Battery Capacity and App Monitoring Question - Google Pixel 2 Questions & Answers

I'm hoping some with battery monitoring app can shed some light on this. I get decent battery life, comparatively to what I'm reading on forums. In CPU-Z my battery is rated as "GOOD" which I'm assuming/hoping is the highest rating as my phone is only 1.5 months old. Out of curiosity I decided to try the AccuBattery app. The first test charge of 7% (my phone was at 93%), above the AccuBattery minimum of 5%, said that my estimated battery capacity was only 2450 mAh. It was correctly reporting the design capacity of 2700 mAh. I'm going to let the battery discharge more this time and try again... 9% wear seems impossible. Thoughts...including is there a recommended app that gives reliable battery wear/capacity data? 2-year old Dell laptop still only reports 2% wear.
It may be the software, including needing several charges to provide accurate data. (maybe). I just did a charge from 75% to 100% on a HTC One M8 with 2600 mAh battery and the results were almost the same (2400 mAh estimated true capacity).

Related

Largest battery that stick fits under the stock back cover

Are there any larger batteries that will still fit in the stock back. I want an "extended battery", but am not willing to sacrifice my Active X case to get one.
For all intents and purposes, no. There is a 1600 mAh that sells for some ridiculous price like 60 dollars or something, but anyone who spends that much for a 100 mAh bumb at BEST is moronic. Also, Stock batteries typically have an extremely high real life mAh, usually 95-98% of rated mAh. Any aftermarket will not have as high of a percentage, so a 1600 will probably be just barely better than stock.
muyoso said:
For all intents and purposes, no. There is a 1600 mAh that sells for some ridiculous price like 60 dollars or something, but anyone who spends that much for a 100 mAh bumb at BEST is moronic. Also, Stock batteries typically have an extremely high real life mAh, usually 95-98% of rated mAh. Any aftermarket will not have as high of a percentage, so a 1600 will probably be just barely better than stock.
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This is not true the 1600 battery is a seidio and seidio batteries are pretty well known for being higher quality than stock. Tag on some extra charge on top of that and it will probably be quite noticable. A couple years ago when I had a touch pro 2 I bought a seidio battery that had 250 mAH more than stock and in real life usage I almost got double the time out of it. I changed from charging every night to every other night.
That is absolutely based on no truth. Seido is ABSOLUTELY not better than stock. In fact, NOTHING beats stock batteries.
batteryboss.org
No Seido battery has better than an 84% real life mAH to rated mAH. Stock batteries have at MINIMUM 95% real life mAH to rated mAH.
84% of 1600 = 1344 mAH
95% of 1500 = 1425 mAH
I think I am just going to hook a car battery up to it..........it will be months before I have to recharge
mikeschevelle said:
I think I am just going to hook a car battery up to it..........it will be months before I have to recharge
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Just get Shorai Battery, much lighter and easier to carry around.
SS
muyoso, do you have the research from the site to back up those numbers? I'm not about to go digging for it myself...
There are a variety of factors that reduce a lithium ion battery's performance. First of all, lithium batteries have a higher internal resistance than their nickel metal-hydride and nickel cadmium counterparts (counterparts in the sense of their use in cell phones over the years). This is one reason why they heat up quite a bit during both charge and discharge, and consequently "age" faster when existing in a warm environment.
Lithium batteries self-discharge at around 8% per month, and during this time typically suffer a permanent capacity loss when left unused. Batteries that were produced and stored in a warm place for too long will certainly not charge to as high of a capacity as another identical battery that was produced and began earlier discharge cycles in a real-world environment.
Lithium batteries do not have a "memory," which is the effect that nickel cadmium batteries are reputable for carrying over the course of many charge/discharge cycles. In other words, your battery isn't going to suffer because you never let it run dead before charging it all the way back up. It doesn't matter. However, leaving it on a charger with Wi-Fi, Bluetooth, and a high-definition porno on simultaneously will only negatively effect the battery due to the heat generated from current delivery.
Some batteries are simply better than others. This holds true even among batteries of the same brand, capacity and application. The way they are handled, stored and used determines the life and performance of the battery in your phone. In this case, do not drain your battery to 0% before charging it back up. It's typical for lithium batteries' capacity to permanently drop by 15-25% within one year's use.
If you have a spare cell, charge it to about 40%, take it out and put in the refrigerator. Also, make sure you check the manufacturing date on the packaging, as I said before, storing for long periods without a 40% charge or regular charge/discharge cycles will result in a lessened capacity.
Just figured I would throw a few facts out there. I began using lithium batteries for robotics projects a number of years ago when they became much more prevalent.
The guy behind batteryboss.org did extensive testing. Stock batteries were all rated at near rated capacity. Seido batteries were not. He clearly explains his testing procedures. I have read over that site pretty thoroughly and trust his numbers and technique.

