEM extended battery that is the same size? are seidio batteries OEM? and yes, the Evo will fit the same battery as the HTC Hero, CDMA Variant of Pro2, and HTC Snap (via Sprint store).

edit: it appears that some seidio batteries are OEM. the ones that are state it so i guess all we can do is hope HTC makes a slim extended battery =/
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Old May 17th, 2010, 10:56 AM   #26 (permalink)
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Quote:
Originally Posted by Bek View Post
Guys - instead of taking a risk with a knock-off battery from an unknown source, why not just get an HTC branded 2150 mAh battery like this one?

HTC Extended Battery for AT&T Tilt2 / HTC Touch Pro2 / Sprint Touch Pro2 / US Cellular HTC TouchPro2 - WMExperts Store
I'd get it, but...

"Note: This battery requires a Extended Battery Door"
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Old May 17th, 2010, 10:57 AM   #27 (permalink)
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Quote:
Originally Posted by Bek View Post
Guys - instead of taking a risk with a knock-off battery from an unknown source, why not just get an HTC branded 2150 mAh battery like this one?

HTC Extended Battery for AT&T Tilt2 / HTC Touch Pro2 / Sprint Touch Pro2 / US Cellular HTC TouchPro2 - WMExperts Store
i'm looking for one that doesn't require a new battery door or adds extra bulk to the device, please.

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I'd get it, but...

"Note: This battery requires a Extended Battery Door"
+1
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Old May 17th, 2010, 11:03 AM   #28 (permalink)
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Quote:
Originally Posted by adseguy View Post
I'd get it, but...

"Note: This battery requires a Extended Battery Door"
*glances at coffee cup*

Alright, WHO PUT DECAF IN THE DAMN COFFEE MAKER THIS MORNING?!?!?!



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Old May 17th, 2010, 11:21 AM   #29 (permalink)
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this ebay battery sucks after like a month....it dies incredibly fast after reaching the 60% mark
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Old May 17th, 2010, 12:02 PM   #30 (permalink)
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Can anyone else recommend any good batteries for the EVO that are safe and do not extend the size or require a different battery door?

Thanks.

Edit: Would this work fine?

http://cgi.ebay.com/HTC-Hero-A6277-OEM-Back-Door-Cover-Battery-1500-maH-/330434381301?cmd=ViewItem&pt=PDA_Accessories&hash= item4cef6c85f5#ht_720wt_1137

It is supposedly the original battery and OEM. We don't need the back cover, but it still seems to be the cheapest battery I could find that claims to be genuine OEM.
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Old May 17th, 2010, 02:13 PM   #31 (permalink)
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Quote:
Originally Posted by Android 17 View Post
Can anyone else recommend any good batteries for the EVO that are safe and do not extend the size or require a different battery door?

Thanks.

Edit: Would this work fine?

http://cgi.ebay.com/HTC-Hero-A6277-OEM-Back-Door-Cover-Battery-1500-maH-/330434381301?cmd=ViewItem&pt=PDA_Accessories&hash= item4cef6c85f5#ht_720wt_1137

It is supposedly the original battery and OEM. We don't need the back cover, but it still seems to be the cheapest battery I could find that claims to be genuine OEM.
yes. this is the original HTC OEM battery that can be found elsewhere for about 30 bucks more. only thing is...i'm looking for more than 1500mAH, as this is what comes with the Evo. i want more juice, not a back up. i don't wanna carry a second battery around
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Old May 19th, 2010, 04:33 AM   #32 (permalink)
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anyone larger OEM battery for the legend?
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Old May 19th, 2010, 09:45 AM   #33 (permalink)
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Quote:
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anyone larger OEM battery for the legend?
Wrong place to ask buddy. lol
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Old May 19th, 2010, 10:47 AM   #34 (permalink)
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Quote:
Originally Posted by Android 17 View Post
Can anyone else recommend any good batteries for the EVO that are safe and do not extend the size or require a different battery door?

