Savaged Zen Concerns? - EVO 4G Q&A, Help & Troubleshooting

xx

http://forum.xda-developers.com/showthread.php?t=894880
There are SBC and no SBC versions of Tiamat and SZ. You probably downloaded the one with though.
Also,
http://greenfieldroid.wordpress.com/2010/12/27/battery-tips-for-longer-battery-life/

Seems that 90% of the battery problems with SBC, was with the Chinese battery and not the stock. I'm running an SBC kernel with absolutely no problems with the stock battery. As far as charging past full, that's a new one on me. I can tell you that letting it die is bad for the battery
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SBC kernel can cause battery life to get shorter and shorter more quickly than a non SBC kernel, but I don't know if it will kill a stock battery as fast as it can a chinese one.
I think the big problem, esp when using chinese batteries, is leaving the phone on the charger all the time, like driving in the car on a long trip with the phone plugged in to use GPS.
SZ ROM has an on/off switch for SBC which is good for that reason (as well as giving you a choice).

Related

Is the trickle charging kernel working for you without any negative effects?

Hello,
I was just wondering how many people use trickle charging and what percentage of the people that use this kernel have had bad effects. Post a reply or vote on a poll.
Thanks
Edit: How did this get into the android development forum. I meant to put this in general. Please move it there.
Thanks
I've used it on the Stock & Extended battery without issue. msm####'s SBC-15 kernel.
Well over 2 months now.
gokuman56 said:
Hello,
I was just wondering how many people use trickle charging and what percentage of the people that use this kernel have had bad effects. Post a reply or vote on a poll.
Thanks
Edit: How did this get into the android development forum. I meant to put this in general. Please move it there.
Thanks
Click to expand...
Click to collapse
I've used it on the stock battery for about 2-3months now with no noticeable side effects. Battery stays at 100% for a little while, instead of dropping 10% depending on where the battery was during it's on/off charge cycle with non SBC kernels.
Mod alert to have the thread moved. Triangle in the top right corner of your post.
Greatest kernel there is. Have used them for 3 months or more with stock and extended and have had no issues what so ever. Except for amazing battery life.
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i use miui rom with the savage kernel sbc 1.6 and don't have any problem at all on extended battery or stock.
Never had a problem with these wonderful kernels.
I haven't had any problems. been running sz on cm7 since the beginning off and on. I'm on the teamwin HDMI kernel right now though
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Apologizing before I can flame ruins my fun....
But yeah best kernel ever with extended battery.
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So far so good. I am using the latest SBC V7 right now on my 3500 extended battery. My Rom is myns rls1. I had 100% for a good 2hr and 10mins or so.
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I am pretty sure the so called "problem" with SBC kernals is a result of people buying cheap crappy chinese batteries, having one or two die, and not wanting to be blamed for them buying crappy batteries blamed something else. "OH SBC DID IT!"
just my 2 cents since this has only happened with a few batteries from my understanding and they were all cheap chinese batteries.
ruben1221 said:
So far so good. I am using the latest SBC V7 right now on my 3500 extended battery. My Rom is myns rls1. I had 100% for a good 2hr and 10mins or so.
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Click to expand...
Click to collapse
100% for 2hours? How much use?
I have been using SBC since the day it went public. I use it on a stock battery and a cheap a$$ eBay battery. Never had a single problem, longest i have went was at 100% was around 7 hours (0 use of course).
I have been using SBC since it was public quite a while back. No problems except better battery life.
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No problems. Been using it since it was released
swyped from my cyanogenized and gingerbreaded EVO
I didn't use my phone for the 2hrs after I took it off the charger. I think I can get 20+ hours with moderate use. I think this kernel is working for me.
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Just switched like a week ago, I just take it off the charger before I fall asleep, don't want it on the charger for 7-9 hours. No issues yet. My battery was at 100% when I took it off the charger last night. I checked my Facebook & did a couple other things for about 20 mins and then turned wifi off & went to sleep. When I woke up 9 hours later it was still at 100%, and stayed that way for another 20 mins of use. Best battery life I've seen in a long time.
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Been using SBC kernels for awhile now, on multiple roms, and experiencing AMAZING battery life. With zero problems twords stock and 3500 ma batteries. I run this kernel on my company phones that are rooted as well. on average over 10 devices at a time with 0 compaints to date.
Vaelpak went back to a crappy kernel on his new 3.2 and my battery life started sucking it up again. Flashed back to SBC for Netarchy's 4.1.9.1 Non-HAVS v7. Ive found that to be the best when it comes to draining.
Even under heavy use I still get a solid 12 hours of battery on my 3500. Thats running GPS, Wifi, wifi tether, lots of emails, texts, and other communications on a busy day. During slow times Ive gotten a single charge to last 57 hours of light usage. That was with wifi and bluetooth enabled the whole time and juice defender running as well.
I have since recently dropped juice defender, and only using SBC, and seeing ~ 30-35 hours before full drain on normal usage.

