Not an electrical engineer by any means. Just wondering if the higher output of an iPhone charger (5v, 1a) is OK to use with the S3 (5v, .7a charger) or will it damage the phone?
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d3athsd00r said:
Not an electrical engineer by any means. Just wondering if the higher output of an iPhone charger (5v, 1a) is OK to use with the S3 (5v, .7a charger) or will it damage the phone?
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The S3's AC charger is 1amp too (at least mine is), and no, using a 2amp charger won't harm it (or help it charge faster (without a new kernel)), as the phone limits input to prevent battery damage.
zmore said:
The S3's AC charger is 1amp too (at least mine is), and no, using a 2amp charger won't harm it (or help it charge faster (without a new kernel)), as the phone limits input to prevent battery damage.
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Thanks. Was looking at my S2 charger. My S3 charger is 1amp. Yay! Now I have 5 new chargers...hopefully they all work.
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Related
So i just sold my old blackberry curve and along with it the wall charger i used for my MT4g
so i looked around my house for another corded wall charger as the plug-usb cable combo just doesnt work for me as the cord is way too short for my needs
well i found an older Moto wall charge PN# SPN5334A...it has the same basic specs are the mytouch plug part with the Input: 100-240~200mA 50-60Hz...but the output is 5v 550mA instead of the mytouch plug being 5v 1A
so the question is...will the different of almost a half an amp cause any serious issues other than maybe a slower charge? any potential for damage to the battery or phone or even the charger?
well any help would be great...thanks
No it wont hurt the phone, only way to damage it is to over amp, as in say it was 2.5 amps but however it will slow the charge down I recommened going to a a store that sells computer stuff and picking up a usb extension cord I got a 3 foot on mine and dont see any draw backs as I do with a under amped charger
f1vel66a said:
No it wont hurt the phone, only way to damage it is to over amp, as in say it was 2.5 amps but however it will slow the charge down I recommened going to a a store that sells computer stuff and picking up a usb extension cord I got a 3 foot on mine and dont see any draw backs as I do with a under amped charger
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yeah i never really considered extending the usb cable...i actually have a 6 ft extension cable sitting in my drawer
but i appreciate the info
No problem hope it helped
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f1vel66a said:
No it wont hurt the phone, only way to damage it is to over amp, as in say it was 2.5 amps but however it will slow the charge down I recommened going to a a store that sells computer stuff and picking up a usb extension cord I got a 3 foot on mine and dont see any draw backs as I do with a under amped charger
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What's over amp? If the voltage is correct, the higher the amperage the more efficient it(charger) is, as the phone will draw as much as it needs to charge, in this case around 1amp according the factory charger.
Matching voltage is the important part. Too low of amperage will result in slower charge or no charge when using and plugged in at the same time.
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sleepyfu said:
What's over amp? If the voltage is correct, the higher the amperage the more efficient it(charger) is, as the phone will draw as much as it needs to charge, in this case around 1amp according the factory charger.
Matching voltage is the important part. Too low of amperage will result in slower charge or no charge when using and plugged in at the same time.
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All voltage is the force pushing the amps through. Amps is the actual energy. Resistance is a factor too. Check the Watts to see that they match. But don't over amp it as well
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I meant there is no such thing as over amp. Amprage rating is for how stout the power supply is. A 5v/2amp supply can charge 2 of these phone with out issues. 500mA will charge but slow. Think of car batteries they are all 12v and the "long lasting" or "performance " ones will have better amp ratings.
Wattage is simply volt x amp, in this case here, volt is the constant.
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sleepyfu said:
I meant there is no such thing as over amp. Amprage rating is for how stout the power supply is. A 5v/2amp supply can charge 2 of these phone with out issues. 500mA will charge but slow. Think of car batteries they are all 12v and the "long lasting" or "performance " ones will have better amp ratings.
Wattage is simply volt x amp, in this case here, volt is the constant.
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If by over amp, you mean over charge? Too much amperage causes a lot of problems, just like too much voltage can cause a lot of priblems
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sleepyfu said:
I meant there is no such thing as over amp. Amprage rating is for how stout the power supply is. A 5v/2amp supply can charge 2 of these phone with out issues. 500mA will charge but slow. Think of car batteries they are all 12v and the "long lasting" or "performance " ones will have better amp ratings.
Wattage is simply volt x amp, in this case here, volt is the constant.
