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Tips Anyone uses Accubattery app?

Discussion in 'Android Apps & Games' started by lvt, Sep 24, 2018.

  1. lvt

    lvt Android Expert
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    I used this app for a while on all my phones including a tablet. It's quite interesting to know that my Asus tablet's battery is still healthy at 99% after 1.5 years while other devices don't have such good battery.
     

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  2. Mikestony

    Mikestony ~30% Carbon Black ±
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    Hmm, looks interesting. Just seems to be an app that reports what the battery is doing etc unlike a battery saver app yes?
     
  3. lvt

    lvt Android Expert
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    Indeed, it does nothing to save your battery, you have to save your own battery by changing your charging habit as suggested by the app :D
     
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  4. Hadron

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    Maybe your particular Asus' battery was above the nominal specification to start with? My previous laptop had a battery that was 8-10% above the nominal capacity when new, which obviously gave it some headroom for wear. Usage also makes a difference, and the pattern might be different for a tablet rather than a phone.

    I judge battery status by performance anyway. According to my apps this laptop has 83% of its nominal capacity, but its battery life is certainly more than 17% less than it used to be (though it's not doing so badly considering that it's 5 years old).

    And yeah, I've played with that app. It gives a nice overview of usage, and its foreground usage results seem plausible to me. Its weakness is that it tells you nothing much about background app usage, though that's not a significant drain on my phone anyway.
     
    #4 Hadron, Sep 25, 2018
    Last edited: Sep 25, 2018
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  5. Olivaava

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    Hmmm sounds good....;)
     
  6. lvt

    lvt Android Expert
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    All modern phones have batteries that pack more power than the "official" claim.

    The Asus is not the only device with good battery. My 2 yo Lenovo K3 Note has a 95% healthy battery too.

    I noticed that the healthy batteries are all Li-on while the less healthy was a Li-po (HTC 10 Bolt).

    Was it a coincidence?
     
  7. Hadron

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    I've no evidence that my phone had a higher capacity than claimed, but didn't use this app when it was new (my current laptop was pretty accurately on spec, which was a disappointment after its predecessor ;)).

    It probably was a coincidence. You cannot really infer anything from a sample of 1, especially with all of the other variables in play here. The first Li-Po powered phone I had maintained its battery life over time much better than its Li-ion powered successor, but that's just as anecdotal. The battery chemistries are a lot more similar than the marketing names suggest, so I doubt there is any very significant difference overall.
     
  8. lvt

    lvt Android Expert
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    I first noticed it with my Lenovo K3 Note thanks to a charging cable with status light, the phone (already shutdown) continues to suck power for a while (20 min or so) after the battery shows 100% and phone's charging light changed to green.
     
  9. lvt

    lvt Android Expert
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    I post the last 10 rows of stats for those who don't use Accubattery so that you could have an idea about charging cycles

    78% to 92% (+14%) equals 0.32 cycle.
    67% to 81% (+14%) equals 0.15cycle.
    85% to 95% (+7%) equals 0.20cycle.
    79% to 85% (+6%) equals 0.10cycle.
    55% to 79% (+24%) equals 0.15cycle.
    79% to 92% (+13%) equals 0.31cycle.
    94% to 93% (+2%) equals 0.07cycle.
    81% to 96% (+15%) equals 0.43cycle.
    68% to 88% (+20%) equals 0.29cycle.
    57% to 76% (+19%) equals 0.11cycle.
     
  10. lvt

    lvt Android Expert
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    The interesting rows are

    (1) 55% to 79% (+24%) equals 0.15cycle.
    (2) 68% to 88% (+20%) equals 0.29cycle.

    In the (1) case you add +24% power to the battery and it counts as 0.15cycle.
    In the (2) case you add +20% power to the battery and it counts as 0.29cycle.

    Still pulling my hair to understand the math used here.

    Anyway it seems that you are likely to save more charging cycles if you stay below 80% battery level.
     
