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I just received this in the mail yesterday, and I think that it's worth $30. The battery definitely lasts longer. I'm only on my first day of use, but have had the phone on with normal use and bluetooth on all day (9+ hours so far) and I'm at 60%. Had I remembered to turn off bluetooth this morning, it would have been closer to 70% left since the bt accounted for 21% of total battery usage.
Also worth noting... The wall charger seems to properly charge the battery. I drained my original 1500mah EVO battery down to 7% and then placed it in the charger. It charged for approximately 6 hours. Normally, when charging it from empty in the phone, it charged much faster. I'm not a battery expert, and I also could be mistaken, but I get the impression (from reading threads and using the phone and previously owning an iphone) that the HTC software is not properly charging the battery and that is contributing to the miserable battery life right out of the box. Obviously changing setting in the phone software help quite a bit, but I feel like this charger and battery setup help significantly. I'm going to throw the fully charged original battery in tomorrow, and see what kind of performance I get out of it. I'm betting it will be much improved.
Apparently I can't post links on my thread because I am a new user. Just search ebay for chichitec and check out there store. I'm not affiliated with these people in any way. I just happen to be pleased with their product and figured I should share this for any other users that are frustrated with battery life on their EVO.
I just got it (though from another seller).
Figured it was worth the $20 to see if a different battery can help my situation.
I'm at 24 hours up time 3 hours of awake time and still have 26% left. Plus I've got two fully charged spares. Battery problem solved.
Did you actually get red batteries?
They're not exactly the same with the HTC logo, but they are red.
What are the eBay item numbers you guys used?
This is from the same seller for one battery and the charger. He basically charges $10 for each item.
http://cgi.ebay.com/HTC-EVO-4G-BATT...ewItem&pt=PDA_Accessories&hash=item4aa320f7db
And I am convinced that the poor EVO battery life (stock) has to do with using the phone to charge the battery. I charged the original HTC battery with the included charger and I am at exactly 40% battery remaining with 24:37 up time and 3:05 awake time.
So much better than before.
That's why people are using the method from the forum where they charge their battery 10 times to "condition" it. That definitely helped me, but using this external charger is even better.
ckombo said:
And I am convinced that the poor EVO battery life (stock) has to do with using the phone to charge the battery. I charged the original HTC battery with the included charger and I am at exactly 40% battery remaining with 24:37 up time and 3:05 awake time.
So much better than before.
That's why people are using the method from the forum where they charge their battery 10 times to "condition" it. That definitely helped me, but using this external charger is even better.
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Click to collapse
Are all the people who brag about 24-31 hours battery time sitting with like 3 hours of actual up time for that period? if so no wonder i dont last any where near that i am usually done at 12 hours with about 6 hours up time.
I consider 3 hours over 24 hours to be very light usage just wondering if that is the reason why no matter what i do i ant get any where close to some of these peoples times.
I wasn't trying to brag. I was just happy to finally get what I consider to be a great improvement over my original battery life. I wish I had more time to use my phone that many hours in the day. Seeing that I don't, this setup works good for me. I know this isn't amazing battery life given my light usage, but so much better than stock out of the box. I haven't rooted yet, and I'm not very conservative with settings that drain the battery.
And to answer your question, yes, that's why your times are shorter, but it seems like you should be getting more. If I have a day where I get more up time, I'll post the numbers.
So I just got this battery hm around Wednesday or Thursday, and I have let it die down to around 10% or less and recharged it overnight several times and I still only see a slight difference in battery life. I am (I would say) a moderate user and I know some people say they get around 2 days on heavy use so I wonder what I'm doing wrong..? I ran the SU command to delete the battery.bin file to wipe the stats while it was fully charged, then let it run the whole day again only getting around 12 hrs (probably would have been shorter, but I have juicedefender running, and I was at work for 5 1/2 hrs of those 12) and then I stuck it on the charger at about 7:45 and then around 12 it was fully charged and I of course turned it off, then back on and it said it was around 80% so I let it charged to full, reset it again then when I turned it back on it said it was full. I took it off the charger and within minutes it dropped 1% every minute or 2 and now around 15 minutes later it's at 86% and I'm not even doing anything, just sitting here with the screen on and Skype is running. I've only drained it/fully charged it a few times maybe 3 or 4 should I just keep doing that or did I just get a crappy battery? It's better life than the stock, so I can't help but think that it's not crappy just not fully calibrated or "worn in" yet. Any help would be greatly appreciated!
