Powering my TB off an on uses a LOT of battery

[MojaveHigh]

I generally power my TB off and on once a day, especially after adding and playing with a bunch of new apps and also after removing ones I don't want anymore, which both tend to put a lot of extra idle drain on my battery.

Anyhow, powering the phone off and on uses almost 10% of my battery. It's not a big deal, I usually start charging it right after. But I wonder if this is usual? Does starting the phone really take that much battery?

 

[lovy]

I generally power my TB off and on once a day, especially after adding and playing with a bunch of new apps and also after removing ones I don't want anymore, which both tend to put a lot of extra idle drain on my battery.

Anyhow, powering the phone off and on uses almost 10% of my battery. It's not a big deal, I usually start charging it right after. But I wonder if this is usual? Does starting the phone really take that much battery?

I was told that the TB is very powerful and yes it's not unusual for it to drop from 100 to 95% after a full charge because it takes that much resources to load up. Chime in AC family if I did not explain this correctly

 

[VideoEngineerAJS]

I was told that the TB is very powerful and yes it's not unusual for it to drop from 100 to 95% after a full charge because it takes that much resources to load up. Chime in AC family if I did not explain this correctly

Yes I usually notice a 5% drop or so if it's fully charged and I power down and then power back up.

 

[Forgetful]

Normal, part of it is the bolt is a current hog, the other is the battery isn't perfect at displaying how much it really has left.

 

[rcpa]

Actually, I don't think rebooting is really using an abnormal amount of power. I believe the battery meter just thinks it did. I don't think the battery meter is as accurate as you would all like it to be. Batteries are not like a measuring cup where you can just look at the water level and say "Ah ha! I've got 3/4 of a cup."

I'm pretty sure that the battery meter is more of a guess than an accurate reading. It uses some kind of algorithm to estimate the battery level and I believe that when you reboot, you clear out some piece of information it was using to calculate the battery level and it had to make a new guess.

Anecdotal evidence of this behavior is that one time when I rebooted the battery level dropped from 70% to 65%. It then stayed at 65% for over an hour even though I was playing podcasts and occasionally browsing.

 

[MojaveHigh]

^ I think you might be right.

After the huge drop from 50% to 41%, my battery stayed at 41% for almost an hour. That tells me that the battery really didn't drop 9% but that the indicator thinks it did.

 

[anon(258826)]

Whenever I restart my phone (as opposed to powering off and back on), the battery meter drops even more. Yesterday, for instance, it went from 43% to 21% in a single restart cycle. It had been at 43% for at least an hour, and was at 21% for a couple of hours afterward.

 

[XStroX]

I can attest to this as well. I've restarted my phone many times around 50% and when the phone comes back on, the battery indicator is yellow and it is under 30%. However, it seems to hover at this new percent for hours. Very strange.

 

[nate44]

How often do you guys bump charge? Oh and powering off/on the phone will drain more battery, then a simple reboot obviously

 

[jamdmyers]

Phone Harware initialization (plus internal selftests) will draw a bit of power, I've seen this on Every phone I owned (bb/andoid etc). The question isn't how much it uses but why is one rebooting so often, I turn my phone off / restart maybe once every two weeks.

 

[rcpa]

Rebooting (or restarting) the phone is not using massive amounts of power. It's just that the battery meter that thinks so. Battery level meters are not accurate, they are just an estimate. The phone can't count the electrons and tell you accurately how much is left.

When you reboot the phone, you disturb whatever algorithm it uses to estimate the battery level. It makes a new, inaccurate guess. That's all that's going on.

That's why the battery level stays at the new, inaccurate value, for an hour or more after rebooting.

 

[scassel]

Phone Harware initialization (plus internal selftests) will draw a bit of power, I've seen this on Every phone I owned (bb/andoid etc). The question isn't how much it uses but why is one rebooting so often, I turn my phone off / restart maybe once every two weeks.

I just flashed back to my BB days when a reboot was necessary almost daily

 

[anon(258826)]

I usually turn my phone off and plug it in when I go to bed, then turn it on and charge it another few percent while I get ready in the morning. Perhaps once or twice a week, I may restart my phone if it seems to have trouble keeping a solid data connection. That's when I notice the major drop.