  11. lvt

    lvt Android Expert
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    Yesterday I tested a charging session from 19% to 82% battery (+63%), losing only 0.24 charging cycle.

    So maybe the best combination is to charge the battery from 20% to 80%, about 1 hour on a Quickcharge 2.0 charger.
     
  12. Hadron

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    It's based on their model of battery wear, where going too high or too low counts as more wear.

    I can't be bothered with that stuff. Avoiding running it too low is one thing, but sitting watching the charge level to pull it when it reaches 80, and then have to be topping up during the day, forget it - I'm not going to run my life around a modest effect on battery longevity. My last phone lasted 5 years without any of that, and that's probably longer than I'll use this one (as I expect 5G networks to be available within that timescale).
     
  13. lvt

    lvt Android Expert
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    Haha I see what you mean.

    I don't care that much either as I get at least a new phone every year or so, but I'm naturally interested in stuffs like this one.

    Actually the app has a built-in alarm that goes off when the battery reaches the percentage set by you (say 80%), I hope that they could add a feature to automatically stop the charging session in the future. But it won't be easy as user-created apps have no way to tell the power management chip when to stop.
     
  14. Hadron

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    And an alarm going off an hour after I go to bed would change my relationship status pretty quickly...
     
  15. lvt

    lvt Android Expert
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    You should make it faster :p
     
  16. lvt

    lvt Android Expert
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    Tesla also recommends not to charge the battery over 90% to avoid battery degradation unless you have a real long trip ahead.
     
  17. mikedt

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    When you're trying to charge 6000+ 18650 LiIon cells simultaneously in a series and parallel arrangement, might be that some overcharging and balancing of individual cells is a problem?
    139_tesla-batt2.jpg

    When I charge 18650s for my vape, I always charge them 100%, same with my phones.
     
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  18. lvt

    lvt Android Expert
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    Tesla battery pack has a computer to monitor and control the charging process. I guess that the 90% recommendation is for battery health and better lifespan and it's not danger to charge any battery to 100%.
     
  19. lvt

    lvt Android Expert
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    That batteries cage scaries me to death, it's like you are sitting on a volcano :oops:
     
  20. Hadron

    Hadron  
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    As opposed to having a large tank of volatile organics behind you? That actually has a lot more stored energy, so is potentially more dangerous.

    In fact a tank of gasoline has several times the stored energy of even a large EV battery. However the internal combustion engine is about 1/3 as efficient at turning this into torque, which makes the range difference less than it would otherwise be.
     
  21. lvt

    lvt Android Expert
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    Refueling time is critical for most of people. It takes less than 5 minutes to fill the 50L tank in my car. Charging the car's battery would last hours.
     
  22. Hadron

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    That's something different - doesn't change the fact that a tank of fuel is more dangerous, you are just more used to it.

    (But we need to get rid of internal combustion. This is far more important than convenience, political difficulties or short-term profits. Did you notice that the Trump administration now admit the reality of anthropogenic climate change? Their argument for relaxing vehicle emissions controls was, I kid you not, that we'll have 4 degrees warming by the end of the century and reducing vehicle emissions alone won't stop that so we should do nothing! Of course you can use that argument for any individual measure, and 4 degrees is the projection of what happens if you do nothing across the board. So they've gone from denying the reality to accepting it but saying we should do nothing about it, using an argument logically equivalent to "the first step won't get me out of the way of the oncoming truck by itself so I should just stand here and get run over".

    Off-topic, I know, but speaking as a scientist I get annoyed by organised stupidly on this at the highest levels...)
     
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  23. mikedt

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    I think with electric cars, unless you're planning on a road trip somewhere and are driving locally in the city, you're going to be "refuelling" i.e. charging, it at home rather than at fuelling station, and it's usually there for hours anyway during the night.
     
  24. Unforgiven

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    Let's keep this non political and on topic.
     
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  25. KBU2

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    I know exactly what you're talking about but that ball maybe thrown in a little too high for some to catch lol:D
     

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