I too have a cheapo extended battery from eBay, for the first week I hated it, but finally I actually just let the thing completely die to wear the phone shut down and wouldn't turn back on, then I recharged the battery completely in a standalone charger(also ebay), then put it back in the phone and used normally, charging and discharging and now I can't even dream of going back to the OEM battery, my battery life has much more than doubled. I use my phone like most here with CM7 up to date on nightlys and I'm happy as can be. I also like the ext back on the cheapos much better than the seidio flavor.
So you use the wall charger from eBay to charge it? I don't want to take my battery out to charge it though every night, let alone turn it off because I use it as an alarm clock :X. I've read a whole bunch of different ways of how to charge it in your phone and most people even one of the legitimate companies (Seido) who sells it, says that if you let it go an hr or 2 after the light turns green its good to go, but I don't believe it charges after the light turns green hence why the charging icon on the battery goes away. people may "think" it does but I honestly don't think it does and if anybody can prove otherwise I might have to buy the external charger :/
Yes get an external charger, Preferably 2 batteries and 1 external charger.
I just ordered a wall charger for like $15 I hope this works. I'll just charge my extended battery at night and use my other battery when the extended is charging
Sent from my Evo!
I used the external charger just once to "calibrate" the battery it seemed? Since then I've not taken the battery from the phone and just charged it with the phone charger(plugging it in) and I have noticed a huge change in run time.
How do you charge it though now that its calibrated? Do you just leave it on the charger for a few hrs after it hits green or do you have to turn the phone off and back on then stick it on the charger
Sent from my Evo!
Well my cheap battery has not blown up with sbc kernels
Yeah, its been about a week and my battery still can't even hold a charge, even if it isn't fully charging. It dies quicker than my stock battery. I told the guy I bought it from, and he said he'd send me a new one so I'm back to the stock battery for now until I get this one next week :/
Hey guys, i know it's a tiny bit off topic, but what about a battery pack??
http://www.amazon.com/XtremeMac-IPU-ICP-11-InCharge-Portable-US/dp/B003FVRYBE/ref=sr_1_1?ie=UTF8&s=electronics&qid=1294354173&sr=8-1
i have two of those things and they work perfectly. plus, i don't have to kill the phone, open her up and swap batteries. additionally, it'll charge two devices at a time. bonus!
Hmm see that's what I'm trying to get rid of lol having to plug it in all the time. Plus I actually like the bigger back, I personally don't like the thin size of the evo I feel like I could drop it at any time.
Sent from my Evo!
How are you guys getting so many hours? I only get like 8 Hours on my heavy use and i bought a 3500mah extended battery wtf? I'm also using the net Netarchy sbc 3.2 more havs and mym rom with setcpu running profiles. What am I doing wrong? I even have juice defender running aswell.
I had my 3500 extended battery and at first it wasnt too good. But after switching to an external charger for all charges and completely letting the battery die out im getting a whole days worth of heavy use with no worries.
No rooting or any battery controls.
SilverStone641 said:
Hey guys, i know it's a tiny bit off topic, but what about a battery pack??
http://www.amazon.com/XtremeMac-IPU...1?ie=UTF8&s=electronics&qid=1294354173&sr=8-1
i have two of those things and they work perfectly. plus, i don't have to kill the phone, open her up and swap batteries. additionally, it'll charge two devices at a time. bonus!
Click to expand...
