Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16
16211 posts

Uber Geek


  #1926616 29-Dec-2017 17:20
Send private message

danza:
tdgeek:

 

I agree, not as I use Apple, I lost the fanboy thing. I want to see what the REAL cause was, maybe we wont know. My 6+ is 3yo now, its normal, well it feels normal. If its a help user/didnt tell them, they need a slap. If its to promote sales, make it headline news. 

 



Wait is there some sort of conspiracy on the REAL cause?

If anything it could just be that since the release of 6/6+, they allowed higher/faster charging current/wattage which is known to degrade batteries faster. While the 5s/5 were capped at 5W charging with a ton of people complaining that "crapple is not letting people charging their phone fast enough."

People have observed the same thing on those cylindrical li-ion cells where faster charging degrades the cell quicker and lower voltage from cells with high cycle count. So these are all pretty well known already.



Basically charge your devices at a lower current (the included 5W charger is pretty good). Keep the battery at a decent room temp and charge as often as you can so you are not cycling the cell that much.

eg. discharging from 100% to 0% = 1 cycle count, discharging from 100% to 80% 5 times with full recharge each is also 1 cycle count.

 

 

 

Apparently discharging all the way down to zero causes extra wear on the battery, so I don't think it is quite as simple as your calculation. Apple have also said in their announcement that the chemicals aging in the batteries can impact on the life. 


16211 posts

Uber Geek


  #1926618 29-Dec-2017 17:31
Send private message

I think apples solutions to this is reeasonable, however this sort of price for batteru reaplcement should be the permanent price to replace a battery. Paying $160, which isn't much less than the  price of a mid range android (eg Nokia 5 on special), IMO is far to high to replace a consumable battery, which only has a 1-2 year life.


 
 
 
 


101 posts

Master Geek


  #1926623 29-Dec-2017 17:44
Send private message

mattwnz:

Apparently discharging all the way down to zero causes extra wear on the battery, so I don't think it is quite as simple as your calculation. Apple have also said in their announcement that the chemicals aging in the batteries can impact on the life. 



Discharging down to 0% for the battery isn't good because each cathode layer in the cell might have a slightly different nominal cell voltage and you might have depleted the electrons on one layer of the cathode while the other layers aren't completely flat.

But this shouldn't be a probably at all since the power controller should be smart enough to auto shutoff before the battery reaches that point, eg the 0% might not actually be full battery depletion.

2024 posts

Uber Geek

Trusted
Subscriber

  #1926624 29-Dec-2017 17:47
Send private message

tdgeek:

 

I'd say that's fairly fast turnaround over a xmas break, even with the threat of class actions and so on. So now we will get a software feature that tells you when the battery is no longer doing well, which should be interesting to observe. I wonder how Android land will respond?

 

What does an Android do when the battery cannot provide the power? Does it just slow down on that occasion?

 

 

I'd like to know too. Google is remarkably silent on this matter - if android was foolproof you'd expect they would have been crowing by now. 

 

It was the bane of my life when I developed XDA all those years ago, when Windows Mobile devices had no persistent store and that once the battery was gone, it would wipe the device. We also suffered from spontaneous shutdown when a high draw operation - like the flash - would suddenly cut the power before "disk operations" could complete, frequently corrupting the device and requiring a reset.

 

Of course things are better now, but even so a declining voltage environment is just terrible, and when the power source becomes unreliable (ie a worn battery) it's just hell. The number of laptops I've had destroyed over the years because of unexpected draw is evidence for me (I once had a toshiba portege R100 destroy the 1.8" HD because the UMTS card drew too much power. I was on a train to leeds...)

 

Batteries... 25 years of development and we are still very little ahead....





________

 

Antonios K

 

Click to see full size


101 posts

Master Geek


  #1926626 29-Dec-2017 18:00
Send private message

It's not that bad, we only got to Li-ion in the last decade or so which is already more than twice as energy dense Ni-MH, which is a bit less than twice as energy dense as lead acid battery.

https://en.wikipedia.org/wiki/Energy_density

Looks like what we really need is a Ham and Cheese Sandwich.

