is it really unsafe to charge the Moto G with 2.0A USB chargers? - Moto G Q&A, Help & Troubleshooting

I can't remember where I read this on Motorola's website, but I seem to recall
something about charging the Moto G using USB chargers under 1.5A.
All of my chargers are 2.0A or higher. (all were original chargers from
my four Samsung Galaxy Note 2 and 3 phones, as well as tablets)
is it really unsafe to charge the Moto G with 2.0A USB chargers?

You are fine to use any amperage you want. The charging chip determines the amperage it pulls. The only danger to electronics is the wrong voltage, not amperage.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

mcnutty said:
You are fine to use any amperage you want. The charging chip determines the amperage it pulls. The only danger to electronics is the wrong voltage, not amperage.
Sent from my SAMSUNG-SGH-I747 using Tapatalk
Click to expand...
Click to collapse
that's what I figured, but why does Motorola feel the need to
say "up to 1.5A"??? (in fact, I don't think I have ever seen
1.5A chargers... they are usually 0.5, 0.7, 1.0A, or 2.0A.

Because they are letting you know the maximum rate at which it can charge. It's not a warning that you can cause damage, just a notice that is the most the charging chip will pull.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

I'm using a 2.0A charger for about 2 month now without any problems. :good:

badkitties said:
All of my chargers are 2.0A or higher. (all were original chargers from
my four Samsung Galaxy Note 2 and 3 phones, as well as tablets)
is it really unsafe to charge the Moto G with 2.0A USB chargers?
Click to expand...
Click to collapse
It is the maximum capacity the charger can supply. So if the device only needs 1.5 A and the regulator circuit is not faulty, it will only provide 1.5 ampers.

Related

what voltage/amps replacement charger?

I bought my G2X used and it didn't come with an AC charger. I've been using another charger I have from a LG phone (STA-U12WD) that is 5.1V and 0.7A. Was looking for a replacement and I read on an Amazon review that the original charger is a STA-U13WV 4.8V and 1A.
Can someone check their charger for me? Thanks.
You'll want both a high amperage and high voltage. Look for a 5 volt (or 5.1) and 1 amp charger.
Think of it like a water hose. Voltage is the pressure, amperage is the width of the hose. So higher width and higher pressure gets the most water. Also note that lowering the width of the hose increases the pressure.
Sent from my LG-P999 using XDA
hey redmonke, do you own the original charger? Can you check the model #?
and if you recommend a charger with higher amperage or voltage what are the limits?
spitswap said:
hey redmonke, do you own the original charger? Can you check the model #?
and if you recommend a charger with higher amperage or voltage what are the limits?
Click to expand...
Click to collapse
I have the original charger that came with my T-Mobile G2x:
Model #: STA-U13WV, Output 4.8v, 1.0a
In my car I use a 5 volt 2 amp charger (though I'm not sure if it's 5 volt split across 2 outputs or if it's for one output, I'll need to test when I get back from university) . Look for 5 volt 1 amp on Amazon with good reviews.
I currently use a cheap 5 volt 700mA charger and it's alright, though it's not the fastest.
Sent from my LG-P999 using XDA
andrewNY said:
I have the original charger that came with my T-Mobile G2x:
Model #: STA-U13WV, Output 4.8v, 1.0a
Click to expand...
Click to collapse
thanks man!
I use an apple charger. I also have a charger that can charge a battery and has a USB output of 5.2v @ 800Mah. I'm a little concerned of the 5.2v, I don't want to use it and 6 months later my phone stops charging or worse.

