Database Users

i think i have an ideea with our battery

our sgs think our battery its empty at 3,7v or 3,68.
if we could change the limit for the battery is considered empty, somewhere in the 3.1 to 3 V, thinking how much could keep a battery, the phone started.
if the battery is not empty exaggerated, I believe it can be used without problems.
Sony Ericsson uses batteries to 3.2 somewhere if I remember well.
I dont know how I could do something like that, that's why I posted here this idea.
from here http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
"Power loss through Protection Circuit
Besides common aging, a Li-ion battery can also fail because of undercharge. This occurs if a Li-ion pack is stored in a discharged condition. Self-discharge gradually lowers the voltage of the already discharged battery and the protection circuit cuts off between 2.20 and 2.90V/cell. Some chargers and battery analyzers (including those from Cadex) provide a wake-up feature, or “boost,” to re-energize and recharge these seemingly dead Li-ion batteries."

If v can do the cut off to 3.5v we.will gain roughly 35% more life. But ib think it will take 5hrs for a full change
Sent from my GT-I9000 using XDA App

Its a lipo battery that is the saftey cutoff point...same as RC cars...going to low will kill your battery...
Sent from my GT-I9000 using XDA Premium App

not too low
not to low, low enoug to have long battery life.
for charge dont matter 2,5 ore to 4. i dont think wil be 5

good idea....do it°!

I'm ready to test it, but how we can change limitation of battery ?
Explain your idea.

Yes, could you explain more ? Do you know how to do it ?

I have few ideas on battery issue too:
1)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
2) real rocket for your galaxy:

Great idea but a moot one at the same time I'm afraid. No one knows more abt batteries than Koreans. They live for them. If this limit could have been set lower it would be lower. Also I have never heard of battery firmware being flashable through a phone.
Sent from my GT-I9000 using XDA App

.
schiphol said:
Great idea but a moot one at the same time I'm afraid. No one knows more abt batteries than Koreans. They live for them. If this limit could have been set lower it would be lower. Also I have never heard of battery firmware being flashable through a phone.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
sony ericsson use this trick to have longer battery life, anyway we dont use a battery 2 years.
i dont now how to implement this trick.

I have the battery monitor app and in stock XXJVK, at 01% the battery is between 3.4 and 3.5 volts.
Fully charged is 4.18 volts or thereabouts but this falls fairly quickly to 4.0 volts which is where the battery stats need to be accurate to show true percentage and not just jump down to 80%.
Fully charged for me takes about 3 hours but I charge all my batteries (three using a separate charger and not in the phone itself.

markdj57 said:
I have the battery monitor app and in stock XXJVK, at 01% the battery is between 3.4 and 3.5 volts.
Click to expand...
Click to collapse
+1.
Swyped from another GALAXY

xenos126 said:
If v can do the cut off to 3.5v we.will gain roughly 35% more life. But ib think it will take 5hrs for a full change
Click to expand...
Click to collapse
It's not linear. It falls rapidly at lower voltage. You would gain about 5% I think...

next time
i have a multimeter, next time i verify de power of my battery.(i am surre it not 3.4-3.5v)

darckreign1984 said:
i have a multimeter, next time i verify de power of my battery.(i am surre it not 3.4-3.5v)
Click to expand...
Click to collapse
Just use the battery monitor app...
But feel free to use a multimeter if you want.
Sent from my GT-I9000 using XDA App

markdj57 said:
Just use the battery monitor app...
But feel free to use a multimeter if you want.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
battery monitor indicate 3.680v

Battery voltage when fully charged

Hey guys,
can you post what voltage you have, when you fully charged your sgs2?
my value is 4,145V i'm just curious if thats the value i should have when fully charged, or if i should calibrate my battery (i switched some roms)
thx

I've got 4125-4135mV

ive got 4215mV hehe, healthy battery

blickmanic said:
ive got 4215mV hehe, healthy battery
Click to expand...
Click to collapse
Dang, you've got one helluva great battery! Mine at most is 4198mV.

