Develop Bugs

3500 mah battery not holding charge

Can some one help i will like to know why the extended battery is not holding its charge. When i unplug the ac charger the % drops likes 10% in matter of like 10 min with the phone off and i have auto task killer

I would recommend trying an SBC kernel. I don't know what ROM you are running, but something like SBC HTC #15 would work well. That battery needs to stay on the charger past the time it actually reads 100%. More information about your whole setup would be helpful when diagnosing issues.

The rom i am using is Xxbabiboi228xX manila carbonfiber v 2.4

In my opinion don't use Sbc. There is a thread on here about the advantages and disadvantages. I have a 3500 extended battery and I just either use stock #15 kernel or toast... there is a reason why it drops down 10%. It's normal and your battery was made that way. It's a way where your phone won't over charge. Search the thread about Sbc kernels. Hope this helps.
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So wich sbc kenels do you guys recommand for my rom

I find I get about 3 hours at 100% after removing from the charger.
Today after 5 hours I was at 95%. I know that the 3500mAh battery has internal protection, http://forum.xda-developers.com/showthread.php?t=906144 which keeps it from being over charged. Though that is no reason to fully charge it. http://forum.xda-developers.com/showthread.php?t=913401
The reason to fully charge it, is that the volt meter reads 100% not 110%.
Oh yeah I use the #winning #tiger blooded SBC15. lmao - Sorry CS

is it a seido 3500mah? could also be a quality issue.

Naw is one from ebay
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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 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 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 Kernel

I was just wondering does the stock kernel in CM7 allow tickle charging. I don't want this because of damage to the battery.
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Smurph82 said:
I was just wondering does the stock kernel in CM7 allow tickle charging. I don't want this because of damage to the battery.
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Click to expand...
Click to collapse
no it does not.
for what its worth, ive ben running an SBC kernel(trickle charge) for 3 months and no smoke yet

knightwolf123 said:
no it does not.
for what its worth, ive ben running an SBC kernel(trickle charge) for 3 months and no smoke yet
Click to expand...
Click to collapse
Accidently clicked "THANKS" when I meant to click "QUOTE" so your welcome But I've been using SBC kernel since they first arrived on the scene and no smoke here either. I personally recommend them since they help prevent the drop in charge.

Smurph82 said:
I was just wondering does the stock kernel in CM7 allow tickle charging. I don't want this because of damage to the battery.
Click to expand...
Click to collapse
Tickle charging?

lol,ive done that befor. hit the wrong button that is
besides, ebay sells extended battery 3500mah for about ten bucks. sbc probably wont damage phone just battery and that has never happened with the technology in todays kernels.
savaged zen gives you better battery life from smarter usage and the not having ten percent drop in the morning is nice too

bkrodgers said:
Tickle charging?
Click to expand...
Click to collapse
Yes when the phone reaches 100% it begins to drain to ~85% then recharges to 100% but with trickle charge the phone will reach 100% and drop voltage to maintain 100% so when you unplug your phone you get a guaranteed 100% charge.
EDIT: HERE is a link to the Savaged zen sbc kernels knightwolf123 mentioned.
EDIT AGAIN: If your are concerned with battery life then I'd go with THIS kernel. It's the CFS kernel. Nandroid backup and try it out.

blakeboys said:
Yes when the phone reaches 100% it begins to drain to ~85% then recharges to 100% but with trickle charge the phone will reach 100% and drop voltage to maintain 100% so when you unplug your phone you get a guaranteed 100% charge.
EDIT: HERE is a link to the Savaged zen sbc kernels knightwolf123 mentioned.
EDIT AGAIN: If your are concerned with battery life then I'd go with THIS kernel. It's the CFS kernel. Nandroid backup and try it out.
Click to expand...
Click to collapse
You totally missed what I was doing there...
I know what a trickle charge is.

[q] sbc kernel for synergy???

Are we ever going to get an SBC Kernel for Synergy?? I am not liking not charging my 3500 battery up fully. I used to get 2 full days out of a charge, now I am down to about 20 hours with RLS1 and regular charge mode.
Thanks.

It's in the works. Maybe within the month since the source code was barely released not to long ago. Try recalibrating the battery for your EVO that way you get a pretty neat charge. Closest to SBC as you will get
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