Thanks.
This is the one I ordered for when my Evo arrives! ii

The same battery I ordered but from this sites store is here:
http://store.phandroid.com/seidio-innocell-1750mah-extended-battery/8A37A6040.htm

Looks like the store here also carries the standard Evo battery as well. So you have lots of options:
http://store.phandroid.com/htc-standard-battery/8A37A6775.htm

I am unsure if it is worth an extra $15 for 250 more 'mAh' but what the heck! ii
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Old May 19th, 2010, 12:14 PM   #35 (permalink)
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Quote:
In all technical terms 2000mAh always will last longer then a 1500mAh. It's a unit of electrons used over time.
I like your post, but there's a very slight technical problem. It's number of electrons, not number of electrons per unit time. We have:

mA--One thousandth of a coulomb per second
h--hours, or 3600 seconds

So you have 1 C/s / 1000 * 3600 s = 3.6 coulombs. e being the charge on the electron (i.e. 1.602*10^-19 C) this tells us that 1 mAh has 3.6 C / e = 2.25*10^19 (twenty-two and a half billion billion) electrons.

So mAh is simply a raw measure of how many electrons we can pack into our batteries. So far as I understand (and this is a definite at least in the theoretical sense), there should be a direct relationship between mAh rating and run time, given the same conditions.
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Old May 19th, 2010, 01:29 PM   #36 (permalink)
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Quote:
Originally Posted by mrk View Post
It's number of electrons, not number of electrons per unit time. We have:

mA--One thousandth of a coulomb per second
h--hours, or 3600 seconds

So you have 1 C/s / 1000 * 3600 s = 3.6 coulombs. e being the charge on the electron (i.e. 1.602*10^-19 C) this tells us that 1 mAh has 3.6 C / e = 2.25*10^19 (twenty-two and a half billion billion) electrons.

So mAh is simply a raw measure of how many electrons we can pack into our batteries. So far as I understand (and this is a definite at least in the theoretical sense), there should be a direct relationship between mAh rating and run time, given the same conditions.
While I can't really dispute your claims, I feel there is a much easier way to explain mAh. Say you have a standard EVO battery (3.7v 1,500mAh), that means that that battery will last an hour if you draw 1,500mA (or 1.5A) at 3.7v. Of course the amperage draw is much less in standard use thus the phone lasting more than an hour. One example would be if you only drew 500mA from the battery it would last for 3 hours.
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Old May 19th, 2010, 01:55 PM   #37 (permalink)
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Quote:
While I can't really dispute your claims, I feel there is a much easier way to explain mAh. Say you have a standard EVO battery (3.7v 1,500mAh), that means that that battery will last an hour if you draw 1,500mA (or 1.5A) at 3.7v. Of course the amperage draw is much less in standard use thus the phone lasting more than an hour. One example would be if you only drew 500mA from the battery it would last for 3 hours.
Absolutely .
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Old May 19th, 2010, 02:06 PM   #38 (permalink)
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I'd love to see how a battery seller can really document that you're getting 250ma more other then saying so. A buyer certainly couldn't prove it's NOT providing the extra capacity. I think it makes more sense to buy 1 or 2 extra OEM batteries for $7 each than pay over $40 more for an "alleged" greater capacity.
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Old May 19th, 2010, 02:32 PM   #39 (permalink)
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I like your post, but there's a very slight technical problem. It's number of electrons, not number of electrons per unit time. We have:

mA--One thousandth of a coulomb per second
h--hours, or 3600 seconds

So you have 1 C/s / 1000 * 3600 s = 3.6 coulombs. e being the charge on the electron (i.e. 1.602*10^-19 C) this tells us that 1 mAh has 3.6 C / e = 2.25*10^19 (twenty-two and a half billion billion) electrons.

So mAh is simply a raw measure of how many electrons we can pack into our batteries. So far as I understand (and this is a definite at least in the theoretical sense), there should be a direct relationship between mAh rating and run time, given the same conditions.
Oy, yeah I shouldn't have said per (that's a division) lol.
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Old May 19th, 2010, 02:32 PM   #40 (permalink)
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A buyer certainly couldn't prove it's NOT providing the extra capacity.
He very well could. I'm not the best with circuits, but it'd be very easy to just drain the battery at a steady rate and see how long it takes for a full discharge.

