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[Q] What's currently the best battery for i9000?

Hello everyone!
I've been owning my wonderful i9000 for two years now, and for a few months battery life has become terrible, even on stock GB ROMS (i'm currently on a CM10 nightly, and it lasts no more than.. 12 hours on moderate use, 6-7 in regular use.
So I've decided to test its capacity with Nova Battery Tester (pretty good app btw), and the result showed me that it had dropped to 750 mAh, that's to say half the stock capacity.
According to the result, and due to my financial incapacity to buy a new Android Phone for now, I've decided to buy a new battery, but I can't decide which one to choose.
I'd really appreciate if some of you could give me some advice.
Have a nice day!

Lurdy said:
Hello everyone!
I've been owning my wonderful i9000 for two years now, and for a few months battery life has become terrible, even on stock GB ROMS (i'm currently on a CM10 nightly, and it lasts no more than.. 12 hours on moderate use, 6-7 in regular use.
So I've decided to test its capacity with Nova Battery Tester (pretty good app btw), and the result showed me that it had dropped to 750 mAh, that's to say half the stock capacity.
According to the result, and due to my financial incapacity to buy a new Android Phone for now, I've decided to buy a new battery, but I can't decide which one to choose.
I'd really appreciate if some of you could give me some advice.
Have a nice day!
Click to expand...
Click to collapse
In time batteries will lose there capacity. This is something you cannot prevent. It's caused by some chemical stuff inside your battery. You'll need a new one.

Yeah, I figured it out, that's why I asked advice on which battery to buy (a stock one, an extended one...)

You can buy a 1650mah one which is the same size or a bigger one but it will require a bigger back case. Watch out for fakes (eg. "3500mah from Hongkong")
Go to the Accessories section of the I9000 forum, lots of battery threads.
Sent from my GT-I9000 using Tapatalk 2

I’ve got a 1800mAh one which is same size as stock one.

Apparently the galaxy s plus has a 1650mAh battery, which supposedly also fits in our regular i9000 phones. A Dutch webshop sells it here, no idea if they're shipping to other countries though. It's a small 150mAh upgrade.
http://www.mobielbereikbaar.nl/product/samsung-eb575152lu-accu-origineel

Post-purchase: would you buy UMI ZERO?

Hi guys, I am interested in UMI ZERO but wondering if it lives up to the hype. I would like to know from those who purchased and been using it, would you buy it given your experience with it? Just want to confirm that the hardware and ROM that comes with it are both good. Thank you for your help.

Just want to say thank you for those who have participated in the poll.
For those who voted NO, would you care to share your main issues with the device? Thank you.

There are 2 important issues: WIFI bug and unexpected reboots, not solved yet in the v09 update.
Definitely , I would not buy it again.

For me the device works perfect with Arcatarc's eumi rom. I also experienced reboots with the original Umi rom. But since I changed to Arcatarc's rom the device is reliable, with no reboot in the last month. Also batery life is good with 2 to 3 days standby and 3 to 4 hour display on-time. Wifi works with most routers perfect, but with my older Netgear with alternative FW the wifi was very buggy. With the router at work I have perfect wifi speeds (on 2.4 and 5 GHz), altough the signal is a bit weaker as my nexus tablet.
So I would recommend this device if you are willing to change the rom.

I would recommend you NOT to buy the UMI Zero
xdadevr said:
Hi guys, I am interested in UMI ZERO but wondering if it lives up to the hype. I would like to know from those who purchased and been using it, would you buy it given your experience with it? Just want to confirm that the hardware and ROM that comes with it are both good. Thank you for your help.
Click to expand...
Click to collapse
I have had multiple problems with UMI Zero within a month of using it. Am listing them below:
Randomly reboots - Have tried many ROMs, all have this problem but in different frequencies
Microphone has failed - Yes! I am using only the headset now for calls
Capicitive keys have become laggy and unresponsive - Sometimes they work, sometimes they do not
Support from UMI is not good. Sellers aren't good either - UMI asks you to contact seller, seller asks you to ship back at own cost, wait for more than a month as they verify and ship you a new one (hopefully) over mail (Geekbuying)
GPS - seldom locks
WiFI has issues
Battery Drain happens faster than you would think it should (And it is not the screen, I guess it has to do with the Kernels)
ROMs are all low maturity and no sight of Lolipop due to Mediatek issues

