Any problem if use the charger with the current lower than the original one of smartphone ?

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Ronron
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Any problem if use the charger with the current lower than the original one of smartphone ?

Hi bros,

I just bought a SamSung S9 and its original charger info is 5v/2A, 9/1.67A.

I had an Energizer charger model ACA1AUSCMC3 (5V/1A).

I want to use SamSung S9 charger for travel purpose only, will I face any problem with my phone if I use Energizer charger (5V/1A) to charge for my SS9 at home ? is there any prob with SS9 battery or with Energizer charger ?

Thank you in advance to have the clear explanation instead of just yes/no answer.

Th558
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Your phone will charge slower. That’s about it.

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It is even better for your battery, it will deteriorate slower than with full pull USB-C 3A

Ronron
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Hi All,
I just want to know any impact to the charger + phone battery life (shorter ? Damage sooner ? …etc) if charge the phone with the lower current charger.
I feel the charger is hotter and may be damaged sooner ?

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Hi Ronron, welcome to BLF.

Please read the answers already given with some attention. @Yokiamy said:
It is even better for your battery, it will deteriorate slower than with full pull USB-C 3A

That means that the weaker Energizer charger is less stressful for the battery (and the phone).
Which is better, and means that the battery of your phone will (probably) live longer.

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Really depends.
I have one charger that couldn’t hit 800ma and I couldn’t charge my Oneplus 5t. It kept turning on off due to charger insufficient current.
I don’t think watching my phone strobe between charge and not charging is healthy

But if it can trickle charge on low current, its way better for your phone than those quick charge that forces your battery to 90% in less than 30 minutes.

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Ronron
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Thank you powr911. I also got that issue before (charger of BB9900 could not charge for my Sony phone) so that I asked bros here

Ronron
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Henk4U2 wrote:
Hi Ronron, welcome to BLF.

Please read the answers already given with some attention. @Yokiamy said:
It is even better for your battery, it will deteriorate slower than with full pull USB-C 3A

That means that the weaker Energizer charger is less stressful for the battery (and the phone).
Which is better, and means that the battery of your phone will (probably) live longer.


Hi Henk4U2,

I found an illogical here: if the phone just accepts 1A or 2a, even the charger can provide 3a, it will take only 1a (or 2a) to charge, how could it make stress for the battery? Im stil not clear for this idea.
Besides, I think if use charger 1a to charge, the charger may be forced to work harder and will get hotter -> broken sooner ?

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Whenever you charge a battery you put stress into it. The faster you charge, i.e. higher currents, means more heat and more stress. The trade off is lower current means longer charging times.

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depends, it may not charge at all, i had that happen, i tried to use my ecig charger 350ma, with a fan that had 1A mini usb charging circuit, it showed as it was charging, but it actually never charged, or it may charge slower, but it won’t damage battery, possibly charger could go, but mine did not.

Ronron
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alpg88 wrote:
depends, it may not charge at all, i had that happen, i tried to use my ecig charger 350ma, with a fan that had 1A mini usb charging circuit, it showed as it was charging, but it actually never charged, or it may charge slower, but it won’t damage battery, possibly charger could go, but mine did not.

I had the same issue with HTC charger model TC K250 (5V/1A), it could not charge for my Sony phone, SamSung Note 5, tablet as well, but still showed the status charging. May be I faced more issue with the phone charger than people so that Im quite serious about this device, it is small, cheap but important when we need it Big Smile

alpg88
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actually i also had same issue with oem iphone charger, and oem cable, from time to time, cables fail, and will not transfer data, a message would pop up, that accessory isn’t genuine, while it indeed is, or it would also show a lightning bolt over the battery, as it was charging, but battery percent would not get any higher, in those cases the issue definitely was with the cable, not the charger, new cable fixed the issue

Ronron
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alpg88 wrote:
actually i also had same issue with oem iphone charger, and oem cable, from time to time, cables fail, and will not transfer data, a message would pop up, that accessory isn’t genuine, while it indeed is, or it would also show a lightning bolt over the battery, as it was charging, but battery percent would not get any higher, in those cases the issue definitely was with the cable, not the charger, new cable fixed the issue

About my case, I tested with some other cables and also face the same prob, so that the cause should be the charger prob.
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I posted a related question months ago, asking if charge termination was built into the charger or the phone.

 

I have a Plantronics 180mA charger that came with a Bluetooth earpiece.  It charges my Moto G3 phone slowly, as would be expected, but likely at a healthier rate than a 1A or 2A charger.  I turn my phone OFF overnight anyway, so an overnight charge is usually sufficient to achieve 90% ~100% charge unless the battery was way down in the <10% range.

 

My concern was (is), if 180mA is insufficient to achieve proper charge termination at 100%? is that a flaw of the phone's charging hardware/software algorithm or, would it be a flaw in the Plantronics charger itself?  Never did find a definitive answer.  The reviews of LiIon cell chargers lead me to conclude thatn termination is a function of the chargers themselves but, that's a different animal.

 

At any rate, if I notice that the phone has achieved >90% but <100% charge, I unplug it then.  The battery is still the original factory battery, more than 5 yrs. old, so the 180mA charging must not be damaging it.

 

An odd thing is, the Plantronics 180mA charger won't charge my wife's Moto E phone that's two generations newer.  It indicates charging, but % capacity never rises.