(Not that most buyers would do this.)
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Old May 19th, 2010, 10:13 PM   #41 (permalink)
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After reading Engadget's reveiw, I'm really curious to see how the 2K mAh battery will compare in reallife. They said the 1500 one seemed pretty good.
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Old May 20th, 2010, 08:58 AM   #42 (permalink)
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While I can't really dispute your claims, I feel there is a much easier way to explain mAh. Say you have a standard EVO battery (3.7v 1,500mAh), that means that that battery will last an hour if you draw 1,500mA (or 1.5A) at 3.7v. Of course the amperage draw is much less in standard use thus the phone lasting more than an hour. One example would be if you only drew 500mA from the battery it would last for 3 hours.
Thus why many laptop batteries' capacities are listed in WHr
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Old May 20th, 2010, 09:25 AM   #43 (permalink)
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After reading Engadget's reveiw, I'm really curious to see how the 2K mAh battery will compare in reallife. They said the 1500 one seemed pretty good.
Funny thing is Engadget said the battery was pretty good and WSJ said it sucked...so which is it? I'm a bit confused with the conflicting views on battery life.
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Old May 20th, 2010, 09:33 AM   #44 (permalink)
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engagdet seems to be the only source saying the battery was decent. i'm not expecting good battery life, and plan on buying an extended battery.
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Old May 20th, 2010, 10:48 AM   #45 (permalink)
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I'm not putting a questionable battery in my Evo. I will most likely buy another battery with two important factors in mind.

1. Doesn't increase the size of the Evo (needing a different back).
2. Is an actual real world improvement over the original battery in terms of actual use time.

This is due to the fact mAh numbers are not regulated with a standard therefore you cannot trust the marketing hype.

If I'm unable to find that battery then I will order another of the original to take on business trips or for use in a jam.
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Old May 26th, 2010, 10:58 PM   #46 (permalink)
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i have the 3500 mah extended battery for my hero and i have to say that it works great.it definitly makes my phone thicker,i'd say about twice as thick or more. its not a problem because the hero is a small phone.now with the EVO being as big as it is i don't think i'd buy a 3500 mah battery.it will make the EVO look like a big black brick.i'd hate to ruin the look of such a good looking phone.instead i've ordered the Just Mobile Gum 4400 mah Portable Battery Charger.it fits in your pocket and your able to connect it to the phone while it's in its case.heres a link in case anyone is interested.just another option.

Just Mobile Gum Pro USB MP3 iPod GPS PDA External Battery - 4400mAh
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Old June 1st, 2010, 08:48 PM   #47 (permalink)
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Originally Posted by boriqua2000 View Post
i have the 3500 mah extended battery for my hero and i have to say that it works great.it definitly makes my phone thicker,i'd say about twice as thick or more. its not a problem because the hero is a small phone.now with the EVO being as big as it is i don't think i'd buy a 3500 mah battery.it will make the EVO look like a big black brick.i'd hate to ruin the look of such a good looking phone.instead i've ordered the Just Mobile Gum 4400 mah Portable Battery Charger.it fits in your pocket and your able to connect it to the phone while it's in its case.heres a link in case anyone is interested.just another option.

Just Mobile Gum Pro USB MP3 iPod GPS PDA External Battery - 4400mAh
how long does it take to recharge the evo battery?

thanks for the help!
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Old June 1st, 2010, 09:04 PM   #48 (permalink)
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No offense, but any same-sized non-OEM battery is crap. Even Seidio. In fact, they have a reputation for, ahem, "overstating" the power of their batteries. Avoid.

BatteryBoss Calls Out False Capacity Claims!

The larger batteries are OK as long as you are OK with a Frankenstein phone.
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Old June 1st, 2010, 09:23 PM   #49 (permalink)
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Quote:
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No offense, but any same-sized non-OEM battery is crap. Even Seidio. In fact, they have a reputation for, ahem, "overstating" the power of their batteries. Avoid.

BatteryBoss Calls Out False Capacity Claims!

The larger batteries are OK as long as you are OK with a Frankenstein phone.

good find thx. i'll just get a cheap oem battery.
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Old June 1st, 2010, 10:25 PM   #50 (permalink)
 
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Wait a minute, the Hero and the Evo use the same battery? Sweet! Guess I wont need to buy an extended battery afterall
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