..
---------- Post added at 12:56 AM ---------- Previous post was at 12:54 AM ----------
TheAmazingP said:
For me the device works perfect with Arcatarc's eumi rom. I also experienced reboots with the original Umi rom. But since I changed to Arcatarc's rom the device is reliable, with no reboot in the last month. Also batery life is good with 2 to 3 days standby and 3 to 4 hour display on-time. Wifi works with most routers perfect, but with my older Netgear with alternative FW the wifi was very buggy. With the router at work I have perfect wifi speeds (on 2.4 and 5 GHz), altough the signal is a bit weaker as my nexus tablet.
So I would recommend this device if you are willing to change the rom.
Click to expand...
Click to collapse
Emui or superleggera?
Sent from my UMI ZERO using XDA Free mobile app

drodero said:
..
---------- Post added at 12:56 AM ---------- Previous post was at 12:54 AM ----------
Emui or superleggera?
Sent from my UMI ZERO using XDA Free mobile app
Click to expand...
Click to collapse
I would reccomend complete Emui and as said before I think its the best rom I have used so far and would be reluctant to try Mui 6 as it very similar and has it own problems

I'm done with mine. Had it for around 2 months and it's just not usable as an everyday phone.
The biggest problem I have is with the battery. I get at the very most 1 hour of web browsing before the phone shuts down. That simply isn't good enough. The other day I went to an exhibition and started the day fully charged. I took about 15 photos there and was on whatsapp for about 10 minutes before it shutdown. I can't live with that. I got rid of my last phone (HTC One X) because it was 2 years old and the battery had got to the point where it wasn't lasting me long enough. Despite how poor it had got, it still lasted twice as long as the Umi!
Even more annoying is I just don't know when it's going to shutdown. Sometimes it does it at 30%, other times at 50%. The few times it's actually got below 30% it is losing about 1% for every 5s the screen is turned on once it's past 30%. I've tried several battery calibration apps but none of them have resolved the problem.
My battery has swollen now and there is a gap between the frame and the back cover. It's only a matter of time before it forces the screen off. With all the other problems the phone has, it's just wont be worth replacing the battery or cover.
I've come to the conclusion that UMI have honest intentions but they just don't know what they're doing. They've released so many stock ROMs and it doesn't feel like they have any idea whatsoever how to resolve their issues (reboots, battery, poor signal, MAC issues etc...).
They've now got 2 new phones coming out (Hammer and Zero 2) and I very much doubt we'll see any new ROMs. Perhaps a few more customisations (there must be some they've missed!) but none that actually fix the major issues with the phone.

I bought this phone a couple of years ago because I thought the design was gorgeous. I never really used it as a regular phone. After a while it quit receiving a phone signal. After research I found out that many people have the same issue. Apparently there is a defect in the design that makes the antenna connector come loosen from the motherboard. Probably got melted off because the phone literally got so hot that I could not hold it.
I even bought a second one off of E-bay and it had the exact same issue. The seller actually tried to pawn off this defective piece of trash. When I told him I knew what the problem was he didn't contest it. I did get my money back, but what an exasperating ordeal. So now I have a very nice glass & metal 5 inch tablet.

How much of a concern is the battery life (specifically, SOT)?

Hello everyone!
Background (less important): So, I've been looking at getting a Oneplus phone for a while but when my last 2 phones died back to back, I got an S6 from insurance. Problem with the S6 being just about everything (no SD card expansion, no removable battery, no rooting abilities, etc). I've been keeping an eye out for the right time to get a new device and, now that my device memory is full, I'm looking at a new phone.
I was looking at picking up either the S7 or the Oneplus 3T. The S7 is under $500 on amazon, which is pretty surprising (thought it would be much more expensive), has expandable SD card support, pretty good battery, good camera, lots of RAM, etc and they just got the ability to root. It also has some cool options like medical sensor stuff, etc (not all that important, just extra bells and whistles).
However, the 3T appears to have a very active rooting/mods community, and overall, many people have said this is the best phone they've ever had so I'm leaning towards picking that up. The only downsides I've seen/heard are the camera on the 3T isn't as good (definitely not the end of the world, it's still an upgrade from my S6) and I've seen a number of battery drain threads and that genuinely concerns me. I understand that those with the issue are likely going to be a lot more vocal than those that have everything working but I was hoping to gauge how much of a concern this really is and if anyone has determined the cause of the battery drain and if there's a solution. What I don't want to do is get a developer friendly phone that dies super quick (I understand it charges fast too but I don;t want to rely on that).
Anyway, this is kind of an important decision for me as my goal is to keep a phone for 3 years so I'm looking for a phone that is pretty well future proof (for a while, I know 3 years is a long time in the technology field) and I don't want to "settle" for a phone that's going to give me nothing but headaches.
If you guys could help me understand how big of a deal the battery drain is, it would be greatly appreciated! Thanks!