[Q] Charger Question

So, I've been wondering this for a while and thought I just ask. I've read about stories where people bought 3rd party chargers and had their phone malfunction. Because of this I have been worried about using any other type of charger and stick with the stock. Would it be fine to charge my Nexus 5 which a more powerful charger. For example the Nexus 7 charger? There's also a few other 3rd party chargers which seem to be much more powerful, but I was just worried that it would cause problems for the phone. Thanks in advance!
I've got a ton of Chargers laying around and they all work just fine. As long as the charger output is 5 volts you should be okay.
Sent from my Nexus 5 using Tapatalk
0dBu said:
I've got a ton of Chargers laying around and they all work just fine. As long as the charger output is 5 volts you should be okay.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Exactly 5 volts? The Nexus 7 charger is 5.2
PsychDrummer said:
Exactly 5 volts? The Nexus 7 charger is 5.2
Click to expand...
Click to collapse
It should probably be fine. I used my Mom's Nook charger at her house the other day with no issues.
Sent from my Nexus 5 using Tapatalk
0dBu said:
It should probably be fine. I used my Mom's Nook charger at her house the other day with no issues.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
http://www.amazon.com/Anker-Dual-Po...5839252&sr=8-1&keywords=anker+usb+car+charger
So this one is apparently 18V...says should work though. Weird.
PsychDrummer said:
http://www.amazon.com/Anker-Dual-Po...5839252&sr=8-1&keywords=anker+usb+car+charger
So this one is apparently 18V...says should work though. Weird.
Click to expand...
Click to collapse
the charger that you linked to is 18 W (aka Watts), but it is still 5V. it has a max output of 3.6A (amp). Watts = Volts x Amps.
As long as it's 5V, you should be fine. using a charger with a higher max A rating won't change anything, how much current that is actually drawn (amps) depends on the device.
jss2 said:
the charger that you linked to is 18 W (aka Watts), but it is still 5V. it has a max output of 3.6A (amp). Watts = Volts x Amps.
As long as it's 5V, you should be fine. using a charger with a higher max A rating won't change anything, how much current that is actually drawn (amps) depends on the device.
Click to expand...
Click to collapse
Oh I see. Thanks!
Okay, quick electrical lesson.
Volts: This one is relatively fixed at 5 for all "USB-Powered" devices. However, virtually all electrical devices have a 10% allowable variance. So... anything from 4.5V to 5.5V should work just fine, and be considered "safe." Of course, this can be tricky since some less-than-trustworthy manufacturers (*cough*China*cough*) will include the 10% variance in the specs. So... a charger rated for 5.5V charger may actually be running at 5.8V, which is within the 10% variance for a 5.5V device, and since 5.5V is within the variance for the 5V spec, they'll just double-down, and stamp it with 5V, which is bad. Confused? Yeah, me too. Just stay away from those cheap eBay chargers, to avoid such shenanigans.
Amps (aka Current): The thing to remember here is that the draw is king. What I mean here is that the device drawing power is what's important. If your device draws 1A, then it will ALWAYS draw 1A, no matter if it's plugged into a 1A, 5A, or 1000A charger. However, it will also attempt to draw 1A if it's plugged into a 0.2A charger, which would obviously be very bad (well, unless you're TRYING to start a fire). USB devices are designed to draw 0.5A, since that's what USB 2.0 (on a computer) provides. However, many devices can draw more if plugged into a wall charger. So... you're almost always safe plugging into a computer, but your wall charger needs to be rated AT LEAST what the device expects. That can be hard to determine, so the rule of thumb is that whatever Amperage charger the device came with is the MINIMUM amperage charger you should use. However, there is no maximum, since draw is king, so go nuts in the other direction.
Watts (aka Power): Power = Voltage x Current, so Watts is nothing more than Voltage times Amperage. Thus, a 5V charger charging at 2A is 10W (5x2=10). Now that you know this, you can ignore it. Nobody but the electric company cares how many Watts your wall charger is pushing. The only, and I mean only, thing this is good for is determining the Amperage if the manufacturer doesn't provide it. So... if the only spec listed for your micro-USB charger is 12W, then you can figure out the amperage by dividing that by 5 (since all USB devices are 5V). Your 12W charger, therefore, is pushing 2.2A. See the section on Amps, since that's what's really important.
jt3 said:
Okay, quick electrical lesson.
Volts: This one is relatively fixed at 5 for all "USB-Powered" devices. However, virtually all electrical devices have a 10% allowable variance. So... anything from 4.5V to 5.5V should work just fine, and be considered "safe." Of course, this can be tricky since some less-than-trustworthy manufacturers (*cough*China*cough*) will include the 10% variance in the specs. So... a charger rated for 5.5V charger may actually be running at 5.8V, which is within the 10% variance for a 5.5V device, and since 5.5V is within the variance for the 5V spec, they'll just double-down, and stamp it with 5V, which is bad. Confused? Yeah, me too. Just stay away from those cheap eBay chargers, to avoid such shenanigans.
Amps (aka Current): The thing to remember here is that the draw is king. What I mean here is that the device drawing power is what's important. If your device draws 1A, then it will ALWAYS draw 1A, no matter if it's plugged into a 1A, 5A, or 1000A charger. However, it will also attempt to draw 1A if it's plugged into a 0.2A charger, which would obviously be very bad (well, unless you're TRYING to start a fire). USB devices are designed to draw 0.5A, since that's what USB 2.0 (on a computer) provides. However, many devices can draw more if plugged into a wall charger. So... you're almost always safe plugging into a computer, but your wall charger needs to be rated AT LEAST what the device expects. That can be hard to determine, so the rule of thumb is that whatever Amperage charger the device came with is the MINIMUM amperage charger you should use. However, there is no maximum, since draw is king, so go nuts in the other direction.
Watts (aka Power): Power = Voltage x Current, so Watts is nothing more than Voltage times Amperage. Thus, a 5V charger charging at 2A is 10W (5x2=10). Now that you know this, you can ignore it. Nobody but the electric company cares how many Watts your wall charger is pushing. The only, and I mean only, thing this is good for is determining the Amperage if the manufacturer doesn't provide it. So... if the only spec listed for your micro-USB charger is 12W, then you can figure out the amperage by dividing that by 5 (since all USB devices are 5V). Your 12W charger, therefore, is pushing 2.2A. See the section on Amps, since that's what's really important.
Click to expand...
Click to collapse
I've plugged my device into chargers before that have rated outputs of .5A-1A when the device "expects" more... so, why didn't it start a fire?
Nitemare3219 said:
I've plugged my device into chargers before that have rated outputs of .5A-1A when the device "expects" more... so, why didn't it start a fire?
Click to expand...
Click to collapse
How much "more" are you talking about?
طوني تبولة said:
How much "more" are you talking about?
Click to expand...
Click to collapse
The stock charger is 1.2A, correct? So given that much... a charger I have used a few times on my Nexus 4 and 5 at a friend's place only outputs .5A... so at least .7A from what our phones should be able to draw.
Nitemare3219 said:
The stock charger is 1.2A, correct? So given that much... a charger I have used a few times on my Nexus 4 and 5 at a friend's place only outputs .5A... so at least .7A from what our phones should be able to draw.
Click to expand...
Click to collapse
An Android device knows that it's plugged into a wall charger, and thus can use more than 0.5A, only if the data pins are shorted together. Otherwise, it will assume it's plugged into a computer and only use 0.5A. Chargers made for android devices are usually so equipped. Apple chargers and some cheap-o chargers aren't. That's one reason why you'll see chargers with nothing more than a USB slot (no cable) specify that they're only compatible with Apple devices. Technically, they're compatible with any USB device, but not at the high charge rate.
Having said that, manufacturers can build in some safeguards. Quality chargers simply won't output more current than they're designed for. How they go about this varies. They may limit the output to their rated specs, they may blow an external breaker, or they may blow an internal fuse (usually killing the charger forever). Cheap chargers may not have such safeguards. Plus, many (if not most) phones/tablets will recognize when they're hooked up to a low-current source, and automatically switch to the low charge rate mode (0.5A).
In short, quality equipment is usually designed to be safe, with safeguards to protect against common scenarios. It's the cheap chargers that you have to worry about, because they tend to cut corners to keep the cost down. Safety provisions aren't technically necessary, and are usually the first to go.