Click to collapse
I think if I got one it would be the 4400mah gum charger
Sent from my evo 4g
I just recently bought a 3500mAh extended battery from amazon. (http://www.amazon.com/gp/product/B0042TY68C/ref=ox_sc_act_title_1?ie=UTF8&m=A1N1UQZS4G6GV9). I just got done fully charging it, i let it charge fully over night, just unplugged it and boom 10 minutes unplugged with me not even touching it just letting it sit on my desk we are down to 95%. I know you are suppost to cycle these batteries and stuff before u can actually see the fully life of it and i plan to do that. My question is i downloaded battery monitor widget and on the main screen its calling the battery a techno-Li-ion 1425/1500mAh battery. I know this isnt right ive cleared battery stats probably 10 times total now, through recovery and through the battery monitor widget app. Im hopping i didnt get ripped off and it just takes a few discharges for the phone to recognize the new battery? Any help would be appreciated.
I plan on letting the battery get to 15-20% and then charge it all the way up again and do these a few times, as well as clear the battery stats. This is what i read to do with new batteries? Please correct me if im wrong..
When using an extended battery you are not going to get a full charge unless you condition it or you could use a SBC kernel.
how much will u get out of it then without the sbc?
I bought this exact same battery. I used it at the time on my Evo unrooted. The first one that came to me (2 weeks late) wouldn't even power up. The second one they sent me I ran for about 3 weeks and put the stock battery back in. I was about to get 9 to 12 hours on my stock battery and with this extended I was getting the same. 2 weeks into using it the battery life got crappier everyday. To me it wasn't worth the added bulk for the same or less life. Since then I now run CM7 on the Tiamat sbc kernel with my stock battery that is almost a year old and get close to 18-20 hours out of an almost year old stock battery.
I use the SBC kernel, battery monitor widget, and the 3500mah battery. The thing lasts for days. Literally. When the green light comes on at "100%", that means NOTHING.
I ran it stone cold dead yesterday on purpose. Plugged it in at 10:00pm using my 800mah AC charger.
10:00pm: Plugged in, begins charging at ~700mah (max for my charger)
12:45am: Phone indicates 100% @ 4018mV but keeps charging at 700mah
2:00am: Charge rate ramping down @ 4197Mv
2:45am: Charge rate 100mah
3:00am: Charge rate 50mah
4:00am: Charge rate 15mah
4:30am: Charge rate 10mah which it remains at when fully charged (4198mV)
Stone cold dead to green light was only about 3 hours. BUT, stone cold dead to actually fully charged was really double that.
Obviously if the battery isn't dea, it will take conciderably less time. If you charge it with a PC, limiting the total current to 500mah, it will take conciderably longer.
So battery monitor widget calling it a 1500mAh battery doesn't mean anything? Right?
Sent from my PC36100 using XDA App
beanx said:
I just recently bought a 3500mAh extended battery from amazon. (http://www.amazon.com/gp/product/B0042TY68C/ref=ox_sc_act_title_1?ie=UTF8&m=A1N1UQZS4G6GV9). I just got done fully charging it, i let it charge fully over night, just unplugged it and boom 10 minutes unplugged with me not even touching it just letting it sit on my desk we are down to 95%. I know you are suppost to cycle these batteries and stuff before u can actually see the fully life of it and i plan to do that. My question is i downloaded battery monitor widget and on the main screen its calling the battery a techno-Li-ion 1425/1500mAh battery. I know this isnt right ive cleared battery stats probably 10 times total now, through recovery and through the battery monitor widget app. Im hopping i didnt get ripped off and it just takes a few discharges for the phone to recognize the new battery? Any help would be appreciated.
I plan on letting the battery get to 15-20% and then charge it all the way up again and do these a few times, as well as clear the battery stats. This is what i read to do with new batteries? Please correct me if im wrong..
Click to expand...
Click to collapse
Which battery monitor widget did you use?
The one by 3c06 white icon with a batteryin the middle and graph going through it.
Sent from my PC36100 using XDA App
beanx said:
The one by 3c06 white icon with a batteryin the middle and graph going through it.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Ahh... yes. I know now which one
I have the exact same battery and I'm wondering is the percent shown total BS? Mine is showing 87% with 4000mV left after charging overnight with an SBC kernal.