Okay here's the deal. You're posting in the Oneplus 3T forum and people are clearly going to be biased, you're lucky I'm coming from a Galaxy Note 7 and my girlfriend has an S7 Edge.
The experience you're going to get with a Samsung is far richer in features and the camera is superior. The phone just yells premium out of it's every part. The microphone will record your voice better as well.
However, if you're looking for a future proof phone the Oneplus 3T is clearly a winner. People are crying about drain and SoT simply because they're more pretentious and pay more attention to details than Samsung users. All Android phones have some sort of drain and with time, stock ROMs get more laggy and battery consuming. The advantage you have on oneplus is that you can apply all sorts of custom ROMs, kernels and mods to squeeze out the most of your battery, while on Samsung you're more prone of getting stuck with drain sooner or later.
Here's where OP3T's top card comes, dash charge is amazing. At this point I don't even care about SoT since I can charge my phone to 60% in 30m. I'm getting 4-5 hours of SoT without tweaks and 4G always on data using stock ROM. Who even wants to stick their eyes in the phone screen for more than that?
You can't go wrong with the OP3T unless you're willing to wait for the next oneplus.
Bottom line, the drain people have been experiencing on OxygenOS 4.0.3 is of little concern, especially since it's improves with Beta 12 7.1.1. Stop overthinking and get the phone you like.

Alek123 said:
Okay here's the deal. You're posting in the Oneplus 3T forum and people are clearly going to be biased, you're lucky I'm coming from a Galaxy Note 7 and my girlfriend has an S7 Edge.
The experience you're going to get with a Samsung is far richer in features and the camera is superior. The phone just yells premium out of it's every part. The microphone will record your voice better as well.
However, if you're looking for a future proof phone the Oneplus 3T is clearly a winner. People are crying about drain and SoT simply because they're more pretentious and pay more attention to details than Samsung users. All Android phones have some sort of drain and with time, stock ROMs get more laggy and battery consuming. The advantage you have on oneplus is that you can apply all sorts of custom ROMs, kernels and mods to squeeze out the most of your battery, while on Samsung you're more prone of getting stuck with drain sooner or later.
Here's where OP3T's top card comes, dash charge is amazing. At this point I don't even care about SoT since I can charge my phone to 60% in 30m. I'm getting 4-5 hours of SoT without tweaks and 4G always on data using stock ROM. Who even wants to stick their eyes in the phone screen for more than that?
You can't go wrong with the OP3T unless you're willing to wait for the next oneplus.
Bottom line, the drain people have been experiencing on OxygenOS 4.0.3 is of little concern, especially since it's improves with Beta 12 7.1.1. Stop overthinking and get the phone you like.
Click to expand...
Click to collapse
So just to be clear, you're saying that the battery drain people are experiencing is likely related to a version/rom/etc that they are using and they're too lazy to try different things to try and optimize it but even if I am that lazy, the dash charge still works well enough that it shouldn't be an issue for most people (assuming you're near a charging socket), is that a pretty good synopsis?
Just want to understand if you believe the issue is user error (not using the right software components/settings), user pickiness (IE they're perceiving a problem that's not really there) or if there are the occasional phone that experiences battery issues but it's a very small number.

