3 ms·

Which is why you swap the battery - be careful of those nasty small plastic clips when you open the thing - after which it'll happily chug along for another 3 y

Which is why you swap the battery - be careful of those nasty small plastic clips when you open the thing - after which it'll happily chug along for another 3 years. BTW, I'm using a number of 8 year old phones, with 8 year old batteries which still keep enough charge for about 2-3 days. A typical lithium-ion battery in typical operating conditions (i.e. body temperature, cycling between 20-40% and 100% charge) can generally be charged about 500 times (full charge cycles) before its capacity significantly decreases (i.e. <80%, [1], for a more in-depth study of the topic see [2]). [1] https://batteryuniversity.com/index.php/learn/article/bu_808b_what_causes_li_ion_to_die https://batteryuniversity.com/index.php/learn/article/bu_808... [2] https://sci-hub.tw/10.1016/s0378-7753(01)00783-2 https://sci-hub.tw/10.1016/s0378-7753(01)00783-2

tjoff 8y ago
For me battery life in phones used heavily seems to typically loose 50% in two years and then rapidly become unusable. Which kind of sucks if they can barely last one day when they are brand new. Fakes are of course much worse, and getting original parts when you can't officially replace the battery can be very challenging. Yes, I still have a Nexus 5 I bought on launch day. Yes I've replaced the battery twice. Yes the battery is a fake knockoff. Battery life is still miserable, but since I only use wifi on I save lots of power that way which makes it usable for my use case.
- lorenzhs 8y ago
  Are you discharging the battery to very low levels regularly? That wreaks havoc on capacity. My two year old iPhone still reports 90% of its maximum capacity, but I can count the number of times I let it go below 20% on the fingers of my hands.
  - tjoff 8y ago
    I'd say that 10% is very common, sometimes 20%, somtimes less than 10. But to combat this my previous phone was a moto z with a battery-mod that kept it at 80%. But the constant charging/discharging was probably too much for it. After 20 months the battery was beyond useless without the battery-mod. And I only did the above to be able to prolong the life of the phone, yet it lasted much shorter than any previous phone I've had.
  - leetcrew 8y ago
    you also have to consider the climate that the user lives in. one can be very diligent about discharge levels, but if you spend a lot of time outside in the heat, you are subjecting the battery to worst case operating conditions a lot.

tjoff 8y ago

For me battery life in phones used heavily seems to typically loose 50% in two years and then rapidly become unusable. Which kind of sucks if they can barely last one day when they are brand new. Fakes are of course much worse, and getting original parts when you can't officially replace the battery can be very challenging. Yes, I still have a Nexus 5 I bought on launch day. Yes I've replaced the battery twice. Yes the battery is a fake knockoff. Battery life is still miserable, but since I only use wifi on I save lots of power that way which makes it usable for my use case.

lorenzhs 8y ago
Are you discharging the battery to very low levels regularly? That wreaks havoc on capacity. My two year old iPhone still reports 90% of its maximum capacity, but I can count the number of times I let it go below 20% on the fingers of my hands.
- tjoff 8y ago
  I'd say that 10% is very common, sometimes 20%, somtimes less than 10. But to combat this my previous phone was a moto z with a battery-mod that kept it at 80%. But the constant charging/discharging was probably too much for it. After 20 months the battery was beyond useless without the battery-mod. And I only did the above to be able to prolong the life of the phone, yet it lasted much shorter than any previous phone I've had.
- leetcrew 8y ago
  you also have to consider the climate that the user lives in. one can be very diligent about discharge levels, but if you spend a lot of time outside in the heat, you are subjecting the battery to worst case operating conditions a lot.