2124 posts

Uber Geek

Trusted

  #1926662 29-Dec-2017 19:44
Send private message

mattwnz:

 

mattwnz:

 

tdgeek:

 

antoniosk:

 

So timeline:

 

[snipped]

 

 

What does an Android do when the battery cannot provide the power? Does it just slow down on that occasion?

 

 

It's a different OS and uses different hardware, and if you look at the benchmarks, iphones can outperform android ones, even though the hardware specs may not look much better, such as less RAM. So I wonder if there is something about apples hardware or ios that is unique with this, that doesn't effect android devices in the same way?

 

 

As this doesn't appear to affect ipads, I wonder if it has anything to do with the actual battery size and capacity itself. Batteries in mobile devices over the last number of years have been getting smaller , but the chips have been making up for that with being more efficient and needing less power, so don't need as large a battery, and I wonder if that is linked to this. The ipad for example has a smaller and lighter battery than the originals, to make it thinner and lighter, but because it is still a larger battery than the iPhone, I wonder if that is the difference.. 

 

Makes me think it's more to do with extra heat that older batteries may produce, in that iPads would be able to dissipate that heat quicker

 

 

 

MadEngineer:

 

I wanted to assume that they've done this due to the extra heat that older batteries generate, hence like most computers nowadays will slow down when getting too hot.

 


20565 posts

Uber Geek

Trusted
Lifetime subscriber

  #1926827 30-Dec-2017 09:00
Send private message

mattwnz:

 

tdgeek:

 

michaelmurfy:

 

Apple issued a press release: https://www.apple.com/iphone-battery-and-performance/

 

See this:

Apple is reducing the price of an out-of-warranty iPhone battery replacement by $50 — from $79 to $29 — for anyone with an iPhone 6 or later whose battery needs to be replaced, starting in late January and available worldwide through December 2018. Details will be provided soon on apple.com.

 

I would think the CGA would likely cover us here in NZ.

 

 

Would that not need to battery to be faulty? Batteries lose life, that's normal. iPhone batteries lose life. 

 

The reduction in replacing a battery is good, as the user may choose to uplift the phone performance by getting a new battery and avoiding Apple's management of older batteries. This isn't a faulty battery issue. Its an issue that Apple now uses to smooth the issues caused by a normal, non faulty, older battery.

 

It appears that they wont remove this, or add a setting, they will just add visibility of it. They should add a setting the enable or disable this IMHO 

 

 

 

 

They won't ever remove a fix to stop it crashing, as a crashing phone isn't a good look.

 

What is interesting is this doesn't apply to the iPhone 5s, which is still a current ios 11 model. Mine has been crashing when the battery has been around 30-40% when it is being used, so I do wonder if they just haven't introduced the fix for it, because if they did, it would probably be too slow to run anything? 

 

This fix they are doing, where they will replace batteries cheaper on iPhone 6 and nerwe, only applies until the end of the year, (eg 2018). IMO it should be the permanent price. Apple have said that the battery is a 'consumable' yet IMO it is impossible to replace it without potentially damaging the phone or voiding the warranty and CGA coverage. Whether they should be sealing in the battery like they do, it just creates so many problems sealing in a consumable into a device with no easy way for an average consumer to replace it. Samsungs note fiasco recall wouldn't have occurred if they hadn't sealed in the battery, as they could have just sent out replacement batteries. The whole point of a 'consumable' and defining something as a consumable, is that it is something that will need replacing, and it should be able to be replaced by the consumer without needing an expensive repair job and being without the phone why it is being done. SO much easier just to pop in a new battery and chuck out the old one. 

 

I do wonder what they will charge for battery replacement in NZ, guessing it will be closer to $50 with the exchange rate, which isn't that cheap. I understand that they also replace the outter housing, which adds to the cost of doing it, so essentially it is not just a battery replacement, its a repair to replace a failed component that wears over time, somewhat similar to an engine wearing out in a car overtime.

 

 

 

Either that or they need to create a battery that will last for the life of the device. If they put in larger batteries, then I imagine that should last longer between charging cycles, so the 500 charging cycles could be spread across 3 + years.

 

 

Partly agree. They should have a battery insert, like a larger sim pullout. But you say faulty again, the battery isn't faulty. At 500 cycles its at 80% capacity, and I assume peak power. Thats normal. Even at that level its an 80% battery, not a faulty battery urbane that last 30 minutes. 