jbrookley said:
So just to be clear, you're saying that the battery drain people are experiencing is likely related to a version/rom/etc that they are using and they're too lazy to try different things to try and optimize it but even if I am that lazy, the dash charge still works well enough that it shouldn't be an issue for most people (assuming you're near a charging socket), is that a pretty good synopsis?
Just want to understand if you believe the issue is user error (not using the right software components/settings), user pickiness (IE they're perceiving a problem that's not really there) or if there are the occasional phone that experiences battery issues but it's a very small number.
Click to expand...
Click to collapse
I think that that's what he wants to tell you. To myself : I have the 3T since yesterday and since I'm coming from a M8 it's a huge upgrade for me. But for your comparison : my brother has the S7 and plenty of my friends have the S7E. S7E is in my opinion a superior phone in terms of camera, mic, display, waterproof .. etc. All the things that make the S7/E more superior is only because Sammy has done a better job, BUT what they didn't was to make the phone future proof. The thing with OP3T is that it also does/contains all of the superior things, it's just not that good. The camera is fine for me, I don't care about waterproofness, a 2K display is nice but you won't notice the difference anyway except for the brightness if you compare them both side by side. I'm pretty sure I've made my point.
Now for the 3T's battery drain : I was still on OxygenOS 3.5.4 because I didn't felt the urge to update. Woke up at 7 AM and plugged it out, somewhere between 10 - 11 AM I was on something like 27 percent. It was somehow strange but ok. Now that I couldn't resist to flash CM13 I've noticed a HUGE difference. I flashed CM13 at around 5 PM while I was charging it (was at 90% at 5PM) and now after 4h of using it I'm at 68%. Huge differnce no doubt and I'm staying at CM13.
Hope I could help you

talpes said:
I think that that's what he wants to tell you. To myself : I have the 3T since yesterday and since I'm coming from a M8 it's a huge upgrade for me. But for your comparison : my brother has the S7 and plenty of my friends have the S7E. S7E is in my opinion a superior phone in terms of camera, mic, display, waterproof .. etc. All the things that make the S7/E more superior is only because Sammy has done a better job, BUT what they didn't was to make the phone future proof. The thing with OP3T is that it also does/contains all of the superior things, it's just not that good. The camera is fine for me, I don't care about waterproofness, a 2K display is nice but you won't notice the difference anyway except for the brightness if you compare them both side by side. I'm pretty sure I've made my point.
Now for the 3T's battery drain : I was still on OxygenOS 3.5.4 because I didn't felt the urge to update. Woke up at 7 AM and plugged it out, somewhere between 10 - 11 AM I was on something like 27 percent. It was somehow strange but ok. Now that I couldn't resist to flash CM13 I've noticed a HUGE difference. I flashed CM13 at around 5 PM while I was charging it (was at 90% at 5PM) and now after 4h of using it I'm at 68%. Huge differnce no doubt and I'm staying at CM13.
Hope I could help you
Click to expand...
Click to collapse
Thanks for the advice, particularly about the future proofing. I honestly don't get why Samsung hasn't moved to a USB C connector yet . . . Seems like a no brainer, that's clearly the direction everything is heading.

jbrookley said:
So just to be clear, you're saying that the battery drain people are experiencing is likely related to a version/rom/etc that they are using and they're too lazy to try different things to try and optimize it but even if I am that lazy, the dash charge still works well enough that it shouldn't be an issue for most people (assuming you're near a charging socket), is that a pretty good synopsis?
Just want to understand if you believe the issue is user error (not using the right software components/settings), user pickiness (IE they're perceiving a problem that's not really there) or if there are the occasional phone that experiences battery issues but it's a very small number.
Click to expand...
Click to collapse
Yeah, that's my opinion based on experience as a former Oneplus One, Samsung Galaxy Note 7 and current Oneplus 3T user. People mostly started complaining about drain with OOS4.0.3 (latest current stock) and it will definitely be fixed with OOS nougat 7.1.1. This "battery drain" stigma that you're currently placing on the OP3T has been placed on all major flagships at some point. I can't be certain how well this device will be officially updated in the future, or how the battery will hold up after many many cycles, but i can assure you it will hold up better than an S7.
jbrookley said:
Thanks for the advice, particularly about the future proofing. I honestly don't get why Samsung hasn't moved to a USB C connector yet . . . Seems like a no brainer, that's clearly the direction everything is heading.
Click to expand...
Click to collapse
They did have USB-C on the Note 7. At the point of S7 launch it wasn't that widespread.