5.0v 2A OUTPUT Charger on N5?

Hi m8s,
I sold my HTC ONE but I already bought a Universal Charger.
do you think I'll have a problem or will it mess up using this universal 5.0v - 2.0A charger on my LG Nexus 5 32Gb?
Cose in discription it refers compatibility with S4, Note 3 and Nexus7?
ebay link http://www.ebay.co.uk/itm/WHITE-2-AMP-EURO-2PIN-MICRO-USB-MAINS-CHARGER-FOR-SAMSUNG-GALAXY-S3-S4-NEXUS-7-/400592378691?pt=UK_MobilePhones_MobilePhoneAccessories_MobilePhoneChargers&hash=item5d452a9b43
refedit said:
Hi m8s,
I sold my HTC ONE but I already bought a Universal Charger.
do you think I'll have a problem or will it mess up using this universal 5.0v - 2.0A charger on my LG Nexus 5 32Gb?
Cose in discription it refers compatibility with S4, Note 3 and Nexus7?
ebay link http://www.ebay.co.uk/itm/WHITE-2-AMP-EURO-2PIN-MICRO-USB-MAINS-CHARGER-FOR-SAMSUNG-GALAXY-S3-S4-NEXUS-7-/400592378691?pt=UK_MobilePhones_MobilePhoneAccessories_MobilePhoneChargers&hash=item5d452a9b43
Click to expand...
Click to collapse
I've used my Nexus 7 2012 2A charger and my Anker 2A portable battery pack to charge various different phones including N4, N5 and HTC One without any issues-the phone's charging circuits will not allow them to charge at a higher current than the phone would like.
My worry with that charger would be the quality of it being a cheap Ebay special. Probably won't damage your device but then again it might, plus will it actually charge at 2A anyway?
Using a 5v 2.0 A charger should be fine. USB chargers are all 5V. The nexus 5 comes with a 1.2A charger. Using the 2A charger won't cause any harm because the phone itself draws the current it needs.
However, I did notice that while using my Samsung Galaxy Note 2 charger that has an output of 2A, that it started to charge my nexus at 1.5A.
So using a 2A charger over the 1.2A charger that came with the Nexus, will actually charge the phone about .3A faster
But you do have to watch who you buy it from. Some chargers don't output at the rate they are supposed to.
Sent from my Nexus 5 using XDA Premium 4 mobile app