coolfire said:
Dang, you've got one helluva great battery! Mine at most is 4198mV.
Click to expand...
Click to collapse
i take good care of my batterys power cycles every time

coolfire said:
Dang, you've got one helluva great battery! Mine at most is 4198mV.
Click to expand...
Click to collapse
The same at my cell.
Sent from my GT-I9100 using XDA Premium App

last time i calibrated the battery i reached 4,205 , that is my personal record. But this value is not very significative because it depens from the corrent usage of the phone. Screen on + cpu running a little bit can decrease voltade showed by 0,1 volt. And i also noticed that the charging process is strange. I assembled a little photovoltaic power station and i know the charging process of lead acid batteries. Because they are composed by 6 elements connected in series, at the end of the charging process the charger need to provide for a short time a voltage 1 volt higher than the normal to equalize the cells. The behavior of the Galaxy s2 charger is similar. The top voltage is reached for a few minues then it decrease to a float level. Very strange thing because the battery is a SINGLE cell and don't need the equalization charge like lead acid batteries.
Probably i just have to study much and play less with my galaxy

simax said:
Hey guys,
can you post what voltage you have, when you fully charged your sgs2?
my value is 4,145V i'm just curious if thats the value i should have when fully charged, or if i should calibrate my battery (i switched some roms)
thx
Click to expand...
Click to collapse
Roughly the same.

this time i have 2,204V right after reaching 100%
i guess it varies a lil' more than on my hd2 (i had always the same value there)
EDIT:
obviously i mean 4,204V haha

4,152 V most of the time. Didn't notice it go higher than that on my phone

blickmanic said:
i take good care of my batterys power cycles every time
Click to expand...
Click to collapse
Please tell me how often you do the power cycle and how?
Thanks in advance

i power cycle every time, charge it full overnight, use it for two days, then charge it overnight again
rinse and repeat

mine was just at 4195
i left it on charge for about 30mins after it beeped to say it was full and just callobrated it as i have been flashing loads of stuff all day

After three calibrates, I get a max of 4.200v and a min of 3.451v
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

Mine is 4195 mV..

Mine exactly 4.2V (4200mV)

Mine 4201mV. This is the time to press the "calibrate battery" button. Right at the top.

Tinderbox (UK) said:
After three calibrates, I get a max of 4.200v and a min of 3.451v
Click to expand...
Click to collapse
what app is that?
mines highest is now 4200 exactly
like the look of that app though

Modify stock battery of a phone for extra mAh by add one or more batteries

Hi all hardware mod experts/hobbyists.
As we are all moderate to heavy phone users, we need a phone with a good battery life that won't die before evening. However, everyone seems stick to a hone that could work with screen on less than 6hrs, even 3000mah won't help much.
Now, I want to add 1 or 2 more batteries connect in parallel to my current stock batteries. I hope it would multiply the juice, however I would concern about Charging Voltage, safety charging current from Charging IC inside the phone, and Charging Duration. Of cause, adding extra battery will make your phone Fat, ugly and heavy but we have better battery life.
battery type : norminal voltage of Li-ion 3.6v or 3.7v, Li-Po 3.8v and some other battery even mention 3.9v or 4.0v .
Full charge :4.2v.
Charge voltage 4.2v
Current : depend on the phone
duration = capacity / current
Please upload your modified phone by add extra batteries, with your usage experience.

i found this for iPod Touch 6th Gen. He modified by soldered another battery on the back for tripple battery life

I think it is better to use a power bank, safe, easy,maybe not convenient

wangyf5039 said:
I think it is better to use a power bank, safe, easy,maybe not convenient
Click to expand...
Click to collapse
Yep.... It is better to use power bank.... To embed 2 or more batteries may give better time but looks too odd...
???

