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Your Opinion on "Conditioning" Batteries |
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#26 |
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Forum Member
Join Date: Sep 2003
Location: Sandy Heath, Beds. UK
Posts: 10,377
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Quote:
There is plenty of scientific real data around.
Charge to 60 or 65% and you are guaranteed 2000+++ full charge cycles. And those super fast charges only charge to about 60% for the very reason that fast charging above 60% totally destroys the battery ! But the good news is that if you leave your charger on overnight, you still likely get about 300 charges total, assuming your battery was A1 to begin with and has never been ultra fast charged. If you could improve battery life by only charging to 60% then phone manufacturers would allow you to charge to 60%! |
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#27 |
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Join Date: Mar 2001
Location: North West
Posts: 4,883
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Quote:
But the good news is that if you leave your charger on overnight, you still likely get about 300 charges total, assuming your battery was A1 to begin with and has never been ultra fast charged.
However its no secret Apple puts (comparative to their iPads) a crap lithium based battery in their iPhones. According to Apple an iPad would have to go through 1000 full discharge cycles before it would reduce to about 80% capacity. Also this fast charge, Qualcomm have patented the tech behind it, as I understand the faster charging doesn't have any dentrimental effect on the battery. I believe its more to do with the charger itself, it puts out a strength of around 2.5A ( I think?), the battery is then able to receive and use more of the energy compared to that of a standard 500mAh wall plus. If you use the rapid charger on another device that isn't fast charge capable it will reduce the current to the standard 500mAh. I don't for a second think Qualcomm and its partners would sell such a thing if it had any detrimental effect on the battery. The phones which support the "2.0 Fast Charge" are usually Qualcomm 801 and above based phones. Quote:
Only if the charge controller prevents the battery from damage by running it too low. If you didn't charge it and ran to down to empty and didn't use it for a while it would probably damage the battery. One thing you never want to happen is for the battery to go outside of it's comfort levels as it causes damage.
Every mobile phone has built in cut offs to ensure user safety but also lengthing battery life. An iPhone or iPad will start discharging when it is charged to capacity, allowing the current to flow, I think it gets to about 95% or so and then starts charging again. Other phones like those with "Quick Charge 2.0" the device charges a lot slower at it gets to capacity. If we were talking batteries of old I would be inclined to support your point (whatever it was?). But we aren't, I don't argue that lithium batteries need short regular bursts of charging, however running it to capacity and then charging again a few hours later has barely a noticeable impact on the life cycle. There used to be this school of thought that in order to ensure a long lifecycle one should only charge the battery to about 80%, however that turned out to be cods wallop as charging it to "capacity" and then using has no negative impact in the longrun. Granted letting lithium run down everyday will impact its lifecycle, but charging it to "capacity" and leaving it on is unlikely to impact shelf life again. You will find most phones and even laptops have built in protection to ensure that a battery stops taking in a current and over charging. They don't need software to do that either, if you took a lithium based battery apart you would see whats inside and what ensures that it doesn't suffer from overcharging. There is a new technology in testing now that will apparently revolutionise how long takes to charge and also how long it can run. Thought samsung isn't expected to unveil this till later in the year (I think Qualcomm has involvement in this as well). |
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#28 |
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Join Date: Aug 2014
Location: United Kingdom
Posts: 2,875
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Lithium-ion batteries do not need calibrating - they do not calibrate.
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#29 |
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Join Date: Mar 2009
Posts: 14,541
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Lithium-ion batteries do not need calibrating - they do not calibrate.
I didn't see anyone suggest Li-Ion batteries needed calibrating unless I missed it. If they did say that, they were very silly. |
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#30 |
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Join Date: Mar 2001
Location: North West
Posts: 4,883
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Lithium-ion batteries do not need calibrating - they do not calibrate.
Its no so much the battery that needs it, its the OS recognising it properly. Sometimes a full discharge is necessary to ensure that the power level is read correctly. |
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#31 |
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Join Date: Aug 2014
Location: United Kingdom
Posts: 2,875
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If you notice I put that in speech marks?
Its no so much the battery that needs it, its the OS recognising it properly. Sometimes a full discharge is necessary to ensure that the power level is read correctly. You are indeed correct about the OS. |
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#32 |
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Join Date: Oct 2003
Location: the wild world web
Posts: 28,132
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...If you could improve battery life by only charging to 60% then phone manufacturers would allow you to charge to 60%!
![]() Resistance goes up and debris forms past 60%, more so the faster you charge. Even a 2A or 1A charge will likely switch to 0.5A at 60 or 65% to stem some of the damage done. BTW I forgot about calibration. If the calculated battery percentage is wrong you will get too dangerous a charge if the BMS does not know it is past 60%. This could also be part of what leads to runaway battery overheating/exploding. |
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#33 |
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Join Date: Oct 2003
Location: the wild world web
Posts: 28,132
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....However its no secret Apple puts (comparative to their iPads) a crap lithium based battery in their iPhones..............................I don't for a second think Qualcomm and its partners would sell such a thing if it had any detrimental effect on the battery. .....
If Qualcomm do not say it, it is best not to make it up. Funnily enough, that repeat seller of the alkaline battery, Durcell, claims 300 charges for its NiMh ones. Panasonic, very very big into electric vehicle batteries claim 2100 charges for their consumer NiMh. Now tell me, why do Durcaell only offer 15% the lifespan of a Panasonic one? |
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