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I've seen phone batterys blow from to much amps... You can go + .5 amps max on a cell phone before things start to go wrong. And that isnt recommended for to long unless you want battery issues
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So did it happen with a 5volt output charger or something higher? I have seen 8v mini usb charger from Motorola around, that will blow out your HTC battery.
Also can happen if there is a problem with the phones charging circuit, not from a 5v charger with a high amperage rating. Now with a higher amp rating, and your phone has issues, the more amps is available, the bigger "battery blow" you can achieve.
Do I recommend more than 5v/1amp? not really, but can you use a 5v/2amp charger or a 5v/4amp charger if it exists? Yes. Is 1amp safer? kinda.
How do I know this? it was an amperage question I answered wrong at my every 1st job interview 11 years ago.
These guys put it in better words than I do.
sivankls said:
DOESN'T MATTER ..if u know the basic Ohms Law..its the max capacity of the charger.(or any source) the current regulating circuits will take care of the real charging current fed to the battery
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tkteun said:
I charge my phone on my computers USB connection all the time, all computers have a maximum of 500mA USB current.
Amps are pulled from the charger, not pushed to the phone.
Voltages are pushed to the phone, not pulled from the charger.
If the phone draws too much current from the charger, the voltage drops to a point where the maximum power (P (Watt) = U (Voltage) * I (Amps)) of the charger isn't exceeded.
According to the USB specification you need at least 200mA with 500mA recommended +5VDC.
More is never a problem, you could even use a 50A power supply without breaking your phone. Practically spoken: I wouldn't do that.
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Hi,
I have some chargers at home and they all have different Amperes in their specs (see title).
Nexus comes with 1.0A wall charger.
Is it safe to use lower or higher ampere chargers?
For instance I have a 2.0A car charger which I bought for my iPad2:
Not sure if it's safe to use it.
Thanks!
Don't use anything over 5V/1A as it might fry your device. <1A should be no problem, <0.5A will be quite ineffective.
Valynor said:
Don't use anything over 5V/1A as it might fry your device. <1A should be no problem, <0.5A will be quite ineffective.
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Thanks!
Then I need a new 1A car charger. That's not very good as I will need to have two chargers in the car (1A and 2A) because 1A is ineffective for iPad2.
From what I've read, the rated Amp doesn't matter. A 2A will work fine, but Nexus can only draw up to 1A no matter what.
wonshikee said:
From what I've read, the rated Amp doesn't matter. A 2A will work fine, but Nexus can only draw up to 1A no matter what.
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If the Nexus handles it the right way .. yes. Until Samsung or Google tell me it's ok, I won't try it with my device, though.
FWIW, Apple says that it's okay to use he 2A iPad charger for its iPhone.
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TheNexus 7 charger has a 5V 2A charger while the HOX uses a 5V 1A. Could I use the nexus charger without damaging the battery or the phone ? Would it charge faster ?
Trying won't harm the phone. Current is not pushed into the phone to charge the battery, the phone pulls current. But I don't think it will charge faster as the One X doesn't know how to check if the charger is more than 1A, and doesn't need more than 1A. Most lithium batteries should be charged over 3-4 hours.
yves.alexis said:
TheNexus 7 charger has a 5V 2A charger while the HOX uses a 5V 1A. Could I use the nexus charger without damaging the battery or the phone ? Would it charge faster ?
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No, it won't. You really think HTC wouldn't sent another charger if that's the case?
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Thx for the explanation
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Worth a try, check current widget while charging and you should be able to tell if it is using the extra available current.
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AFAIK the HOX only accepts up to a maximum of 1A.
My question is would using a 2.1 amp wall charger over the stock charger pose any danger of damaging my Flo?
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My stock charger is still unwrapped.
I'm using a 2A charger for all my tabs (Nook HD+, Nook Touch, old & new N7s).
TADitto said:
My question is would using a 2.1 amp wall charger over the stock charger pose any danger of damaging my Flo?
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The charger spec just lists the max output. The tablet is the one that decides how much current to pull. So it is safe to use the 2 amp charger.
How fast will it charge with an 2,1 amp charger ?
fsi09 said:
How fast will it charge with an 2,1 amp charger ?
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At this point, I don't think it has been determined. Install a battery monitor to see if it draws more current with a 2a supply over the stock 1.3a.