[Q] What is the best kernals for Cyanogen mod 7 rc4

Hi I've been looking around to find good kernals while running cyanogen mod 7 rc4. Some of the kernals I install like netatchy gives the screen a weird flickering. Can someone suggest a good kernal that's overclockable and stable. Thanks
Netarcys kernel really isn't for cm7 that's probably why its flickering. You should try savage zens latest sbc or non sbc kernel or tiamats sbc kernel both are pretty good. I'm running the tiamat sbc 3.3.4(great battery life) and I'm pretty happy with it.
Tiamat link. Be sure to get the evo version because he does kernels for the incredible also.
http://forum.xda-developers.com/showthread.php?t=972746
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Thanks! Ill try them and I'm kinda new to kernals so what is the difference between SBC and no SBC
chvezsd said:
Thanks! Ill try them and I'm kinda new to kernals so what is the difference between SBC and no SBC
Click to expand...
Click to collapse
In a nutshell, sbc is a method of charging that allows you to "fully"(trickle) charge your battery. Normal kernels really only let you charge to about 90% for safety measures; while sbc lets you fully charge letting your battery completely fill. There's a few threads that talk about it if you search around to get more "details". I've been using them for months without any problems whatsoever. Good luck
Honestly I get great performance out of the stock kernel.
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Thanks, I just flashed the tiamat 3.3.4 SBC and everything so far is great! Btw I couldn't find it in the changelog but does this fix 4g cuz on stock kernal both the 3g icon and 4g icon show
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It's called a kernel.
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chvezsd said:
Thanks, I just flashed the tiamat 3.3.4 SBC and everything so far is great! Btw I couldn't find it in the changelog but does this fix 4g cuz on stock kernal both the 3g icon and 4g icon show
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Click to expand...
Click to collapse
That happens to me sometimes but not all the time. I believe that's still a problem with cm7 in general though. For best results I recommended going to settings/ cyanogenmod settings/ performance/CPU settings then use the "smart ass" governor. It has provided me with the best overall battery/performance. I also have my min freq at 245 and max freq at 1152.
Those are also my settings, I've discovered my evo can't go beyond 1.15ghz without locking up. I've been trying to get to 1.2 but no go
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chvezsd said:
Those are also my settings, I've discovered my evo can't go beyond 1.15ghz without locking up. I've been trying to get to 1.2 but no go
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Click to expand...
Click to collapse
Ahh neither can mine its reboot nation once I pass up 1190mhz.
Yeah wish i was a lucky one :/, so after installing kernels I'm getting 41.2 mflops and my quadrant benchmark is 1221
What are you getting?
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chvezsd said:
Yeah wish i was a lucky one :/, so after installing kernels I'm getting 41.2 mflops and my quadrant benchmark is 1221
What are you getting?
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Click to expand...
Click to collapse
I don't really put so much stock in scores anymore they don't mean anything to be honest. Dirk used to be a score whore but I just removed the apps so I wouldn't worry about it anymore. I came to terms that my scores won't go much higher then what they already were. Just ran 40 mflops and 1220 bench.
Yeah I just like the braging rights, hopefully they can figure how to overclock the gpu soon tho
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chvezsd said:
Yeah I just like the braging rights, hopefully they can figure how to overclock the gpu soon tho
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Click to expand...
Click to collapse
Bragging rights how's this for bragging rights; my 12 year old cousin has a tmobile g2(newer processor) which is stock clocked at only 800mhz. His phone scores a 60 on linpack and over 1500 on benchmark and its not even rooted lol. This is why I don't care about scores anymore
I just died a little inside :/ lol I wanna upgrade to the evo 3d soon tho and that's a dual core
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dirkyd3rk said:
In a nutshell, sbc is a method of charging that allows you to "fully"(trickle) charge your battery. Normal kernels really only let you charge to about 90% for safety measures; while sbc lets you fully charge letting your battery completely fill. There's a few threads that talk about it if you search around to get more "details". I've been using them for months without any problems whatsoever. Good luck
Click to expand...
Click to collapse
I just wanna correct this misconception because it led me astray and it took a good amount of research to realize this was wrong.
All kernels will charge the phone to 100%. That's not an issue. What happens is, once they are charged to 100%, they start draining battery again, and coupled with the fact that li-ions inherently lose charge over time, and the fact that most people haven't conditioned their battery's memory by properly charging it, by the time you pull your phone off the charger it's already lost that 10% (give or take).