Check the mAh of a recieved battery?

Is there any way to check the mAh of a battery you just recieved. I ordered a 3500mah one off ebay and just want to make sure that it is the same mah as stated. Is there a program or some way I can check this?
Thanks
Typically you'll need a device, or some system to discharge the battery at a constant current, and then measure the time it takes to meet its final voltage, and you need to watch it to make sure you don't kill the battery. Plus the life also depends on the discharge rate so you may get more than 3.5Ah out of it if you discharge it longer with a low current then visa versa.
Also typically batteries you buy on ebay don't normally meet the rated life.
garbz said:
Typically you'll need a device, or some system to discharge the battery at a constant current, and then measure the time it takes to meet its final voltage, and you need to watch it to make sure you don't kill the battery. Plus the life also depends on the discharge rate so you may get more than 3.5Ah out of it if you discharge it longer with a low current then visa versa.
Also typically batteries you buy on ebay don't normally meet the rated life.
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I just bought a 3500mah battery from ebay. Its only gone through 1 full discharge but assuming my Samsung battery is 1500mAh I'd estimate the ebay one to be about 2200-2300mAh.. hopefully it will increase after a few cylces and calibration
I bought that battery, and it's definitely not that good, Idk if I got a bad one, but my phone only last about hmm the same as the stock battery.. I wish I could check the mah

Battery capacity

So i have the battery monitor widget app, and it shows that calibrated capacity is around 2600 mAh, so this means the battery has degraded, right?
I have been searching for original batteries, but on AliExp**** there seem to be only batteries from around 2014, and some people say the battery swells after use etc., so i'm hesitant to buy from there. Any other sites maybe?
the test is not so accurate.
i would stick to this battery untill you feel the battery life is horrable.
you can but a new battery for about 17$.