I am living in Germany so I don't have a Nexus 7 yet. But the charger of my mobile phone is broken and I would buy the 2amp charger, if it charges faster because I can use it with my Nexus 7, too.
fsi09 said:
I am living in Germany so I don't have a Nexus 7 yet. But the charger of my mobile phone is broken and I would buy the 2amp charger, if it charges faster because I can use it with my Nexus 7, too.
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There is something to be aware of when buying a 2a supply. The original Nexus 7 required the data pins (2 and 3) of the charger to be shorted in order to draw full current (don't know if the new one behaves similarly).
The majority of usb chargers out there are designed with Apple products in mind, which shunt a resistive load across these pins to tell the device how much current is available. The result of using the original Nexus 7 with these chargers is that the device only draws about an amp.
My experience has been that HTC chargers have the correct pins shorted, while Monoprice's do not. Your on your own with any other brands. You'd need to measure those pins with an Ohm meter to be sure.
I got an original Samsung charger, looks just like the original charger I have for the SGS3 (same shape, cable & everything).
only difference is the output on it is 2.0A, while the output for my charger is 1.0A.
will it make a difference if i use this charger for my SGS3? just in case it can blowup the phone or something
666pluto said:
I got an original Samsung charger, looks just like the original charger I have for the SGS3 (same shape, cable & everything).
only difference is the output on it is 2.0A, while the output for my charger is 1.0A.
will it make a difference if i use this charger for my SGS3? just in case it can blowup the phone or something
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No problem if the output is Always 5V.
2.0A only means the max power the Charger can send out. If the phone request max 1.0A, then the charger give it 1.0A. No difference in charging time, no difference at all.:good:
666pluto said:
I got an original Samsung charger, looks just like the original charger I have for the SGS3 (same shape, cable & everything).
only difference is the output on it is 2.0A, while the output for my charger is 1.0A.
will it make a difference if i use this charger for my SGS3? just in case it can blowup the phone or something
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Well my fellow Israeli, I'm using 2.0A and it's been great so far.
Bought it in a "private store" and they gave me a 0.7 A charger. So after moving from 0.7A to 2.0A it did made a noticeable difference.
By the way, the 1.0A limit can be changed with a custom Kernel. Such as*Boeffla Kernel.
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Better than the stock S3 charger. I'm using 2.1A charger. Charges up my S3 so fast. It charges 65% in 20 mins
QIQgame said:
Well my fellow Israeli, I'm using 2.0A and it's been great so far.
Bought it in a "private store" and they gave me a 0.7 A charger. So after moving from 0.7A to 2.0A it did made a noticeable difference.
By the way, the 1.0A limit can be changed with a custom Kernel. Such as*Boeffla Kernel.
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about the limit change, is it safe to play with such an option? didn't they place this limit for a reason?
but out of interest, how much faster can you make it charge if you change the limit?
Fast charging your battery is very similar to overclocking your cores. If it draws higher amperage and the temperature goes up it will shorten the life of the battery. Slower charging keeps the temperature low and lengthens battery lifespan.
Fast charge w/ High amps = High temps, charges fast, & shortens battery lifespan
Normal charge = Low temps, normal charge speed, & longer battery lifespan
Bottom-line, if you don't mind getting a new battery and want to charge your phone quickly, enable fast charge.
666pluto said:
about the limit change, is it safe to play with such an option? didn't they place this limit for a reason?
but out of interest, how much faster can you make it charge if you change the limit?
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I agree with my friend up above me.
pretty sure that over heating your battery will degrade the battery's chemicals & with time your maximum capacity will decrease.
My personal routine is using another 2 Zero Lemon spare batteries with their external slow charger (0.6 A).
always got a spare in my wallet and it is saved from a possible "memory effect" syndrome which shouldn't be excited in lithium ion batteries, but a recent study by a Japanese guy shows signs of a memory effect.
No idea how much time I save by fast charging. I'll time it next charge for you.
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Where can i get this charger?
Hey guys,
can you tell me, where i can get this 2A-charger for my S3? Preferably with a german plug...
Regards
Clark
Clark789 said:
Hey guys,
can you tell me, where i can get this 2A-charger for my S3? Preferably with a german plug...
Regards
Clark
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there's no 2A charger for the S3. the one i have was originally for note 2 or something, i forgot. but you can charge the S3 with it...
if you have a regular 1A charger, then don't worry about it, it's the same basically
S3 is coded in the kernel to only charge at 1000ma.
You can override these settings with some kernels, but I wouldn't. Frying charging circuits are quite annoying.
It's for the S4. Note 2 chargers were black like ours.
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