Moto G wall charger

I have ordered a Moto G from England (GSM global version I presume), and while I am waiting for it to arrive, I would like your advice on what kind of wall charger to buy that would be optimal for the phone charge recommendations since my knowledge on the issue is very minimal.
I read somewhere that Motorola recommends between 0.5 - 1.5A , but that doesn't really tell me anything.
I have an old Samsing galaxy SII. Can I use the charger of the Galaxy for the Moto G? The output is 0.7A
As you said, any charger where the output is not too high (I recommend below 2a or below 2,5 to not stress the battery.
Conclusion: your samsung charger should work perfectly!
Edit: if you experience bad/not so good battery life (I did after update to kitkat), let your phone drain completely (shuts down) and recharge it to 100% and leave plugged in like 30-1h after it reached 100%.
But don't do this too often as it will harm your battery over time.
creambyemute said:
As you said, any charger where the output is not too high (I recommend below 2a or below 2,5 to not stress the battery.
Conclusion: your samsung charger should work perfectly!
Edit: if you experience bad/not so good battery life (I did after update to kitkat), let your phone drain completely (shuts down) and recharge it to 100% and leave plugged in like 30-1h after it reached 100%.
But don't do this too often as it will harm your battery over time.
Click to expand...
Click to collapse
Thanks. With 0.7 output would the charge be slow or fast?
creambyemute said:
As you said, any charger where the output is not too high (I recommend below 2a or below 2,5 to not stress the battery.
Conclusion: your samsung charger should work perfectly!
Edit: if you experience bad/not so good battery life (I did after update to kitkat), let your phone drain completely (shuts down) and recharge it to 100% and leave plugged in like 30-1h after it reached 100%.
But don't do this too often as it will harm your battery over time.
Click to expand...
Click to collapse
Using a charger over 2A doesn't stress the battery because the Moto G limits the current to 1.5A.
It says so right here : https://motorola-global-portal.cus...prod_answer_detail/a_id/97318/p/30,6720,9050
”Any Motorola charger with the correct micro-USB tip will charge your Moto*G. You will see the best results when the output of the charger is between 500 mA and 1.5 A. The higher the output, the faster your Moto G*will charge.
If your charger output is higher, the MOTO G will automatically restrict the charging rate. If your charger is lower, it will simply take longer to reach a full charge.”
I use my nexus 7 2A charger daily and it charges noticeably faster than my 1A HTC charger and is as Motorola stated, perfectly safe.
A 0.7A charger would charge pretty slow!
Sent from my Moto G using Tapatalk
Just under 3hrs for a 0% to 100% charge with a .75 A charger for me.
Sent from my XT1032 using XDA Premium 4 mobile app
Im using a HTC charger i already had which is rated at 1a ,seems to be working fine.
my 0.5A from 20% to 100% ~3 hours. When charging from less than 20%, I often put my phone to aeroplane mode and get ~3 hours of charging too
Sent from my XT1032
mdentener said:
Using a charger over 2A doesn't stress the battery because the Moto G limits the current to 1.5A.
It says so right here : https://motorola-global-portal.cus...prod_answer_detail/a_id/97318/p/30,6720,9050
”Any Motorola charger with the correct micro-USB tip will charge your Moto*G. You will see the best results when the output of the charger is between 500 mA and 1.5 A. The higher the output, the faster your Moto G*will charge.
If your charger output is higher, the MOTO G will automatically restrict the charging rate. If your charger is lower, it will simply take longer to reach a full charge.”
I use my nexus 7 2A charger daily and it charges noticeably faster than my 1A HTC charger and is as Motorola stated, perfectly safe.
A 0.7A charger would charge pretty slow!
Sent from my Moto G using Tapatalk
Click to expand...
Click to collapse
Many thanks. Could you recommend me on a good and not expensive charger that would do the job and charge it fast?
Since I dont live in the US, amazon is kind of useless to me since there are very few items they ship outside the US, so eBay would be a better option. I just dont want to buy something crappy
mazinya said:
Many thanks. Could you recommend me on a good and not expensive charger that would do the job and charge it fast?
Since I dont live in the US, amazon is kind of useless to me since there are very few items they ship outside the US, so eBay would be a better option. I just dont want to buy something crappy
Click to expand...
Click to collapse
I use a Blackberry branded 0.75mah micro usb charger which works well as does my Samsung Galaxy Tab2 which is 2amp charges nicely too.
I found an older HTC usb 0.7 charger did not work at all well for some reason.
charger doesn't push power, phone draws power, as long as you have the right voltage you are good
Pinktank said:
charger doesn't push power, phone draws power, as long as you have the right voltage you are good
Click to expand...
Click to collapse
Indeed but I've found some chargers vary for example my Samsung 2amp Galaxy Tab2 charger will not charge my Moto Defy+ phone, it sits there forever doing very little but the Moto G is fine with it. Probably due to the Defy+ only drawing 500mah and the Galaxy charger sees this as undercurrent and doesn't output whereas the MotoG can demand up to 1500mAh current which the Galaxy charger sees as acceptable and supplies the current.
I'd avoid any of the super cheap nasty Chinese crap chargers that seem very poorly built, unstable and potentially a death trap.
spannerz said:
Indeed but I've found some chargers vary for example my Samsung 2amp Galaxy Tab2 charger will not charge my Moto Defy+ phone, it sits there forever doing very little but the Moto G is fine with it. Probably due to the Defy+ only drawing 500mah and the Galaxy charger sees this as undercurrent and doesn't output whereas the MotoG can demand up to 1500mAh current which the Galaxy charger sees as acceptable and supplies the current.
I'd avoid any of the super cheap nasty Chinese crap chargers that seem very poorly built, unstable and potentially a death trap.
Click to expand...
Click to collapse
Sorry I meant to quote the advice above that said don't get something with too large a current.
Absolutely avoid cheap chargers, burnt home totally not worth the savings. The hp chargers left from the time they used to make tablets are pretty good actually, tested with an oscilloscope
I dont want a crappy cheap Chinese charger. Thats why I am asking for a recommendation. I have a nexus 7 2013 and the output is 2A. I assume I can use it also to charge the Moto G?
mazinya said:
I dont want a crappy cheap Chinese charger. Thats why I am asking for a recommendation. I have a nexus 7 2013 and the output is 2A. I assume I can use it also to charge the Moto G?
Click to expand...
Click to collapse
That should be fine
That's funny hey, the Australian version comes with USB cable wall charger and Motorola headset. This is the XT1033 variant.
Sent from my XT1033 using Tapatalk
mdentener said:
I use my nexus 7 2A charger daily and it charges noticeably faster than my 1A HTC charger and is as Motorola stated, perfectly safe.
Click to expand...
Click to collapse
I'm curious, is your 2A charger for a 2012 Nexus 7? Because I also plan to use my 2012 Nexus 7 charger on my Moto G, which is coming next week. How quickly does it charge the Moto G?
consolegam3r said:
I'm curious, is your 2A charger for a 2012 Nexus 7? Because I also plan to use my 2012 Nexus 7 charger on my Moto G, which is coming next week. How quickly does it charge the Moto G?
Click to expand...
Click to collapse
Yeah my nexus 7 is a 2012 model also, works just fine and charges really fast. I'll stopwatch my next recharge and report.
Edit: It charges from 10% to 100% in 2 hours with my nexus 7 2012 2A charger while incidentally using it.
Next charge I'll try my HTC 1A charger to monitor the difference
Sent from my Moto G using Tapatalk
2 hours 10 minutes from 0% to 100% with 1A charger
mdentener said:
It charges from 10% to 100% in 2 hours with my nexus 7 2012 2A charger while incidentally using it.
Next charge I'll try my HTC 1A charger to monitor the difference
Click to expand...
Click to collapse
Great, thanks for finding out!
I have a charger from Htc Explorer with this specification Input: 100-240v~200mA 50/60hz / Output: 5V-1A , and don't seems to work very well, is normal???
Thanks in advance