I'd recommend to if you're gonna add another battery do it with another of the same type because phone Power Manangment IC could have troubles trying to read two or three, if wanted, different batteries, in some cases they have different data read pins(the ones that are not positive and negatives)
Sent from my XT1058 using XDA Free mobile app

If connecting batteries, they should be same voltage and amperage. To get longer run times at the same voltage you connect both positive together, and both negatives together. If they are the same, lets say 3000 mah, then you while get 6000mah. Approximately twice the run time. If one battery is 1500mah, and the other is 3000mah, then you will only get 3000mah when they are connected. They will both only charge to 1500mah, or the lower amperage. If you connect the batteries from one positive to the other negative, on a 3.2 volt battery, then you will double the voltage to 6.4volts and blow out circuits on your device. Personally, I carry solar charged battery packs. I also have an AGM battery for a lawnmower that is 300amps, which will charge my phone for weeks. Any questions feel free to ask. I was a yacht mechanic, so I had to install and fix DC and AC portable power systems.

You better try some software optimization to get a better battery life,like a custom ROM & kernel, root your device,a good app for battery & performance boost which personaly use is called greenfy and it realy improves the battery life by hibernating apps,anyway 3000 mAh should be enough for most phones and better you lose your warranty rooting it,not trying to burn your phone's circuits with other batteries

Hi ! got 5000mah battery installed on my OP3, but it still says OP_3000mah.. How to modify this? Does this need to be rooted? Thanks!

Hi,
I recently did this to a Samsung Galaxy A3 2016 that I had multiple units of. One had a good screen and a battery, but the board was dead. The other one had a dead LCD and no battery. I turned them into one.
All you need to do is make sure that the voltage of the batteries is about the same, and then just solder the + of the first one to the + of the second one and the - of the first one to the - of the second one. Make sure to solder it to the pins beyond the battery controller, so that the second battery doesn't overheat or expand. Then just insert/solder the whole thing into the phone. DON'T use cells without a charge controller.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
This is what I did with the housing afterwards. I screwed 2 separate frames together, which allowed me to house the second battery with no problem. No glue was used and this is very solid.
The pictures are old, I later put a camera lens on it and a new back. I also got a separate NFC antenna, which I stuck on the top battery since the original antenna is on the bottom one.
I hope this helps.

And as for the battery capacity being displayed in the phone, I'm sure most applications such as AccuBattery or Ampere just display the capacity according to the model of the phone. I know that phones CAN measure the voltage of the battery (or batteries in our case), but I'm not entirely sure about phones being able to measure the capacity of the battery on their own. I know my modded phone displays 2300mAh despite the actual capacity being around 4400mAh after the mod.

My Nexus 6p charging slowly according to the ampere app,its showing less current.help

Please help
Want to knw is it the app defect or my phn defect?
With my stock nexus 6p charger it showed me max current of 1500mah whats wrng?
The day i bought the device it showed me 2950mah.

A couple questions regarding your issue:
Is this the charger that came with the phone, USB Type-C on both ends?
What was your battery percentage when this measurement was taken?
What were you doing on the phone at the time of the measurement?
I assume from your post that question one is a yes. I ask question two because as your battery gets close to full (and in the case of most lithium battery charging) the amperage will lower to finish topping it off. Question three is important because I believe the Ampere app shows the net total amperage flow. Meaning that (a mA in) - (b mA being used) = (c mA total flow). So if you have brightness to max, music playing, etc. then the total mA flow will be lower.

BillyTheRatKing said:
A couple questions regarding your issue:
Is this the charger that came with the phone, USB Type-C on both ends?
What was your battery percentage when this measurement was taken?
What were you doing on the phone at the time of the measurement?
I assume from your post that question one is a yes. I ask question two because as your battery gets close to full (and in the case of most lithium battery charging) the amperage will lower to finish topping it off. Question three is important because I believe the Ampere app shows the net total amperage flow. Meaning that (a mA in) - (b mA being used) = (c mA total flow). So if you have brightness to max, music playing, etc. then the total mA flow will be lower.
Click to expand...
Click to collapse
Yeah am using the same charger usb c to usb
And i checked it on all percentages it ws same it never exceeded 1500 and sometimes it showed me 600 also
I was not doing anything at that time
Just charging my phone what should i do now?

Hmm... I've gotten weird readings from Ampere sometimes. Give the Current Monitor app a try perhaps.

same issue and haven't found any solutions so far
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

taiguy said:
same issue and haven't found any solutions so far
Click to expand...
Click to collapse
Could be the charger being defective, hard to say. Or the USB C port. Check if there is lint build up in the port.

