yashsingh1/xdaforums huggingface dataset:
[EVO 4G Accessories] MSmith1:
The craziest thing is how amazing the battery life is when using the stock 1500 battery after being charged in the wall charger. Not only is the Evo cheating us out of our extended battery life but it is also cheating everyone else out there of their stock battery life.

I'm getting battery life that I have never gotten before on the stock battery after 2 charges in the external charger. It really does suck that the Evo has such a terrible charging mechanism. If it were better, I am sure A LOT of the battery life complaints would go away.
[EVO 4G Accessories] SouthernEvo:
This is why Im surprised HTC has not addressed this issue . There has been several comments referring to the battery life issue . You figure they might have already gone in by now and looked at the coding and figured "Hey this isnt working right maybe we should adjust this" . I was hoping this would be adjusted somehow through the foryo update but was never addressed . Hell the battery issue is the only real issue I have with the EVO . I love the phone but my god the battery is a joke at times . Hell today alone I was dropping at 6-7% an hour . This is with just two apps installed and the phone basically crippled down to nothing . Sorry but bleeding battery life like this is a joke to say the least and HTC not doing much except "Hey plug and unplug the charger 10 times then turn in a circle and pray your damn battery is 100%" . I have to agree with some on here with their statements of "I just wanna plug the damn thing in have it be 100% when I unplug it in the morning" . Im still thinking its hillarious the Motorola Droid X has an official extended battery from the manufacturer yet HTC still sits over there going "Ohhhhhh 1500 is as big as your phone will get from us" .
[EVO 4G Accessories] MSmith1:
It really is a joke. HTC should be ashamed of themselves.

As it stands now I am going to get around 5 hours of screen on time with over 22 hours unplugged time on the stock battery. This is all after being charged in a wall charger. I would normally get half of this from charging in the Evo.

C'mon HTC get it right for your own sake. You created an amazing phone and then gimped it with your dumb charging mechanism.
[EVO 4G Accessories] pongoface:
Yes the stock battery is amazing on the wall charger. Seidio is supercalifragulousexpealdouis on wall charger. Chinese are crap regardless of charger as they are all 2100mah at best regardless of sticker. Supposedly the new kernel sprint update coming soon to a download near you also addresses the charging issue.
[EVO 4G Accessories] SouthernEvo:
New Update coming soon ? Ok I know how Blizzard Entertainment likes the words "Soon" are we talking 12 months soon or 4 weeks soon ? LOL also where did you get this info from ?
[EVO 4G Accessories] Golf Nut:
Which wall charger are you using? I have the Seidio Multi-Function Battery Charger (model BD3-BCSI3HDDN-BK)... will this charger more fully charge my OEM battery (as well as my Amzer 1800 mAH battery) compared to charging with the battery in the phone?
[EVO 4G Accessories] MSmith1:
I am using some cheap piece of poop Chinese (no disrespect) wall charger that I bought from eBay and I am getting good results. I'd have to assume that a Seidio branded charger would net you the same results.
[EVO 4G Accessories] pongoface:
Donating fresh users are using 3.2 fresh which includes new kernel from htc/update which is getting rave reviews.
[EVO 4G Accessories] Golf Nut:
Sweet, I'm looking forward to giving this a try.
[EVO 4G Accessories] rdzlyz:
From 8:30am to now from 100% to 74% seems ok after 5 and a half hour
[EVO 4G Accessories] Systemfraud:
My 3500 seems to be going pretty quickly, maybe because of the fact that I don't have a battery charger and can't fully charge it. I can't even tell if it's dying faster than my stock battery. If there's no answer to this then I'll probably just use it as a spare.
[EVO 4G Accessories] pongoface:
System I have 2 Chinese 3000 and a 3500bah bats. They are better then stock but only around 2200mah if you are lucky. They do get better after 5 cycles. Drain them down til phone shuts off and charge. Cheap wall charger works best. I broke down and got a 3500 seidio for 50 bucks. Charged it on the wall charger and this battery is amazing. If u have the money buy it.
[EVO 4G Accessories] Systemfraud:
I was gonna edit my message and say it's actually getting better. I wanna buy a wall charger off of eBay. Any particular way I should search for it?

Edit: how much mah does the seidio give?
[EVO 4G Accessories] pongoface:
Type in evo wall charger. As for the seidio. Batteryboss.org says 2800mah. But I think it is close to 3500mah. I have been beating on my evo since yesterday and only at 54% right now. Tons of surfing xda, flashing roms and kernels. I have my 3500 Chinese waiting so I can cycle this seidio. I just hope it lasts while my seidio is on the wall charger.
[EVO 4G Accessories] MSmith1:
Interesting. I've been cycling the 1500 and the 3500. Maybe I should look into a cheap extended battery option.