 

slmjim

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Ronron
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@HKJ: do you have any idea about Slmjim’s question and mine ? Hope you can help to make more details base on your knowleged + exp, thanks.

alpg88
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Ronron wrote:
alpg88 wrote:
actually i also had same issue with oem iphone charger, and oem cable, from time to time, cables fail, and will not transfer data, a message would pop up, that accessory isn’t genuine, while it indeed is, or it would also show a lightning bolt over the battery, as it was charging, but battery percent would not get any higher, in those cases the issue definitely was with the cable, not the charger, new cable fixed the issue
About my case, I tested with some other cables and also face the same prob, so that the cause should be the charger prob.

i only experienced this particular issue with apple devices, i figured i’ll just post in case someone has similar issue, but you are right it has nothing to do with your case

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Ronron wrote:
@HKJ: do you have any idea about Slmjim’s question and mine ? Hope you can help to make more details base on your knowleged + exp, thanks.

The answer is related to the USB coding. Nearly chargers has a coding that says how much current they can deliver (In a few cases this coding is wrong). Phones and tablets usually checks this coding and if they understand it use it as the upper limit for charge current. If they do not they will usually refuse to charge or charge very slowly.

The “if they understand” is sometimes a problem, some chargers are smart and can present multiple different codes and if they phone understand one of them it works. All phones and tablets today are supposed to understand the USB charger or DCP code and charger with about 1A when they find it.

The actual control of charging inclusive termination is done in the phone/tablet and has nothing to do with the USB “charger”, it is just a fairly dumb power source.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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HKJ wrote:

The answer is related to the USB coding. Nearly chargers has a coding that says how much current they can deliver (In a few cases this coding is wrong). Phones and tablets usually checks this coding and if they understand it use it as the upper limit for charge current. If they do not they will usually refuse to charge or charge very slowly.

The “if they understand” is sometimes a problem, some chargers are smart and can present multiple different codes and if they phone understand one of them it works. All phones and tablets today are supposed to understand the USB charger or DCP code and charger with about 1A when they find it.

The actual control of charging inclusive termination is done in the phone/tablet and has nothing to do with the USB “charger”, it is just a fairly dumb power source.

Hi HKJ: Correct me if I’m wrong please : Assume that we use an universal charger to charge a phone , not the original charger of phone, the phone may not “understand” the charger code, they will use DCP for charging (?) :

+ if the original phone use 5V/1A to charge but we use the charger with 5V/2A, it will not make a stress to the phone as the phone will just take 1A only to charge the phone right ? and it will be the same with the phone original charger performance ?

+ If the original phone use 5v/2A but we use the charger 5V/1A , it will provide 1A only to charge the phone and the charger will get hotter (v.s if we use the charger 5v/2A) ? that is not the SLOW charge due to the charger gets hotter and hotter, the output current of charger will not be stable, this issue will make the battery of phone to be issued due to the current charging is not stable ?

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Ronron wrote:
Hi HKJ: Correct me if I’m wrong please : Assume that we use an universal charger to charge a phone , not the original charger of phone, the phone may not “understand” the charger code, they will use DCP for charging (?) : ?

Only if the charger provide a DCP code, some chargers has a Apple 1A code and I doubt most phone will know that code (Apple do not use it any more).

Ronron wrote:
+ if the original phone use 5V/1A to charge but we use the charger with 5V/2A, it will not make a stress to the phone as the phone will just take 1A only to charge the phone right ? and it will be the same with the phone original charger performance ? ?

The phone will take the up to the maximum charge rate it can do, limited by the code it got from the charger. The original charger may not be designed to supplying enough current for full speed charging.

Ronron wrote:
+ If the original phone use 5v/2A but we use the charger 5V/1A , it will provide 1A only to charge the phone and the charger will get hotter (v.s if we use the charger 5v/2A) ? that is not the SLOW charge due to the charger gets hotter and hotter, the output current of charger will not be stable, this issue will make the battery of phone to be issued due to the current charging is not stable ?

Again if the charger has a 1A code, then phone not will try to draw more than 1A from the charger. This will mean a slower charging.
Only problems is chargers that report a 2A (or more) code and cannot deliver 2A. I suspect many phones will recognize the Apple 2.1A & 2.4A codes.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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thank HKJ for your quicl reply.
as I faced an issue (like you mentioned above) that 1A charger still tried to provide more than 1A (1.1 or 1.2A), as my check by usb metter, I saw the current often change from 0.7A in few secs, then increase to 0.9-1A in another few secs, and some time keeps up to 1.1-1.2A. the current ouput not stay at a fix value, just change from 0.7A to 1.2A in charging time. Is it not good right ?

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Ronron wrote:
thank HKJ for your quicl reply. as I faced an issue (like you mentioned above) that 1A charger still tried to provide more than 1A (1.1 or 1.2A), as my check by usb metter, I saw the current often change from 0.7A in few secs, then increase to 0.9-1A in another few secs, and some time keeps up to 1.1-1.2A. the current ouput not stay at a fix value, just change from 0.7A to 1.2A in charging time. Is it not good right ?

If the voltage drops below 4.8 volt (or something like that) when the current goes up, the charger is overloaded, but a smart phone ought to notice it and keep the current down.
If the voltage stays above 4.8V it is the phones charge algorithm that includes the current changes.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Ronron
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HKJ wrote:
If the voltage drops below 4.8 volt (or something like that) when the current goes up, the charger is overloaded, but a smart phone ought to notice it and keep the current down. If the voltage stays above 4.8V it is the phones charge algorithm that includes the current changes.

Many thank HKJ, it is clear.

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Thank You HKJ.  That's helpful.

 

slmjim

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