TnT_ said:
Could be the charger being defective, hard to say. Or the USB C port. Check if there is lint build up in the port.
Click to expand...
Click to collapse
It's ****ing weird. Never had these sort of issues using the QuickCharge 2.0/3.0 and micro-B connectors.
I cleaned out the port with isopropyl alcohol and compressed air. I've got some 3rd party chargers that register as "charging rapidly" but have yet to see current even close to 3A. Using the same cables, the OEM charger is still stuck on just "charging".
I can't seem to really push past 1.3A regardless of battery state, charger used, or cable.

By comparison, this is what it looks like with 3A charging. The bulk charge rate is near 80% per hour.

Low Battery Capacity (2734 mah) despite 3000mah claim . How ?

My battery backup was low on 1.5 years old G5plus and donot care as i used to play PUBGM . But after uninstalling the PUBGM and without heavy use i am still getting low battery backup . So i got curious started investigating . What i got to know is my battery capacity is 2734mah while i know my g5 plus had 3000mah . I cross checked from different apps and all apps show 2734mah . Can anyone explain how is this possible ? Thanks in advance

shibbu18111997 said:
My battery backup was low on 1.5 years old G5plus and donot care as i used to play PUBGM . But after uninstalling the PUBGM and without heavy use i am still getting low battery backup . So i got curious started investigating . What i got to know is my battery capacity is 2734mah while i know my g5 plus had 3000mah . I cross checked from different apps and all apps show 2734mah . Can anyone explain how is this possible ? Thanks in advance
Click to expand...
Click to collapse
Batteries lose capacity over time. It's just a fact of life.

theistus said:
Batteries lose capacity over time. It's just a fact of life.
Click to expand...
Click to collapse
But my other device Mi pad 1 2.5 years old that has big 6700mah still got 6700mah after 2.5 years of daily 3hrs of use . I think battery degradation is related to turbo charge and recharge cycle.

shibbu18111997 said:
But my other device Mi pad 1 2.5 years old that has big 6700mah still got 6700mah after 2.5 years of daily 3hrs of use . I think battery degradation is related to turbo charge and recharge cycle.
Click to expand...
Click to collapse
I guarantee you your Mi pad battery has lost some capacity. It's a matter of chemistry. You simply cannot keep repeating the chemical reaction a lithium battery undergoes without it eventually degrading over time.
Certain things can hastenb this process, such as letting your battery drain out to much, or keeping it fully charged all the time, it improperly storing it (temperature or charge level), or temperature extremes.
And yes, quick charging by delivering lots of amps to a battery will shorten it's life, but with modern batteries designed for quick charging, the difference is actually miniscule, perhaps even negligible. It's far more likely for one of the other things above, or just a plain manufacturing defect, will have a far greater impact than quick charging.
https://www.businessinsider.com/phone-battery-degradation-science-lithium-battery-time-2016-11

shibbu18111997 said:
My battery backup was low on 1.5 years old G5plus and donot care as i used to play PUBGM . But after uninstalling the PUBGM and without heavy use i am still getting low battery backup . So i got curious started investigating . What i got to know is my battery capacity is 2734mah while i know my g5 plus had 3000mah . I cross checked from different apps and all apps show 2734mah . Can anyone explain how is this possible ? Thanks in advance
Click to expand...
Click to collapse
My device is almost 2 years old it's showing 3000mah for me.

2 year old Moto G Plus, always used the supplied fast charger and heavy gaming.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sent from my Moto G (5) Plus using Tapatalk

riggerman0421 said:
2 year old Moto G Plus, always used the supplied fast charger and heavy gaming.View attachment 4679764
Sent from my Moto G (5) Plus using Tapatalk
Click to expand...
Click to collapse
Thanks for reply bro . Now i am confused , i think my battery has degraded and need to be replaced

shibbu18111997 said:
Thanks for reply bro . Now i am confused , i think my battery has degraded and need to be replaced
Click to expand...
Click to collapse
The app is giving wrong information as you can see in picture. How the battery capacity is 3035 as the battery only 3000mah.how it could be possible???