25-05-2020 02:47 PM in
I bought a new Samsung Note 9 and it is supposed to have 4000mah battery. Using the app accubattery it consistently shows me a battery health of 91-91% since the beginning! Is this normal? I cannot get it over that value. Because I paid for a new phone but appartently I got an old battery? May I return this phone now? I have been charging always 20%-80% and have it recorded, so I treated the battery according to all scientific standard practices.
Thank you in advance.
25-05-2020 08:52 PM in
No app can establish real phone capacity.
It is an estimation and accuracy is not high. You can still request a verification in a samsung center but if i were you i would just ingore accubattery estimated percentage if battery life is good.
27-05-2020 10:58 AM in
Sure it might not be high but other users report that they have 95 or even 97%. Can you explain that to me?
And how does Samsung do the measurement then? Because I need a measurement which is objective and non biased.
27-05-2020 11:08 AM in
They still cannot get a perfect measurement.
Batteries also degrade from being at ambient temp and degrade less but still degrade at 0 C.
That is the explanation. If you go for a replacement you may get a more degraded battery
27-05-2020 11:12 AM in
Thank you for you answer.
I am actually very interested in technology so I know that they degrade and how to treat them. Where I live it doesnt reach 0 degrees and we are just now starting the summer so I don't think 5 months of moderate battery usage (I dont do games) would hurt it so much.
27-05-2020 11:13 AM in
Yep. I meant that if the phone has been conserved at ambient temp for the 1 or 2 years before you bought it a lower than new battery capacity is to be expected.
Hopefully the end of the development of graphene will change all of this!