Battery stays at 100% for too long

[Retired Cat]

I think the reason the battery stays at 100% so long is that when charging, the meter goes to 100% when the battery is actually at 95% or so.

Battery charges very slowly at the end trickle phase. I suspect Apple has it display 100% so that people don't go crazy waiting 15-30 minutes for that final 5% of charging capacity.

 

[Savor]

My iPad 2 does the same thing. I fully charge it to 100%. I play a near 30 minute episode of The Joy of Painting video at 360p because listening to Bob Ross keeps me relaxed. My iPad still says 100%. I don't trust its usage rating either. I don't do music playing at all and my video app says beyond the SOT I used which is lying to me. App usage will say 1 hr. I check it a few hours and it adds 20 min and this is with the device on idle. One of the reasons why I like Android is my SOT is monitored accurately using different apps like Du Battery.

Expect that NOT all battery meter measure it accurately. Some of my phones would dip faster once it reaches 30%. And not all phones discharge at the same rate which includes having the same exact model. Even if the battery came from the same exact factory, they won't all function exactly the same way. I own phones that discharges very slowly that first 10% or last 10% but can dip a little faster under 50%. And each day I use a phone won't always give me 8-10 hr SOT. It simply depends what I plan to do with each one that day. If I stream, download videos, or play games, expect 5-7 hrs.

Just enjoy using the phone, buy multiple ones so you have another freshly charged one to use, get a power bank, turn off the %, and stop worrying. Not all batteries or battery meters are created equal.

 

[HEK]

My iPad 2 does the same thing. I fully charge it to 100%. I play a near 30 minute episode of The Joy of Painting video at 360p because listening to Bob Ross keeps me relaxed. My iPad still says 100%. I don't trust its usage rating either. I don't do music playing at all and my video app says beyond the SOT I used which is lying to me. App usage will say 1 hr. I check it a few hours and it adds 20 min and this is with the device on idle. One of the reasons why I like Android is my SOT is monitored accurately using different apps like Du Battery.

Expect that NOT all battery meter measure it accurately. Some of my phones would dip faster once it reaches 30%. And not all phones discharge at the same rate which includes having the same exact model. Even if the battery came from the same exact factory, they won't all function exactly the same way. I own phones that discharges very slowly that first 10% or last 10% but can dip a little faster under 50%. And each day I use a phone won't always give me 8-10 hr SOT. It simply depends what I plan to do with each one that day. If I stream, download videos, or play games, expect 5-7 hrs.

Just enjoy using the phone, buy multiple ones so you have another freshly charged one to use, get a power bank, turn off the %, and stop worrying. Not all batteries or battery meters are created equal.

The ambient temperature of the battery will alter the charge / discharge rate of the battery by quite a bit. The same battery from the same phone will act differently with a ten degree temperature fluctuation. Batteries work using chemical reactions. Chemical reactions are highly sensitive to temperature. If you are not measuring the battery temperature between any two sets of trials you know next to nothing about those tests and can draw zero conclusions or make future predictions. And by measuring temperature I don't mean how it feels in your hand.