New battery health

I’m curious about battery health as reported by Accubattery (I can’t find the battery health stat in the phone itself). I’ve had the 4a 5-6 days and the health is at 97% (3048/3140). Is that normal?
I had some issues with battery drain at first, getting around 4.5 hours (a few people here pointed out it’s likely due to it not being on wifi). But I did a factory reset and it seems to be doing better (now I’m on track for ~6).
I‘ve read battery health numbers aren’t super accurate so I imagine some fluctuation is normal. Just trying to verify whether I’ve lost 3% battery life in a week. Thanks!
I bought it a month ago. Holds at 104% for 3 weeks, and recently dropped sharply to 99%. I think you shouldn't believe the program
Li's like being use in their mid range; short midrange cycles/more frequent partial charges.
High cell voltage and high temperatures cause premature wear. Accubattery is encouraging this partial charge strategy although it's not necessary accurate.
Don't charge your battery to 100% very often.
80% is better, 64-70% is best.
Don't discharge past 20%, a low limit of 30-40% is best.
Never charge if battery is below 40F.
Avoid starting a charge if battery is below 72F whenever possible.
Low temp charging can cause Li plating which will permanently degrade the cell.
Avoid charging over 100F.
75-90F is best
Fast charging causes no harm.
cool thanks. accubattery went from 97% to 98% a few days later so I don't think it's super accurate. I've never had it say 100% on this new battery though so I'm worried it's a bit low but oh well. Thanks all.
suda space said:
cool thanks. accubattery went from 97% to 98% a few days later so I don't think it's super accurate. I've never had it say 100% on this new battery though so I'm worried it's a bit low but oh well. Thanks all.
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First you need to set whatever is the actual capacity of the battery. Accubattery will use the capacity that the Android is reporting, typically 4170 for a 4300 ma battery in the Note 10+ case.
It's wrong; but Android is the culprit in this case.
Accubattery is a very useful apk. It adjustable alert when charged to X% is great. It also logs net power charging/discharging. I use it for battery temp too.
People expect too much out of it.
I doubt it's low, in fact it may well have a slightly higher than rated capacity. Take care of it and you can milk years out of it. Frequent midrange charges, and watch the heat.
If the phone battery temp when using gets into the high 90's, cool it down. I use a damp microfiber cloth or rag.
At a battery temp of 102F I screen off the device.
blackhawk said:
Li's like being use in their mid range; short midrange cycles/more frequent partial charges.
High cell voltage and high temperatures cause premature wear. Accubattery is encouraging this partial charge strategy although it's not necessary accurate.
Don't charge your battery to 100% very often.
80% is better, 64-70% is best.
Don't discharge past 20%, a low limit of 30-40% is best.
Never charge if battery is below 40F.
Avoid starting a charge if battery is below 72F whenever possible.
Low temp charging can cause Li plating which will permanently degrade the cell.
Avoid charging over 100F.
75-90F is best
Fast charging causes no harm.
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Info is misleading, outdated (overlooks recent battery refinements) and originally based on much larger packs used in laptops, etc. Mobile devices discharge frequently, rarely spending significant time at high charge levels. Laptops are often tethered to a desk and charger for extended periods.
While there's nothing amiss with avoiding extremes one should not feel compelled to carry around a damp microfiber cloth (lol) to cool the phone when it reaches body temp. Yep, battery capacity may drop 10% over the life of the device by not getting panties in a knot over thermals. It's just a phone ...
DB126 said:
Info is misleading, outdated (overlooks recent battery refinements) and originally based on much larger packs used in laptops, etc. Mobile devices discharge frequently, rarely spending significant time at high charge levels. Laptops are often tethered to a desk and charger for extended periods.
While there's nothing amiss with avoiding extremes one should not feel compelled to carry around a damp microfiber cloth (lol) to cool the phone when it reaches body temp. Yep, battery capacity may drop 10% over the life of the device by not getting panties in a knot over thermals. It's just a phone ...
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This has nothing to do with laptops although on my e6400 you can software disable battery charging at will.
The Li battery weakness is it's user. Any time it's taken to a full charge you are doing substantially more damage than a 64% top off. One full charge cycle vs >1/20% a full charge cycle.
That's a lot of lost life.
You'll get about 2 years out of it or less with your plan if you're a heavy user.
Rather inept management when you could get years more...
blackhawk said:
This has nothing to do with laptops although on my e6400 you can software disable battery charging at will.
The Li battery weakness is it's user. Any time it's taken to a full charge you are doing substantially more damage than a 64% top off. One full charge cycle vs >1/20% a full charge cycle.
That's a lot of lost life.
You'll get about 2 years out of it or less with your plan if you're a heavy user.
Rather inept management when you could get years more...
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We'll agree to disagree on the applicability and merits of aggressive battery management on modern mobile devices. I am quite familiar with the arguments but have no stomach to rehash the details (which matter). Best wishes, mate.
DB126 said:
We'll agree to disagree on the applicability and merits of aggressive battery management on modern mobile devices. I am quite familiar with the arguments but have no stomach to rehash the details (which matter). Best wishes, mate.
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Fair enough... the devil is in the details.
I'll see how my 10+ does. Lol I may end up tearing it down to replace the bloody charging port before the battery needs replacement
A battery replacement isn't the end of the world.
Cheers, mate.
Hi
I bought my phone 4 weeks ago . I am currently using Realme 8 pro.
In accubattery it shows i have 89% battery health. Is accubattery accurate?
It makes me concern why my battery sustaining so fast .
blackhawk said:
Fair enough... the devil is in the details.
I'll see how my 10+ does. Lol I may end up tearing it down to replace the bloody charging port before the battery needs replacement
A battery replacement isn't the end of the world.
Cheers, mate.
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Hi
I bought my phone 4 weeks ago . I am currently using Realme 8 pro.
In accubattery it shows i have 89% battery health. Is accubattery accurate?
It makes me concern why my battery sustaining so fast .
Mi Nabil said:
Hi
I bought my phone 4 weeks ago . I am currently using Realme 8 pro.
In accubattery it shows i have 89% battery health. Is accubattery accurate?
It makes me concern why my battery sustaining so fast .
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Click to collapse
Not really. The value it uses is from the Android OS its self which is inaccurate and constant.
In my case it is 4100 mAh.
On my original 4300 mAh battery it was off by 200 mAh, on the replacement 300. Assuming the battery was as speced. It could have even been over the speced value.
Depending on the battery temperature and the charge range Accubatter's estimate can vary by 200 even 300 mAh.
Set it so it will read 100% by entering the value Accubattery thinks it sees when the battery is fully charged. It makes it easier and less dissettling to track
In the course of the battery's life you'll probably end up reloading and losing the data but for short term monitoring it's very useful.
It's logging history is great for quickly spotting excessive battery usage or slow charging. With those considerations in mind it's a useful tool that doesn't consume very battery it's self.
After the Pro version is active I firewall* block it as it is constantly in internet contact otherwise... I don't need that. If you disable Playstore or Google play Services it will revert back to the free version unless firewall blocked I disable the former two most of the time so there's that.
That's my biggest complaint about it.
*Karma Firewall, a great freeware apk that uses almost no battery
Sir in my case it showed accurate capacity of my battery.
When charged my phone first my phone had 99% battery health.
But 4 weeks later it says something 89 percent.
I don't know about battery science. But can you tell me in short is it okay? . Or i should go to coutomer care?
Mi Nabil said:
Sir in my case it showed accurate capacity of my battery.
When charged my phone first my phone had 99% battery health.
But 4 weeks later it says something 89 percent.
I don't know about battery science. But can you tell me in short is it okay? . Or i should go to coutomer care?
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Really I doubt they would accept Accubattery's data.
When your SOT drops significantly and it's not because of excessive battery usage by apk(s), then you know you have a problem.
Heavily used phones will get about 1-2 years of usable battery life. I'll probably replace mine again at the 1 year mark.
If you want it to last longer only charge to 80-90%
Don't discharge below 30%
Li's like frequently midrange charge/discharge cycles. Frequent midrange partial charges prolong their life a lot.
Never charge if below 40°F
Do not charge below 72°F, 85-95F is the optimum start charge temperature.
Do not allow battery temperature to exceed 100F when charging, cool as needed.
blackhawk said:
Really I doubt they would accept Accubattery's data.
When your SOT drops significantly and it's not because of excessive battery usage by apk(s), then you know you have a problem.
Heavily used phones will get about 1-2 years of usable battery life. I'll probably replace mine again at the 1 year mark.
If you want it to last longer only charge to 80-90%
Don't discharge below 30%
Li's like frequently midrange charge/discharge cycles. Frequent midrange partial charges prolong their life a lot.
Never charge if below 40°F
Do not charge below 72°F, 85-95F is the optimum start charge temperature.
Do not allow battery temperature to exceed 100F when charging, cool as needed.
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Click to collapse
One more question sir.
What is better for battery health charging 20 to 100% once or charging 20 to 80% twice in a day.
blackhawk said:
Really I doubt they would accept Accubattery's data.
When your SOT drops significantly and it's not because of excessive battery usage by apk(s), then you know you have a problem.
Heavily used phones will get about 1-2 years of usable battery life. I'll probably replace mine again at the 1 year mark.
If you want it to last longer only charge to 80-90%
Don't discharge below 30%
Li's like frequently midrange charge/discharge cycles. Frequent midrange partial charges prolong their life a lot.
Never charge if below 40°F
Do not charge below 72°F, 85-95F is the optimum start charge temperature.
Do not allow battery temperature to exceed 100F when charging, cool as needed.
Click to expand...
Click to collapse
Sir can you please answer my last question?
That i have qutioned you in previous reply