Trickle charging hopes to fix this by "trickling" a small charge into the battery constantly once it hits 100%, to compensate for discharge, so that it stays at 100%. The problem with this is, it pushes a current through the battery constantly, and that tends to shorten the life of lithium-ion batteries over time. You may get better immediate battery life off the charger, but you'll kill your battery quicker. Come months from now, your battery life isn't going to be what it should, whether you notice it or not.
If you want to minimize the discharge, you can take a couple safer steps:
- Condition your battery. Charge it to a true 100%. This will mean turning the phone off and on a few times while it's on the charger to make sure it's actually at 100%. Then completely discharge it until the phone cannot turn back on. Do this a couple times in a row, and repeat every month or so. This conditions your li-ion battery's internal charging memory so it knows its true charge potential.
- Charge your phone while it's off. It won't drain nearly as much battery this way, so when you're ready to take it off the charger it'll be much fresher.
- Avoid prolonged charging and continuous charging, because it can confuse the li-ion's internal charging memory. Rather than re-charging it when it hits 60%, let it drain as low as possible before you bother recharging it. Bursts of short charges don't harm the battery, but they make it "forget" how much it can be charged.
In short, SBC kernels are bad for your battery.
---
Also, Savaged-Zen 1.0.1 BFS no-SBC has been the best kernel I've found for the Evo 4G. Granted I haven't had this thing that long and there may be another gem lying around somewhere, but given the popularity of SZ, I doubt it. It's a very good, smooth kernel. It's giving me the best performance of what I've tried (most of the popular ones).
As for CFS vs BFS, flip a coin. Some will swear CFS is smoother, others will swear BFS is supposed to be smoother. BFS gives me more responsiveness personally, but I think it mostly depends on your workload. I keep scarcely-used tasks killed and I don't use widgets, so the lack of many processes may be what makes BFS better for me. Try both and see which feels smoother in daily use.
router54g said:
I just wanna correct this misconception because it led me astray and it took a good amount of research to realize this was wrong.
All kernels will charge the phone to 100%. That's not an issue. What happens is, once they are charged to 100%, they start draining battery again, and coupled with the fact that li-ions inherently lose charge over time, and the fact that most people haven't conditioned their battery's memory by properly charging it, by the time you pull your phone off the charger it's already lost that 10% (give or take).
Trickle charging hopes to fix this by "trickling" a small charge into the battery constantly once it hits 100%, to compensate for discharge, so that it stays at 100%. The problem with this is, it pushes a current through the battery constantly, and that tends to shorten the life of lithium-ion batteries over time. You may get better immediate battery life off the charger, but you'll kill your battery quicker. Come months from now, your battery life isn't going to be what it should, whether you notice it or not.
If you want to minimize the discharge, you can take a couple safer steps:
- Condition your battery. Charge it to a true 100%. This will mean turning the phone off and on a few times while it's on the charger to make sure it's actually at 100%. Then completely discharge it until the phone cannot turn back on. Do this a couple times in a row, and repeat every month or so. This conditions your li-ion battery's internal charging memory so it knows its true charge potential.
- Charge your phone while it's off. It won't drain nearly as much battery this way, so when you're ready to take it off the charger it'll be much fresher.
- Avoid prolonged charging and continuous charging, because it can confuse the li-ion's internal charging memory. Rather than re-charging it when it hits 60%, let it drain as low as possible before you bother recharging it. Bursts of short charges don't harm the battery, but they make it "forget" how much it can be charged.
Click to expand...
Click to collapse
What he said
http://forum.xda-developers.com/showthread.php?t=894880
Thanks for all the info! I'm just gonna try SBC for a month then try non SBC for a month and see witch I would prefer better. Also for the Zen kernels do they break anything that's not already working? And would they give better 3d performance then the tiamats kernel?
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chvezsd said:
Thanks for all the info! I'm just gonna try SBC for a month then try non SBC for a month and see witch I would prefer better. Also for the Zen kernels do they break anything that's not already working? And would they give better 3d performance then the tiamats kernel?
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Click to expand...
Click to collapse
That's a great plan man. I visited the savage zen kernel thread earlier and some are complaing about their newest build causing charging issues or something along with 100% wake time idk. If you give it a shot use their 1.0.0 instead of the 1.0.1. Just give the kernels about a week and see how well they hold up. Its mainly about personal preference(sbc or non sbc) I'm actually testing the tiamat sbc but I was previously on savage zen. I like to give all kernels a chance(1 or 2 weeks) to see how well my phone performs with them.
Ok well ill just wait till Friday to install a new one then and see how the Zen works out
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Cm7 question