 

Id like to know why apps crash, it should be like a PC that is running at full CPU, slow. When the peak need is over, its back to normal. Especially as unlike a PC, an iPhone is running usually just the front app (with exceptions like Music etc)  It would be far better to manage the power on a real time basis, so the front app stays up, is just slow 


 
 
 
 


20565 posts

Uber Geek

Trusted
Lifetime subscriber

  #1926829 30-Dec-2017 09:05
Send private message

mattwnz:

 

tdgeek:

 

What does an Android do when the battery cannot provide the power? Does it just slow down on that occasion?

 

 

It's a different OS and uses different hardware, and if you look at the benchmarks, iphones can outperform android ones, even though the hardware specs may not look much better, such as less RAM. So I wonder if there is something about apples hardware or ios that is unique with this, that doesn't effect android devices in the same way?

 

 

If Android doesnt crash, if Windows or OSX doesnt crash, it seems a bit bizarre. The reason that iOS performs netter on same or less hardware is that iOS is custom built for that device, Android is generically built to have to cater for varying hardware, so its just more efficient. As I just said, if the phone reaches peak power and the app wants more, that app should just run slower until the peak power need is over. Its 2018, crashing due to not managing the power required on a heavy load? Silly.


20565 posts

Uber Geek

Trusted
Lifetime subscriber

  #1926831 30-Dec-2017 09:09
Send private message

danza:
tdgeek:

 

I agree, not as I use Apple, I lost the fanboy thing. I want to see what the REAL cause was, maybe we wont know. My 6+ is 3yo now, its normal, well it feels normal. If its a help user/didnt tell them, they need a slap. If its to promote sales, make it headline news. 

 



Wait is there some sort of conspiracy on the REAL cause?

If anything it could just be that since the release of 6/6+, they allowed higher/faster charging current/wattage which is known to degrade batteries faster. While the 5s/5 were capped at 5W charging with a ton of people complaining that "crapple is not letting people charging their phone fast enough."

People have observed the same thing on those cylindrical li-ion cells where faster charging degrades the cell quicker and lower voltage from cells with high cycle count. So these are all pretty well known already.



Basically charge your devices at a lower current (the included 5W charger is pretty good). Keep the battery at a decent room temp and charge as often as you can so you are not cycling the cell that much.

eg. discharging from 100% to 0% = 1 cycle count, discharging from 100% to 80% 5 times with full recharge each is also 1 cycle count.

 

My 6+ charger is I am sure, 5W, 500mA. If I charged on my 12W, 2.1mA iPad charger, it will still charge at 5W 500mA, as the device draws what it is supposed to draw, not what the charger can deliver. Its always been like that for Apple, I haven't read where that has changed.  


20565 posts

Uber Geek

Trusted
Lifetime subscriber

  #1926834 30-Dec-2017 09:15
Send private message

mattwnz:

 

I think apples solutions to this is reeasonable, however this sort of price for batteru reaplcement should be the permanent price to replace a battery. Paying $160, which isn't much less than the  price of a mid range android (eg Nokia 5 on special), IMO is far to high to replace a consumable battery, which only has a 1-2 year life.

 

 

1 year life is charging 1.5 times per day.

 

2 year like is charging .75 times per day

 

Thats a lot. My 6+ I dont charge it anywhere near that often, although I dont live on it either.

 

At 2 years for a heavy user and its still 80% is IMHO, fair and reasonable.

 

If Apple made the battery user replaceable, or cheap to get replaced, would that stop sales? I dont feel it would at all. 


20565 posts

Uber Geek

Trusted
Lifetime subscriber

  #1926835 30-Dec-2017 09:17
Send private message

danza:
mattwnz:

 

Apparently discharging all the way down to zero causes extra wear on the battery, so I don't think it is quite as simple as your calculation. Apple have also said in their announcement that the chemicals aging in the batteries can impact on the life. 

 



Discharging down to 0% for the battery isn't good because each cathode layer in the cell might have a slightly different nominal cell voltage and you might have depleted the electrons on one layer of the cathode while the other layers aren't completely flat.