Alek123 said:
Yeah, that's my opinion based on experience as a former Oneplus One, Samsung Galaxy Note 7 and current Oneplus 3T user. People mostly started complaining about drain with OOS4.0.3 (latest current stock) and it will definitely be fixed with OOS nougat 7.1.1. This "battery drain" stigma that you're currently placing on the OP3T has been placed on all major flagships at some point. I can't be certain how well this device will be officially updated in the future, or how the battery will hold up after many many cycles, but i can assure you it will hold up better than an S7.
Click to expand...
Click to collapse
I'm actually really glad you mentioned that because, you're right, I have definitely experienced various stages of battery drain between updates on Samsung devices except I didn't get to choose when or if I wanted to update with those. At least I'll now be in control of those things! Made up my mind, ordering the Oneplus 3T now! Thanks!

jbrookley said:
I'm actually really glad you mentioned that because, you're right, I have definitely experienced various stages of battery drain between updates on Samsung devices except I didn't get to choose when or if I wanted to update with those. At least I'll now be in control of those things! Made up my mind, ordering the Oneplus 3T now! Thanks!
Click to expand...
Click to collapse
I am certain you won't regret getting this device. Let me know if you need any help or have any more questions via PM.

6-7 hour of sot per charge every 22-28 hours.

technology is weird. people can get battery drains for all kinds of reasons. google services may be a reason. or some wakelock by some random app that never was a problem, but after installing it on a certain rom on a certain phone it suddenly is a problem. and weirdly enough you are the only one experiencing it. it might be something with the rom where a factory reset may help. some people go ahead and flash another rom and then it is gone. sometimes they make the wrong conclusion that it is the roms fault. or the kernels or whatever. it happens on every phone. just go to a random phones forum and you will find threads with people complaining about battery drain. and they will be the only ones with this particular issue. the vast majority of users does not have such issues. if they do you will find out about it soon enough and after some time there will be an update that fixes it.
my sot is around 5 hours depending on what i do. using media like movies gives you more screen time, heavy gaming gives you less screen time.

Battery draining like crazy (even after replacing and trying other ROMs)

I've have a Mi 5 since 2017 and at the beginning of this summer the battery life deteriorated to 50%, it barely lasted a day so I had it changed at the authorized service. However, even though they claimed they put in a brand new one, it still discharges exactly like the previous one. So I tried flashing to another ROM, I've tried Pixel Experience and AOSP Extended, but they both drain the same. I feel kinda flustered by this and I'm curious if you guys had any such experience. I've read somewhere the flashing kernel might help but I figured I'd ask first.
Thanks!

Question Impact MFD on battery and heat

Hello, I got a Zenfone 8 from Amazon Warehouse with MFD 4-21. Just after receiving i read about the Ramdump issues with 4-21 and 5-21 MFD, so far nothing happened to my phone. My problem is just the bad battery life and heating issues. I optimized bluetooth (do not know if I disabled optimisation for it), with this I got a little more battery and heating in pocket got less.
Also I flashed Kirisakura Kernel with the hope of getting enough battery life out of the phone to last through the day. Compared to my previous phone (Unihertz Atom XL) I have got much worse battery life. The old phone got about 4300 mah and a smaller screen, but it was in no way optimized and still had about 50% on the end of the day. With the Zenfone on the other hand I get from the morning 06:00 (90 % charge limit) to about 14:00 and would have to recharge. Usage is the same (Health app which is activated every 5 min and needs BT, some news-browsing)
I am now thinking about sending the phone back and switching to a refurbished Pixel 5 (which schould have better battery) or get a brand new Zenfone 8. I like the look and feel of the phone very much, but I do not want to have to charge throughout the day.
If the thermal and battery problem would be from that, that the phone is manufactured in April 2021 I would rather order a brand new Zenfone 8 (in the hope in getting really a new one with MFD end 2021).
What are your thoughts on this?