I am running the final cm7 rom and I am wondering if the kernel that comes with it is an sbc? Reason I ask is I am using a 3500 battery and only getting 4-6 hrs use and based on other posts it wont fully charge without sbc. If it is not an sbc any suggestions on a play nice sbc kernel?
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Its not sbc, but the Tiamat kernel is nice.
Also charge your battery up to 100%, clear battery stats, then let it died completely, and charge back up to 100%.
derekfaircloth said:
I am running the final cm7 rom and I am wondering if the kernel that comes with it is an sbc? Reason I ask is I am using a 3500 battery and only getting 4-6 hrs use and based on other posts it wont fully charge without sbc. If it is not an sbc any suggestions on a play nice sbc kernel?
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Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=917755
i have always had the latest of what they offer and have never been let down!
ive combined this kernel (with sbc) with cm7 and various themes and have always been easily able to (overnight) charge my phone and go all day with moderate usage (3500mah from ebay)
happy charging
btw, make sure you wipe battery stats, charge all the way up, discharge till it shuts down on its own and then give it 2 days for the kernel to (settle in)

CM7 Battery

Hello I just flashed my phone to CM7 and it's so smooth, but I was wondering if I could get the.most our of my battery by using a different kernel. That allows everything to work. please help.
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oehwarieme said:
Hello I just flashed my phone to CM7 and it's so smooth, but I was wondering if I could get the.most our of my battery by using a different kernel. That allows everything to work. please help.
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Click to expand...
Click to collapse
Tiamat kernel plays nice.
It can also be undervolted additionally.
Right now I'm running CM7 Stable, and I use the Savage Zen kernel (no SBC). I get pretty decent battery life out of it by using SetCPU and setting it to 245 min/max when the screen is off and around 245-1000~ when it's on; this allows me to get great performance while still maintaining decent battery.
savaged zen 2.0.0. my phone's been through 2 nights. played quite a few games. checked facebook a bunch. used flashlight a few times. email, xda, calls. 1 day 11 hours and still like 10 percent left. runnign on savaged zen governer. that's pretty damn good.
then again, i did fall asleep wiht it on and not charging twice. at least we know it sleeps well...
played with the SZ governor for a little bit the other day, and found it pretty nice.
ended up switching back to tiamat and smartass though.
also currently testing and trying out SBC just to see how it behaves. easily noticing that extra percentage of battery that gets pushed to charge due to the trickle charge vs a non-SBC kernal.
I'm visitng here from the Samsung Captivate forum. I flashed CM7 to my girlfriend's EVO last night and she is experiencing horrid battery life. I turned off the "back up to google" options in the privacy menu that is said to be starting Android system every time the dialer is used, which is said to use up excessive battery power.
I'm about to flash tiamat's latest kernel. I'll report back on how it goes.
I flashed back to CM7 the other day. I was having issues, so i completely reformattetd everything. Went back to stock, unrooted, re-roooted, and flashed cm7. I'm getting great battery life with CM7 + the tiamat kernel.
As of right now: 25 hours, 19 minutes of uptime with 68% of my battery life remaining.
ETA: This is using the 3500mah seido extended battery.
My girlfriend is getting much improved battery life with tiamats 3.3.7 kernel
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i'm on Kings Unleashed GBR3 NEON-CM7 using tiamat 3.3.7 sbc kernel and i love it! i am getting almost 35hrs on one charge!