Sent from my PC36100 using XDA Premium App
Yea I'm at 8hr40min as of right now @ 17% battery. I've had my display backlight turned down and have been at work the whole day doin nothing with my phone but light texting and posting in this thread. With my stock battery I get around 12 hours before the phone almost dies with regular/mild use.I'm starting to think this battery was a rip off.. hopefully once I charge it back up it will last longer but idk... If anyone has any tips or tricks to make this battery last longer please help me out.
Sent from my PC36100 using XDA App
FYI, after 12hrs, i'm only at 70%. That is with very poor signal at work all day, and playing pandora on the way in.
beanx said:
So battery monitor widget calling it a 1500mAh battery doesn't mean anything? Right?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
The newest version allows you to override that. Previously, the phone was telling it the capacity was 1500mah because that what the normal battery is supposed to be. The new version let me change it to 3500. So the % estimation should be accurate now. It is claiming I have 70% remaining or 2450mah. And 70% of 3500 is 2450. Now, where it came up with 2450, I have no idea.
The first time after ur charged the battery when u got it did u let it completely die or plug it in when it hit 10% or so?
Sent from my PC36100 using XDA App
My first full charge on the same battery I got the exact same behavior. I was on the Stock Kernal that came with CM7.
Second charge, after changing to the Tiamat SBC, my battery is screaming... 6+ hours of heavy usage (video, web, lots and lots of text and 30mins of calling) and I am still over 50%. By now, I would have had to charge the regular battery...
Very pleased with this thing...
well im about ready to unplug mine for the day and see how it goes, i fully charged it with the phone off with a wall charger. And have been cycling it witht he phone off by unplugging it when the light turns green, waiting for the light to turn off, then plugging it back in until the light turns from orange to green again. Ive been doing this for the last hour or so because somone in another thread about this battery said it help him out alot, i did unplug it when i first woke up and it dropped from 100 to 92 within 3 minutes so thats when i tried this cycling, i did unplug it in the middle after doing a dozen or more of these cycles and it staid at 100 for quiet a while then dropped to 99 after about 5-6 minutes of being unplugged and me browsing the web and market this being a huge improvement so id have to say the cycling of the battery does help idk how or why but whatever im not complaining ill post back later tonight once i see how the battery acts.
So far I've had terrible luck with this battery can't get more time than stock. Charging it with an SBC kernal and it doesn't help, was avoiding spending 60 bucks on a battery but I think Ive no other choice.
Sent from my PC36100 using XDA Premium App
im at 2 hours with it right now, down to 70% i used it pretty heavily about 30min ago to reflash cm7, savagedzen sbc kernal, download all my apps, setup launcher pro plus, and re confiugre everything. It dropped rather quickly from 100 to where its at now so i guess we will see, BMW is estimating 10hr40min remaining battery life right now which would put it at about where my stock battery would die at around 12-13 hours, so we will see :-\
*edit*
BMW now saying 12hr10min at 70% battery? weirddd...
*edit*
BMW now saying 16hr23min at 65% battery, ive been using it moderately, used 4G for a second and WiFi for a few minutes as well...
Here's why the drop...the Evo along with other phones use bump charging to charge the battery meaning when the light is green you have anywhere between
90 and 100 percent at 89 percent down to zero you should not see such a dramatic drop...its a Evo thing the large drop
Sent from my PC36100 using XDA App
MCL1981 said:
FYI, after 12hrs, i'm only at 70%. That is with very poor signal at work all day, and playing pandora on the way in.
The newest version allows you to override that. Previously, the phone was telling it the capacity was 1500mah because that what the normal battery is supposed to be. The new version let me change it to 3500. So the % estimation should be accurate now. It is claiming I have 70% remaining or 2450mah. And 70% of 3500 is 2450. Now, where it came up with 2450, I have no idea.
Click to expand...
Click to collapse
How do you override that value? I looked all through the widget settings and I'm not seeing it.
majorkillin said:
How do you override that value? I looked all through the widget settings and I'm not seeing it.
Click to expand...
Click to collapse
go into bmw, go to settings, monitoring preferences, second from the bottom battery capacity, just change that value from 1500 to 3500, took me a while to find it as well.