Using a 2A charger

Anyome using a 2A charger instead of a turbo charger?
Like a samsung 2A charger
Or a 2A power bank?
Any issues?
Because 1150 mah is too slow
I was also wondering this.I tried it with my 2,4a ipad charger once and it was charging twice as fast, but i dont know if this is good for the phone. Using the normal charger again to be sure.
With normal 1.2A charger, it takes almost 3+ hours for my phone to fully charge. I used my Galaxy Note 10 charger which is 2A and it got charged in 2 hours. I read it in the forums that even with 2A charger, we cant take the advantage of turbo charging as it will need a charger of 2.4A.
I dont know how 0.4A will make a difference but still, my knowledge is limited in this case and wouldnt want to comment on it.
The charger has to be Qualcomm QC 2.0 certified (that's a specification) to take advantage of the turbo charge mode. The amps put out by the charger is kind of secondary in this situation as the charger and phone both need to be "talking on the same page" i.e. QC 2.0
At that point (charger is QC 2.0) the special circuitry kicks in and goes into turbo mode. So its a little more involved than just throwing more amps at the phone. If you google Qualcomm QC 2.0 specification then it will give you a better idea of what it is all about.
Sent from my XT1563 using Tapatalk
Turbo charging steps up to 9v and 12v depending on what wattage the phone can handle.
I think our phones are 15w and the Style is 20w or so.
I can't get my phone to charge faster with a 2amp charger though, only my turbo charger.
I used digitech 2.4amp charge ans works like a charm superb....
It isn't causing any issues? Like battery degradation?
Sent from my XT1562 using Tapatalk
I've been using my Moto turbo charger every night for a couple weeks now and haven't noticed any issues. The phone doesn't seem to let the battery get over 35'C when its charging, so I don't imagine it'll damage the battery.
Think I may get a car charger soon, sometimes I forget to charge at night so it'd be cool to get a full charge on the drive in.
Battery will very likely not last as long when doing fast charging always compared to "normal" charges
Any fact to back that claim?
Im using a Belkin 2.1A charger, no problems whatsoever.
So what's conclusion is it safe to use 2a charger without doing damage to battery
prashu#1 said:
So what's conclusion is it safe to use 2a charger without doing damage to battery
Click to expand...
Click to collapse
I'm using a 3a charger and it's fine
You can't harm a battery with a higher amperage output charger. The phone will only consume what it is able to. If the voltage was higher (excluding quick charge adapters) then yes that will do damage, but that's a strange situation as no charger should do that unless it's quick charge.
That being said, on hand I do have a feeling that quick charge can actually do long term damage if used a lot but on the other hand, it seems to limit the maximum temperature to around 38'C. Above 40'C can cause irreversible damage to the cell. I'm using a car charger now and when the phone is in use, it gets up to around 38 or 39 and it cuts back on the charging current.
Interesting article explaining Qualcomm, fast charge, turbo charge using all the same technique under different names. They all use the same Qualcomm technique.
http://www.androidpolice.com/2015/0...-need-to-know-about-charging-your-smartphone/

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