McHoffi said:
Hello, I got a Zenfone 8 from Amazon Warehouse with MFD 4-21. Just after receiving i read about the Ramdump issues with 4-21 and 5-21 MFD, so far nothing happened to my phone. My problem is just the bad battery life and heating issues. I optimized bluetooth (do not know if I disabled optimisation for it), with this I got a little more battery and heating in pocket got less.
Also I flashed Kirisakura Kernel with the hope of getting enough battery life out of the phone to last through the day. Compared to my previous phone (Unihertz Atom XL) I have got much worse battery life. The old phone got about 4300 mah and a smaller screen, but it was in no way optimized and still had about 50% on the end of the day. With the Zenfone on the other hand I get from the morning 06:00 (90 % charge limit) to about 14:00 and would have to recharge. Usage is the same (Health app which is activated every 5 min and needs BT, some news-browsing)
I am now thinking about sending the phone back and switching to a refurbished Pixel 5 (which schould have better battery) or get a brand new Zenfone 8. I like the look and feel of the phone very much, but I do not want to have to charge throughout the day.
If the thermal and battery problem would be from that, that the phone is manufactured in April 2021 I would rather order a brand new Zenfone 8 (in the hope in getting really a new one with MFD end 2021).
What are your thoughts on this?
Click to expand...
Click to collapse
Hello, with hot environmental temps, phone heats up easily and that's normal if you're running stock Soc values/bloated OS.
The only way to reduce that, is to install a vanilla rom like Los 19.1 or AEX/Omni (at worst with microG or smallest gApps) and limit a bit the max frequencies for both Cpu and Gpu.
No miracles at all but really acceptable

francescod said:
Hello, with hot environmental temps, phone heats up easily and that's normal if you're running stock Soc values/bloated OS.
The only way to reduce that, is to install a vanilla rom like Los 19.1 or AEX/Omni (at worst with microG or smallest gApps) and limit a bit the max frequencies for both Cpu and Gpu.
No miracles at all but really acceptable
Click to expand...
Click to collapse
Thank you for your answer!
Until now I did not have phones which get hot (rather warm) during normal use, also not during summer. Under heavy games this is normal for sure, and expectable.
Are there any disadvantages in using one of the custom roms? I had lineageos on older phones (Galaxy S5 and Oneplus 6t), with the Oneplus there were some problems and I did not see any advantage in using it. Is everything running smooth and working? If not what function is affected by which rom?
I read in another thread that someone managed to get over 8 hours SOT with LOS, this would be nice if there is no disadvantage in functionality and usage.
So you would not recommend to replace the "old" Zenfone with a new one with newer MFD?
I find it a pitty that such a nice phone has those problems, this is why I thought about switching to a Pixel 5 (size, camera, battery and (community) support).

McHoffi said:
Thank you for your answer!
Until now I did not have phones which get hot (rather warm) during normal use, also not during summer. Under heavy games this is normal for sure, and expectable.
Are there any disadvantages in using one of the custom roms? I had lineageos on older phones (Galaxy S5 and Oneplus 6t), with the Oneplus there were some problems and I did not see any advantage in using it. Is everything running smooth and working? If not what function is affected by which rom?
I read in another thread that someone managed to get over 8 hours SOT with LOS, this would be nice if there is no disadvantage in functionality and usage.
So you would not recommend to replace the "old" Zenfone with a new one with newer MFD?
I find it a pitty that such a nice phone has those problems, this is why I thought about switching to a Pixel 5 (size, camera, battery and (community) support).
Click to expand...
Click to collapse
The main reason for the heat issue is the bad built 888, and in our compact dimensions can only be worse than expected.
If you can go vanilla, that's for sure the best option in consumption/temp terms, otherwise even microG or at worse with smallest gApps you'll be in a better situation than stock, still tweaking freqs as I said above by default .
Bugs might be on NFC payments department, shouldn't there be in any other side, considering these A12 roms are on "first weeks of global tests".
On Los you loose Asus Camera and Dialer as their best apps, but you can go with gCam though with pretty results.
Omni/AEX should also have FM radio if you're interested in and Asus camera.
Since you're already rooted, it's just a matter of a Format to go with any rom, and an eventually second Format to go back easily with the Asus A12 RAW file.
I was forgetting....only a newer device than, let's say November 2021, might give you a real "ramdump proof" device, but heat remains the same, unless they also modified heat dissipation that's most unlikely to happen.

I installed MicroG, this helped with battery life, but brought also disadvantages (calendar, contacts). I also got a Pixel 5 to test, and am until now more for the P5. The battery lasts me a full day and this without taking the disadvantages in usability on me. With MicroG the battery life still was not as I would like it to be.
I liked the ROM of Asus, especially because of the battery options and modes, also the options for Dual Band Wifi and Hyperfusion (Wifi + Data).
I am thankful for your recommendations. But I am tending to stay with the Pixel where I do not need to do so much to the software to work for me.