But this shouldn't be a probably at all since the power controller should be smart enough to auto shutoff before the battery reaches that point, eg the 0% might not actually be full battery depletion.

 

They recommend o  a new iPhone, to run it to very low, like 1% then a full 100% charge. Do this 5 times or so, this keeps the battery calibrated,  after that, whenever you like. Yes, dont run it flat.


5944 posts

Uber Geek


  #1926836 30-Dec-2017 09:17
Send private message

tdgeek:

 

My 6+ charger is I am sure, 5W, 500mA. If I charged on my 12W, 2.1mA iPad charger, it will still charge at 5W 500mA, as the device draws what it is supposed to draw, not what the charger can deliver. Its always been like that for Apple, I haven't read where that has changed.  

 

 

5 watts does not equal 500 mA. As USB is 5 volts, a 5 watt charger will be 1 amp. 500 milliamps is 2.5 watts. 12 watts will be 2.1 amps, not milliamps.


568 posts

Ultimate Geek
Inactive user


  #1926851 30-Dec-2017 09:30
Send private message

danza: It's not that bad, we only got to Li-ion in the last decade or so which is already more than twice as energy dense Ni-MH, which is a bit less than twice as energy dense as lead acid battery.

https://en.wikipedia.org/wiki/Energy_density

Looks like what we really need is a Ham and Cheese Sandwich.

 

 

 

Ham & Cheese sandwich Is probably a good 5 years away yet.  


568 posts

Ultimate Geek
Inactive user


  #1926853 30-Dec-2017 09:33
Send private message

So in October next year my iphone 7 will be 2 years old. I guess I should get it's battery replaced then as it will only cost $49... But I wander if apple are reducing the price that their  authorized repair agents charge or is there going to be a different way to get the cheaper replacement done....


20565 posts

Uber Geek

Trusted
Lifetime subscriber

  #1926870 30-Dec-2017 10:19
Send private message

RunningMan:

 

tdgeek:

 

My 6+ charger is I am sure, 5W, 500mA. If I charged on my 12W, 2.1mA iPad charger, it will still charge at 5W 500mA, as the device draws what it is supposed to draw, not what the charger can deliver. Its always been like that for Apple, I haven't read where that has changed.  

 

 

5 watts does not equal 500 mA. As USB is 5 volts, a 5 watt charger will be 1 amp. 500 milliamps is 2.5 watts. 12 watts will be 2.1 amps, not milliamps.

 

 

Ah ok I thought it was 500mA for the 5W, my mistake.  


1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16
View this topic in a long page with up to 500 replies per page Create new topic



Twitter and LinkedIn »



Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

OPPO Find X2 Lite brings flagship features to mid-range 5G smartphone
Posted 29-May-2020 12:52


Sony introduces the digital camera ZV-1 for content creators
Posted 27-May-2020 12:47


Samsung Announces 2020 QLED TV Range
Posted 20-May-2020 16:29


D-Link A/NZ launches AI-Powered body temperature measuring system
Posted 20-May-2020 16:22


NortonLifeLock Online Banking Protection now available for New Zealand banks
Posted 20-May-2020 16:14


SD Express delivers new gigabyte speeds for SD memory cards
Posted 20-May-2020 15:00


D-Link A/NZ launches Nuclias cloud managed network solution hosted in Australia
Posted 11-May-2020 17:53


Logitech introduces new video streaming solution for home studios
Posted 11-May-2020 17:48


Next generation Volvo cars to be powered by Luminar LiDAR technology
Posted 7-May-2020 13:56


D-Link A/NZ launches Wi-Fi Certified EasyMesh system
Posted 7-May-2020 13:51


Spark teams up with Microsoft to bring Xbox All Access to New Zealand
Posted 7-May-2020 13:01


Microsoft plans to establish its first datacenter region in New Zealand
Posted 6-May-2020 11:35


Genesis School-gen has joined forces with Mind Lab Kids
Posted 1-May-2020 12:53


Malwarebytes expands into privacy with fast, frictionless VPN
Posted 30-Apr-2020 16:06


Kordia to donate TV airtime on Channel 200 to community groups
Posted 30-Apr-2020 16:00



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.