Hey Guys,
So i just recently bought the Seidio Extended Battery 3500mah for my HTC EVO 4G. I was happy to know that I'd have battery power all day until I noticed something strange happening when it was charging.
The charging light would be on but the battery charge percentage would go up and down. It would be on its way up for a period of time, then I'd come back a little later and the percentage would be down. This is a horrible surprise to know that this wonder battery isn't living up to its name.
The phone is rooted and I've tried putting a new ROM on and it still hasnt fixed the problem.
If anyone has experienced this problem or knows of a good ROM/Kernel combo it would be greatly appreciated to get all of your advice.
Thanks guys.
I have the same battery, and I've noticed the battery does behave differently on different roms. With Sense-based roms, the battery doesn't fully charge in trickle mode (after unplugging, quickly drops from 99% to about 90% in a few minutes). Also, sometimes after switching from the extended battery to the stock battery or vice-versa, the battery appears to drop 50% or more unless I wipe the battery stats in recovery, and then it reports the correct charge level.
I don't have any of the above issues with aosp-based roms such as cyanogenmod.
The EVO will NOT fully charge a 3500 battery without a SBC kernel.
Sent from my PC36100 using XDA App
Seido external battery charger...works like a champ and it does take awhile to charge up the 3500 battery...at least 5-7 hours if you drain it down to 10%. I do notice when I use the USB charger it charges faster but will not last nearly as long.
Get a wall charger!
I have had a wall charger and extra batteries since the first week I owned my Evo. Look on Amazon and Ebay.
I've been running mine for about 16 months on the *stock* rom, didn't go through any of the "special" break-in procedures - just started using it normally from the first charge and I still get amazing usage times after almost a year and a half. Are you using the stock HTC charger?
Hi Guys, first full charge is over, battery seems ok to me, as good as my Desire at least...
for the initial charge I pulled the phone out of the box and let it charge to green, then turned it on for an hour while charging and had a play...switched off and left till the morning so...10 hours or so.
Today it was used for 11 hours from 100% to 2% with 67% screen time (3h20m)...
Just put it back on charge and I'm not sure what to do this time round to maximize my batteries potential!!! lol
Shall I charge until green or another all nighter? I've read that these early charges are crucial in the life of a new One X
Thanks
Sent from my HTC Desire using XDA
Either should be fine. Over night or charge till green.
Cheers! Didn't fancy waiting till tomorrow for another One X session
Sent from my HTC Desire using XDA
While I don't get why this is funny, I'd say let it die and charge it to the max without switching it back on twice, it truly gave me a bump in battery life.
Cheers
i9250 ICS 4.0.2 stock
I did something simlair, when it got to 10% i turned the phone off then charged and have now got a day 1/2 with modrate usage.
i thought it was no longer necessary to charge phones before first use?
Perhaps, was just being extra cautious as its non-removable...
Sent from my HTC Desire using XDA
I've never been convinced by this charge/discharge cycle. Lithium batteries don't like to be fully depleted, top up charges are their preferred usage pattern.
The full cycle days left with NiCad! The batteries have changed my friends, it's about time the advice did, too.
Most of the advice I hear from experts is that heat, overcharging and deep cycling is what kills Lithium based rechargeables, so if you know you will have access to a charger, keep the phone between 30-80% charged with regular top ups and don't leave it on your dashboard in the sun.
I would warmly suggest you deplete your battery fully for the first 10 times doing whatever and charge the phone while it's off. It does wonders to my X. Started off with under 3 hrs of screen time to over 4 hrs in 10 charges.
Sent from my HTC One X using Tapatalk
Just because your battery life got better, and you did deep discharges, doesn't mean one caused the other. There is a difference between a causal effect and correlation. But whatever. I'll believe it when I find a reputable study.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
So many people here have their own opinions on batteries.
CHARGE IT HOW YOU SEE FIT. CHARGE WHEN YOU NEED TO.
There we go. All of this fuss over batteries when most of the time any effect seen is placebo.
I got my phone on the 5th and I'm currently on charge number....74...I think?