Have you had any luck with anything specific.
[EVO 4G Accessories] pongoface:
Msmith1,

I received my seidio 3500 and stuck it in the cheap eBay wall charger that came with my 2 Chinese 3000mah's. Waited for it to charge completely and put it in the evo. This was at 4am est Monday. Since then I have only plugged the computer long enough to download freshs Rom to SD card. I am at 46% right now. Have not touched any battery stats and am not going to. As for the Chinese batteries mind you I have 4. They all seem to come from same mfg. No matter what I do they have weird similarities. Like they all pause at 86% seems like forever. They all drop from about 47% to 35% like a rock and then again from 24% to 14% like a rock then slow down for the final countdown. It is like the Chinese batteries are missing cells or something. No other way to describe it. Best bet buy a 3500mah Seidio charge it on the wall and use a stock battery or Chinese 3500mah while it is charging. When charged switch and put the other battery on the wall charger. Batteries definitely respond better on wall charger. Even stock battery has greatly improved with the wall charger.
[EVO 4G Accessories] Systemfraud:
Sounds like I'll definitely be getting a wall charger then. Thanks everyone for all of your input on this subject.
[EVO 4G Accessories] MSmith1:
Yeah, I've been cycling my 1500 and 3500 in and out of the wall charger. Might look into these cheap 3000s as a backup though.

Which seller did you buy from?

Also, I haven't and won't touch my battery stats anymore either. I really haven't found that to be of any use.
[EVO 4G Accessories] pongoface:
Shoppinghome99 was the seller.fast shipper for me anyways.
[EVO 4G Accessories] Systemfraud:
I'm still not quite familiar with battery terms and whatnit, so I must ask..what is they cycling you guys are taking about?
[EVO 4G Accessories] chandlerw88:
Is conditioning your battery. Basically its how you go about charging your battery. The first couple of times let our drain completely before recharging
[EVO 4G Accessories] pongoface:
Yes I have been told by radio control experts that even though lit ion have no memory it helps wake up the cells so to speak. I even do this with all my lit ion cordless tools and have had success.
[EVO 4G Accessories] Systemfraud:
Thanks for all of your help bro. This will most likely be ny final question, but the first few times you let it die, got that. But do I have to do all the tedious stuff like the first time? Charge with the phone off and do the top off trick 10-15*?
[EVO 4G Accessories] MSmith1:
Charge all of your batteries in the wall charger. Use until dead. Swap. Charge. Repeat.
[EVO 4G Accessories] pongoface:
Yup, exactly. Only need to go dead like first 5 or 6 times after that pop them in whenever. I know it is a pain in the butt. Until HTC fixes the usb charging issue this is what I do. I only plug in my usb when needed or using navigation or downloading a Rom from computer to phone. Batteries last longer this way.
[EVO 4G Accessories] ElAguila:
I will be picking up my evo next month so I have been following this thread as much as I can. I was looking at the boxwave battery as I have been satisfied with their other products. One thing I don't understand though is that boxwave says their 2700mah batter has 2x more capacity than the the standard battery. If it has twice the capacity shouldn't it be more like 3000mah?
[EVO 4G Accessories] hannsz:
Say, like staying at 82% for 8 hours while I'm sleeping? Usually I'd have at least a 5% drain overnight.

I've been running this 3000mAh battery until it dies....just over 16 hours and at 65% remaining. If I notice something similar with the usage later on I'll make sure to update.
[EVO 4G Accessories] SouthernEvo:
They say twice the capacity due to the fact that most of the time , when a battery is rated at say 1500mah it true real world use it turns out to float somewhere around 1350-1400 . The stock 1500 battery for the HTC EVO has been tested and usually comes out some where in the 1400-1465 or close to it as they show on www.batteryboss.org . Most aftermarket batteries don't reach their claimed mAh rating . Even the Seidio according to batteryboss doesnt reach 3500 mAh . Some will dispute the claims others will agree . Its also been claimed that some of the aftermarket batteries from ebay rated at 3000mAh are actually more along the lines of 2100 mAh . In the end it falls to you as what you want to choose and what you want to believe in . Personally I think most of the battery issues we see will be cleared up if and when HTC addresses the charging issue with the HTC EVO . Supposedly there is an update that will be coming out in the near future that is going to address this issue or extend battery life .
[EVO 4G Accessories] VW91N3:
It's unkillable myth from the days of the NiCad battery. Read up:

http://www.batteryuniversity.com/parttwo-36.htm
[EVO 4G Accessories] Systemfraud:
I just wish they'd fix the problem. I understand a smart phone doesn't have the best of battery life, but damn.
[EVO 4G Accessories] MSmith1:
You and me both. Though I get superb battery life with a wall charger, I shouldnt have to go through all that for good battery life.
[EVO 4G Accessories] SouthernEvo:
That and the fact that you are putting excess strain on the battery door and the retaining clips . Im not saying the EVO is a fragile snowflake by any stretch of the imagination but its still just plastic holding plastic togather . It doesnt take a brilliant mind to know that sooner or later plastic fails with repeated flexing (installing and removing the battery door) . Same goes for the usb plug in my honest opinion . With as many complaints I hear about usb plug failures and HTC's idea of plugging and unplugging . Im sorry but their ideas of correcting an issue by aggrivating another one is like putting a bandaid on a gunshot wound . *Waits patiently for wonder rom thats in the pipelines*
[EVO 4G Accessories] pongoface:
Good thing I have 5 battery doors lol Hope the clips on the phone itself holds up
[EVO 4G Accessories] MSmith1:
Oh I completely agree. All of the so called "fixes" put strain on another part of the phone. It's really terrible. Unfortunately, if you want good battery life and your money's worth on the extended battery, there is no other way than the wall charger.

I've never done that dumb USB top off trick. I just bought the wall charger.
[EVO 4G Accessories] mntbkr:
Makes me seriously consider doing the palm pre charger mod so I don't have to plug the phone every time. It would relive some stress on the USB port, and I know I can do a cleaner install than the one on the tutorial.

Sent from my PC36100
[EVO 4G Accessories] streets1313:
I was thinking of this as well or at least another induction charging system bit correct me if I am wrong, but don't they use magnets in those systems what would harm some of the evos internal electronics?
[EVO 4G Accessories] Systemfraud:
Well, I just purchased my wall charger and I'm more than excited to have it arrive already! I know the battery will never be its true mAh, but at least it'll be way higher than charging it in the phone. Will look up more info on the palm pre mod you guys were talking about. Also happy to hear good feedback for the wall charger, too.
[EVO 4G Accessories] Systemfraud:
When I get my wall charger in the mail how should I go about charging my batteries? Let each one die each time I wanna switch batteries then fully charge the one that is dead?
[EVO 4G Accessories] RVCA:
Brightness to a 100 percent. Turned up the syncing for FB(every 30 mins), Touituer (every 15 mins), News (every hour)..Weather widgets (everyhour)

Stock 2.2 ROM ...Rooted via 3.2 unrevoked. Using Launcher Pro with several widgets running in the background

not bad for a hong kong 10 dollar 3000mah battery. I went back to the stock battery afterwards just because this one is just overkill. I would use it if I know Im going to be out of the house for more than 20 hours at a time. For now I'm fine with the stock evo battery that gets me 12-14 hours of battery life.
[EVO 4G Accessories] VW91N3:
You should read this entire site (there's not that much), but start here:

http://www.batteryuniversity.com/parttwo.htm

Everything you've gotten used to with old battery technology is pretty much out the window.
[EVO 4G Accessories] ezkialrage:
maybe you guys can clear something up for me.

Im going to look into getting the 3500 seidio battery. Someone with the battery could you tell me whether the battery is actually part of the back case? or is it just a fatter version of the battery we have, and you slip a custom seidio case over it?. also, since a wall charger is best recommended for charging it to full 100, what is the best one to get?

im curious especially if the seidio battery is actually part of the case. i would think that there are few chargers that could fit this?

danke
[EVO 4G Accessories] VW91N3:
The battery is separate from the back cover. It's twice as thick as stock, so it needs a humpback to fit over it. So far, there appears to be no made-for cases to shroud the fatter back and phone. Some have bastardized.... er, modified various soft cases to fit.
[EVO 4G Accessories] goodelyfe:
*points to the 800lb invisible gorilla in the room

http://xdaforums.com/showthread.php?t=736273
[EVO 4G Accessories] turpis:
Oh man that's bad news, hope it gets better after a couple of charges. I have seen other posts on cheap replacement batteries with good results. What brand of battery was it. Can we get a pic of the battery?
[EVO 4G Accessories] johnnychimpo:
I contacted the ebay seller and he says the battery is near 2700mah and need week of use to gain full capacity. Here are some more pics.
[EVO 4G Accessories] SharkUW:
How do you determine the mah currently on a battery? Is it a calculation based on the voltage?
[EVO 4G Accessories] johnnychimpo:
I have no idea how its calculated but Ive got a R/ C charger that discharges/ cycles/ and charges batteries of all types and sizes. It displays charging current along with mah put back into the cell/s.