[Q] SBC kernels

Are SBC kernels really that dangerous? Theres some horror stories floating around about batteries that have nearly exploded and smoke literally coming out of the battery because the trickle charge causes the battery to overcharge, which apparently Li-ion batteries dont take very well to.
Has anyone on here had any problems? I usually charge my phone over night and its fairly close to my head, so i would prefer to not wake up to a loud pop and 3rd degreee chemical burns. But at the same time SBC kernels definitely give me more battery life, at least 10%. my phone stays between 100%-90% for a while rather than dropping right away.
I also have an extra battery, so im not too worried about the battery just losing its ability to accept a charge. I just dont want it to blow up in my face.
I haven't had any problems using it. As far as I know it was all just rumor and no proof or pics of it actually happening.
phatmanxxl said:
I haven't had any problems using it. As far as I know it was all just rumor and no proof or pics of it actually happening.
Click to expand...
Click to collapse
I did see one pic, which is why i believe it to some extent. The inside of the guys case looked like the battery had been letting off quite a bit of smoke. If trickle charge had absolutely no negative effect on the battery, im sure HTC would have implemented it in the first place. I dont think exploding should be a frequent problem, at least with htc batteries, because the battery itself has a small chip that should play a part in regulating charge. Maybe 3rd party batteries have something different that allow them to accept too much charge.
When the SBC kernels were first being discussed a few months back, there were several reports of battery exploding/catching on fire among other things, but I haven't read or heard anything of that nature in quite awhile and there have been quite a few SBC kernels introduced since that time and a lot of people use them.
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They slapped my baby turtles
Myself and a friend with over 6 months of use and no issues to report. Both stock and cheap $10 extended batteries have been used.
Never had an issue using SBC kernal. My wife and I both use Netarches SBC kernal.
Have been using net's 4.1.9.1 sbc more havs since it came out....no problems great battery life...used it on myn's 2.2......warm z and finally on Koni's elite roms...which I have stayed with since they were introduced.....if you haven't tried Koni's....you probably should.....it is by far the best rom out there.....please see for yourself......you won't be disappointed.
Sent from ELITE SERIES 3 EVO SUPERSONIC!
I was nervous at first too about this whole SBC thing, then I decided to go for it and I haven't gone back. My battery is usually cooler then with a nonsbc and I get easily an extra hour of use with them.
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Im using tiamat 3.3.8 sbc kernel and haven't had issues for three months. I kept a close eye on vitals with the battery monitor widget. Highest mV was 4219 and highest temp was 51 C (59 C in a hot car). No sign of smoking, plating, or degradation in performance.
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Only thing I can say is that sbc will wear your battery down quicker in time due to it over charging lol but hell there only 10 bucks on ebay so what you have to lose lol.
It was like 8 evos out of like millions but since then there hasn't been much if any problems
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Is it "more dangerous"? Probably. But to date I think there were 7 or 8 people with battery issues. I personally haven't had any SBC issues across many roms/kernels.
Those 8 people, or however many, had those problems in the earliest days of SBC development, for one thing.
Also, can those problems really be attributed to the SBC kernel? Or were they coincidentally just all using SBC.
It's like the white screen of Death. It started wit ha few perople on CM7, and the rumor was CM was frying their phones.....
Til it happened on every other setup, too.
anyone know if the sbc mod works while the phone is off
It does not, sbc only works when the phone is at 100% and on, all other times its using the stock charge setup

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