General Unusual battery wear stats post Jun update

Ok - this is a weird one for my S22u SD so I'd appreciate some feedback. I use AccuBattery Pro to monitor my battery and pre-Jun update (AVF1) after every recharge cycle to 85% (protect battery option is enabled) AccuBattery would show estimated capacity between 4861-5015mAh. Except for one recharge cycle, I used the same recharger but estimated capacity was still very consistent after each session. Samsung advertises 4855mAh average actual capacity for the S22u's 5000mAh battery so all is good with my S22u so far.
I updated my S22u on 6/23 and after that the estimated capacity has been between 4394-4536mAh after each recharge! I noticed this immediately and started using a mixture of different rechargers (including Samsung rechargers) and they were all consistently lower. A couple of days ago I turned off the protect battery option and started to recharge to 100%. Still, the estimated capacity after each recharge was consistently ~500mAh lower than before the June update.
There has been no "event" whereas my S22u has overheated charging or not charging or anything else unusual that has happened other than the June uppdate. So why is my battery 500mAh lower in battery capacity (about 10%)?
Still scratching my head, today while recharging my phone I had a notification that my battery was 100% charged and I was only at 88% and still charging!! The notification was from the Android 12 system UI. The phone recharged to 100% successfully. Somethings not right!
I've attached my stats below for the 10 days prior and 10 days after the June update as per my Accubattery Pro. I would appreciate it if you have Accubattery to look into the history tab and check your estimated battery capacity for a few days before and after the June update to compare mine to. You can get to the capacity estimate via the History tab, scroll to a recharging session, touch that session which will take you to the Charging tab and then scroll down to the bottom of that screen.
Not sure if this is an issue with just my phone or it is a general issue.
PS - I have not experienced any loss of SOT to justify the 10% additional battery wear.
Accubattery is cr*p for battery capacity stats, just ignore and uninstall the app and enjoy your phone. If you are paranoid, install Device Info and you may get a better capacity reading. For me it says 4800 typical. All batteries are bound to degrade after over a year or so, but not so soon.

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