Im going to give this battery a good week of use until i cycle it again and see how much capacity it can take after a discharge.
[EVO 4G Accessories] dmc971989:
you know... if someone wanted they could pick up this combo on egay (but really just buy it for the extended back case)

then buy an OEM extended 2150mah TP2 batt for $35-$40ish and use that in place of the ebay battery

that battery is known to be good

i figure if youve got less than $45 in the entire setup its far cheaper and the Sedeio 3500 and its %100 an accurate rating on the battery

p.s. part number for the HTC OEM TP2 2150mah extended battery is:

Model # 35H00124-08M
[EVO 4G Accessories] fiveohhh:
Ah is a unit of electrical energy. It tells you how much current you can get from the battery. it means it can supply 1 amp for 1 hour. So, in the ideal case, if your phone was drawing 1 amp and you had a 1400mAh(1.4Ah) Your phone would last for 1.4 hours.
[EVO 4G Accessories] limemedic:
Wow thats a big battery for it being "near 2700mah" how much more does your Evo weigh now with that?
[EVO 4G Accessories] evohog:
I tried the tp2 and it worked but it wouldn't charge in the phone. The other problem is the led flashes red green constantly. It doesn't register it has a triangle with an exclamation point instead of the battery status.
[EVO 4G Accessories] johnnychimpo:
Running a slow 25mAh discharge cycle on the battery after being fully charged to see the capacity of the battery.

It really isnt the much bigger than the original. Its actually more comfortable to hold and talk on plus the bigger back protects the camera lens and helps support it better on the kickstand.
[EVO 4G Accessories] johnnychimpo:
Well today a slow discharge of the battery to 3v at 25mah load yielded 2015mah. No where close to 2700.
[EVO 4G Accessories] skittlesV1:
How did you test this?
[EVO 4G Accessories] johnnychimpo:
I have a rc charger for my rc helicopters/airplanes. It charges and displays charging data/ discharge. I use this charger mainly for monitoring charging Li-po(lithium polymer) batteries. The data is crucial to make sure you don't over discharge your batteries.

Sent from my PC36100
[EVO 4G Accessories] gtkansan:
Well I got mine, listed as the 3000 mah model. Full charge first time, then continuous run of straight file downloading over a good 3g connection, using wireless tether to my laptop. It is still freaking running!10 solid hours of WiFi tether and showing at 35% remaining. This is with it still syncing fb, exchange, etc. Normally the stock battery dies in about 3.5 hours. Amazing.

Sent from my EVO
[EVO 4G Accessories] phillycreamboy:
How does the new backcover feel? I broke my back cover and was thinking of switching to this instead.
[EVO 4G Accessories] cabbieBot:
took the plunge on the 3000ma model, sadly it will make my case unusable, hope to see some links to compatible ones. i also recently bought an 1800ma battery for around the same price but it also came with an external battery charger. for 30 bucks, getting 1800ma and 3000ma batteries + external charger is pretty good.
[EVO 4G Accessories] Travyevo:
Finally, some good information about battery life! I ordered that same one, I'm hoping that I get mine today.

Just curious how much time I'd get with all of the widgets on and normal use. Can't wait to find out! I'd love to not have to turn widgets on and off.
[EVO 4G Accessories] houseofbugs:
I got mine yesterday and it's going like a champ. I got about 14 hours of use out of my EVO with this battery. Probably going to order another with a charger for a backup.

EDIT: Also the back feels like the stock EVO back. It holds on tight and feels VERY OEM. Highly recommended!

~Tim
[EVO 4G Accessories] jobryan26:
I received my 3000mAh yesterday. I haven't gotten the chance to actually charge the battery all the way up to test it out yet. I have to say I really like that back cover also. I love the feel so much better! If the battery doesn't hold up I will buy the Seidio 3500mAh and see if it fits under this cover since I don't like Seidio's much.
[EVO 4G Accessories] Travyevo:
Can someone try turning on all widgets for an entire day and see if it lasts? I'd like to see how well this battery does once you have everything turned on.

