4 ms·

The problem isn't capacity. It's voltage. Old batteries are sometimes no longer able to provide adequate voltage at peak loads, leading to phones turning off wh

The problem isn't capacity. It's voltage. Old batteries are sometimes no longer able to provide adequate voltage at peak loads, leading to phones turning off when running on low battery (but before it's actually empty enough for it to turn off in normal circumstances). Until now I've assumed that this generally affects all li-ion batteries over time, but I'm honestly not sure why this issue hasn't cropped up in the Android camp in the same way. Maybe the only reason it became such a big deal was how Apple decided to fix the problem (silently throttling performance).

jdietrich 8y ago
>The problem isn't capacity. It's voltage. It's not voltage, it's discharge rate, which is directly proportional to capacity. All else being equal, bigger batteries can supply more current. It hasn't cropped up in the Android camp because Android phones use bigger batteries. https://batteryuniversity.com/learn/article/what_is_the_c_rate https://batteryuniversity.com/learn/article/what_is_the_c_ra...
- Scoundreller 8y ago
  What about physics? A colder battery will have a slower chemical reaction and may not be able to supply enough current to avoid a crash without throttling.
  - jdietrich 8y ago
    A phone should be able to operate reliably within it's thermal specifications. It's perfectly reasonable for a phone to occasionally throttle because it's unusually hot or cold, but it's exceedingly shoddy for throttling to be routinely used to mitigate an under-specified battery.
- jhayward 8y ago
  > It hasn't cropped up in the Android camp Samsung was fined for exactly the same thing Apple was doing. https://www.businessinsider.com/apple-samsung-5-million-fine-phone-slowdown-2018-10 https://www.businessinsider.com/apple-samsung-5-million-fine...
  - jdietrich 8y ago
    According to The Register, Samsung were fined because they pushed Android Marshmallow to the Note 4, not because of any sort of battery-related throttling. https://www.theregister.co.uk/2018/10/24/apple_samsung_fined/ https://www.theregister.co.uk/2018/10/24/apple_samsung_fined...
- deleted 8y ago
  [deleted]

jdietrich 8y ago

>The problem isn't capacity. It's voltage. It's not voltage, it's discharge rate, which is directly proportional to capacity. All else being equal, bigger batteries can supply more current. It hasn't cropped up in the Android camp because Android phones use bigger batteries. https://batteryuniversity.com/learn/article/what_is_the_c_rate https://batteryuniversity.com/learn/article/what_is_the_c_ra...

Scoundreller 8y ago
What about physics? A colder battery will have a slower chemical reaction and may not be able to supply enough current to avoid a crash without throttling.
- jdietrich 8y ago
  A phone should be able to operate reliably within it's thermal specifications. It's perfectly reasonable for a phone to occasionally throttle because it's unusually hot or cold, but it's exceedingly shoddy for throttling to be routinely used to mitigate an under-specified battery.
jhayward 8y ago
> It hasn't cropped up in the Android camp Samsung was fined for exactly the same thing Apple was doing. https://www.businessinsider.com/apple-samsung-5-million-fine-phone-slowdown-2018-10 https://www.businessinsider.com/apple-samsung-5-million-fine...
- jdietrich 8y ago
  According to The Register, Samsung were fined because they pushed Android Marshmallow to the Note 4, not because of any sort of battery-related throttling. https://www.theregister.co.uk/2018/10/24/apple_samsung_fined/ https://www.theregister.co.uk/2018/10/24/apple_samsung_fined...
deleted 8y ago
[deleted]