BTW, how much percentage did you have left after 14 hours? Was it heavy usage? I can get over 16 pretty easily with my stock battery so I'd like to hear a comparison.
[EVO 4G Accessories] Crackbone:
It doesn't quite fit.

You can make it fit, but there's a bit of a cap. I have both. :P
[EVO 4G Accessories] Travyevo:
So do tell, which lasts longer?
[EVO 4G Accessories] Crackbone:
The Seidio lasts longer. It's a real beast of a battery, but you are paying for it. I was able to get one from Amazon for $54, and it's worth the price.

The Ebay 2600-3000 Mah batteries are all the same as far as I can tell. As someone mentioned earlier, it's definitely longer than the stock battery, I'd guess 30% more capacity.

The seidio is closer to 80% as far as I can tell. It goes easily 18-24 hours with HEAVY usage. The hardest thing about the Seidio is getting the phone to calibrate with accurate numbers to the actual percentage of juice left in the phone.

The ebay battery WILL fit under the Seidio cover, so I've been using it as a spare. Just in case.
[EVO 4G Accessories] xdirtx:
Got mine, too.

It feels awesome in hand.

I think the battery life is on par with the OEM battery.

But hey, it was thirteen dollars for a spare battery that makes my phone slightly more comfortable.

Definitely does not add any battery time, though.
[EVO 4G Accessories] jobryan26:
So the Seidio battery is bigger than the ebay battery? How big of a gap?
[EVO 4G Accessories] 2kmy477:
I received my 2600mAh ebay battery last week,I did a test on it last weekend,on my stock battery,I stream Slacker Radio,it lasted 4 hours and 6 minutes,the ebay battery lasted 7 hours 25 minutes,it was amazing,I love this ebay battery,I went back and ordered 2 more(3000mAh this time)from the same seller in HK.
[EVO 4G Accessories] Crackbone:
I don't have both on me, but when I get home tonight, i'll measure. It's not much.

However, it is enough that it ebay cover doesn't fit quite right. It's enough off so it's not completely flush with the phone. I'll give you more accurate numbers tonight.
[EVO 4G Accessories] soundwavedj:
Question for ya. I had a Guy at best buy tell me that if the phone is not running with a stock battery it will screw up the phone somehow. True or false
[EVO 4G Accessories] Travyevo:
EXCELLENT information. Thank you so much.
[EVO 4G Accessories] johnnychimpo:
I seriously doubt it. False.
[EVO 4G Accessories] Crackbone:
I take this back. :(

After the Seidio case got a little play in it from use, it's not working with the Ebay batteries any longer. Sucks too :( Didnt want to have to deal with two backs, oh well.
[EVO 4G Accessories] :
definitely looks better than seidio's offering.
[EVO 4G Accessories] austontatious:
Do you think that back plate would work with seidio's big battery? I don't know the dimensions right off.
[EVO 4G Accessories] jobryan26:
It was previously stated that Seidio's battery IS thicker and creates a gap if trying to use with the ebay battery cover mentioned on this thread with Seidio's battery.
[EVO 4G Accessories] KyleK29:
Just some extra info - http://batteryboss.org/ tested the Seido and it came in at 2800mAh.

This falls in line with what was previously mentioned (these Ebay batteries being 2100mAh) and the estimated time of use between the Seido and Ebay batteries.

Someone should send one in to him for testing, I'm sure he sends them back (if you pay, only cost a few stamps).

*EDIT*

Looks like Mugen put one out: http://cgi.ebay.com/3200mAh-MUGEN-E...ccessories&hash=item4151925ce2#ht_4642wt_1137

- 3200mAh, but "Procedures for all batteries idendical, fair and square, so stop whining Mugen." Lol @ Batteryboss.
[EVO 4G Accessories] skydeaner:
I loaded my 3000mah ebay special with 2900mah after 7 full cycles on an RC charger. I figure that is close enough it is worth the money and will probably get a little better.

Maybe the guy that was getting 2100 got a bad bat.
[EVO 4G Accessories] v_lestat:
not to be a party pooper here but do you seriously trust a $15 chinese battery in your EVO......????

gotta be crazy to risk it.

it's also lithium ion its not lithium polymer
[EVO 4G Accessories] BrianDigital:
all the batterries come from china, these batteries are most likely products that did not pass a quality check from a say deido, mugen, etc

so
[EVO 4G Accessories] Stephanie95:
2600mah HK Battery

Mine works great-got a good one I guess it lasts about 70% longer than the standard pack- When would anyone need one? :eek:-> Travel or at work when you can't plug it in...:rolleyes: