Since I just plug my cell to charger when going to sleep, I don't mind slower charging - in fact I don't see any real life use of Quick Charge so then should I replace my charger with a generic (of course good brand one) 2A charger to in theory increase battery life? Or is it a bad idea because the phone, Mi Note 2 to be precise, was made was designed with QC3 in mind?
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I was wondering if standalone desktop battery charger for Universal good in recharging batteries or if they shorten the battery life. Thanks!
As long as the minimum specs for the universal are met by your charger it should not shorten your battery's life in any way.
Me and other people across the forum have used a moto razr charger to charge our universals, good results have been achieved, i have a charging/sync craddle bough out in ebay for few euros, it's branded "just mobile", it has its own battery charger (rated at 5V, 1A) and it works fine, although many people have had problems just with this charger.
One last thing, the real battery charger circuit is inside the pda, so provided that the battery charger is normal to good quality (5V +/- 10%, 500mA to 1A), you should not have any problems.
Bear in mind however that the battery can 'sk' for up to 1A if its almost flat. This means that your charger should be able to deliver it if you want to charge your battery
In the meantime I got inspired by some threads in which people claimed that 2A (amp) charger will make it faster to charge up my note then original 1A charger. I bought original Samsung 2A charger for Samsung galaxy tab and tried that out and I must say that during the first week or two the charging time decreased from around 2.5 - 3 hours into something around 1h 40-50 min.
Later on everything returned to standard 3 hours though, charging with 2A charger is almost identical to 1A charger so from my experience there is no added value with this approach (unless ICS will make a change, or some custom rom).
For anyone interested I enclosed picture where in the top row you may see charging with 1A charger after 1h50min, 2h40min (both just random pics), then when this app (https://market.android.com/details?id=net.whph.android.battery) said it is 100% and the last picture is when galaxy note (Android) system said it is 100% (green battery icon). In the bottom row there is the same scenario with 2A charger. I am on the stock rom 2.6.35.7-N7000XXKKA.
Im not sure but I think you need a kernel that allows more than 1A charging for the 2A charger to work.
EarlZ said:
Im not sure but I think you need a kernel that allows more than 1A charging for the 2A charger to work.
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I guess so, what makes me slightly uncertain is that initially, charging time was around 2 hours ...
This is an interesting thread. I'd like to get more information about 2A chargers and whether they really make a difference.
Also I heard that when plugged to a TV (using the MHL cable) the phone may actually consume the battery more, even when plugged to the charger simultaneously. therefore if 2A chargers charge faster, it may also solve this problem.
Qvp said:
This is an interesting thread. I'd like to get more information about 2A chargers and whether they really make a difference.
Also I heard that when plugged to a TV (using the MHL cable) the phone may actually consume the battery more, even when plugged to the charger simultaneously. therefore if 2A chargers charge faster, it may also solve this problem.
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I actually have both, micro USB to USB and micro USB to MHL cables. Wasn't able to test them for a longer time as they sometimes work and sometimes don't, especially mhl cable shows videos for like 30 seconds and then there is a lost signal message on my TV, then it wakes up, then it is gone again ... I could fiddle wit it, but will rather wait for ICS upgrade and then will return to it again.
Sent from my SGN
Iphone charger
I am using the iPhone charger. It is a 2A and so far I see an improvement in the battery life. With the original charger (and BB one) the battery reading was 2100mAh . Now is 2600mAh. I don't know why or how.
Also I see a sightly improvement in how the battery lasts for normal use. I get around 18hours
antonioeram said:
I am using the iPhone charger. It is a 2A and so far I see an improvement in the battery life. With the original charger (and BB one) the battery reading was 2100mAh . Now is 2600mAh. I don't know why or how.
Also I see a sightly improvement in how the battery lasts for normal use. I get around 18hours
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the iPhone charger is 1a... Only the ipad charger is 2a
Sent from my Galaxy Nexus
What we need is someone with 2 notes with dead batteries and plug the original charger 1a on one and a 2a charger on the other and see which one gets fully charged first! Maybe its me but I can definitely see a difference between the original and the one I'm using (playbook charger 1.8a)
Sent from my Galaxy Nexus
big samm said:
What we need is someone with 2 notes with dead batteries and plug the original charger 1a on one and a 2a charger on the other and see which one gets fully charged first! Maybe its me but I can definitely see a difference between the original and the one I'm using (playbook charger 1.8a)
Sent from my Galaxy Nexus
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I did it, and while not with 2 notes side by side, you can have a look at the pictures at the 1st post, the time and charging rate shows its pretty same on the stock rom whether you use 1A or 2A charger. (Although it was very different first one or two weeks, after that battery get used to 2A charger and charging is as slow as with 1A ...)
antonioeram said:
I am using the iPhone charger. It is a 2A and so far I see an improvement in the battery life. With the original charger (and BB one) the battery reading was 2100mAh . Now is 2600mAh. I don't know why or how.
Also I see a sightly improvement in how the battery lasts for normal use. I get around 18hours
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Click to collapse
How did you measure the current in mAh or what app did you use? Thanks.
My bad. I am using the iPad chargers. not iPhone . Those are 2A. To verify I am using battery pro monitor.
Here is a screenshot.
Sent from my GT-N7000 using XDA
SGN stock batt with ipad charger?
Hi, I see some of you are using 2A/ipad charger to charge you SGN. My question is, will there be any side effects on that could harm the stock batt in short or long run?
FYI, atm, I have an ipad charger for home and car and i intend to just use the same charger to charge all devices including my SGN. Im not looking for a fast charging option, but just a hassle free and conveniences.
I appreciate if you could give suggestion on a dual port charger (for home and car) where I can charge my devices simultaneously at one time.
No harm as long as the volatage output from your charger is 5v. This is what pushes the current to ur device. Higher it goes more it pushes.
However the current that the charger provides decides how fast it can charge. This will also depend on the device. If the device is manufactured to charge at 1 amp and u use a 2 amp charger then it will only use 1amp. If however u use a 750mah charger it can only use 750mah and charge slowly.
@Taptalk-GalaxyNote
I noticed that when I charge my Note 8.0 with the USB wall adapter that comes with it, charging only takes about 2-3 hours but when I use the power cable of my Samsung Galaxy S Advance, charging can take up to 4-6 hours.
Assuming that I don't mind the longer waiting time, will using the latter power cable to charge my device shorten its battery lifespan or damage it in anyway? Thanks!
Addtional details:
I'm guessing that the difference in charging time is due to the difference in current. High current contributes to greater heating, which damages the battery but I'm wondering if higher temperature over a shorter duration or lower temperature over a longer duration is more damanging. Is the difference even significant?
I've read this link How USB charging works, or how to avoid blowing up your smartphone from "is it safe to use any usb cable to charge s3?" and got the idea that my device isn't going to blow up or anything like that. I just want to know if it damages the device because I've spent a good fortune on it and I want it to last for as long as possible (hopefully a minimum of 5 years). Yes, any other advice on how to prolong device lifespan is also welcome. Thanks a lot guys!
The reason its taking longer is its not providing the same amt of juice the note charger is. I looked at the output of the samsung note 8 charger and its 2amps. Looking at an oem charger for your phone its 1000mah which is 1amp so half the charging amt thus the longer charging time. Now you need to take a look at the charger and read the output amperage on it and if its less then 2 amps you are fine. If its over 2 amps then I would discontinue using it as it could cause harm.
As long as the amperage of the other charger is less then the samsung note 8 charger you won't have any issues other then longer charging time. Once you go above the 2amp rating I would be concerned as you are putting more amps into the battery then what it could be rated for in the charging cycle.
sparker366 said:
The reason its taking longer is its not providing the same amt of juice the note charger is. I looked at the output of the samsung note 8 charger and its 2amps. Looking at an oem charger for your phone its 1000mah which is 1amp so half the charging amt thus the longer charging time. Now you need to take a look at the charger and read the output amperage on it and if its less then 2 amps you are fine. If its over 2 amps then I would discontinue using it as it could cause harm.
As long as the amperage of the other charger is less then the samsung note 8 charger you won't have any issues other then longer charging time. Once you go above the 2amp rating I would be concerned as you are putting more amps into the battery then what it could be rated for in the charging cycle.
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Actually, the amps used to charge with is up to the device not the charger. If your device comes with a charger that has an output rating of [email protected] and you plug it into a charger rated at [email protected] it won't necessarily charge it any faster unless the device pulls more than it should. Just means the charger has a higher output rating and can handle more power hungry devices. It should not hurt the device. However, if you up the voltage than there will be problems so you need to make sure the charger does not exceed the voltage. Plugging the device into a charger with lower ratings will of course charge slower because the device cannot draw as much.
sparker366 said:
The reason its taking longer is its not providing the same amt of juice the note charger is. I looked at the output of the samsung note 8 charger and its 2amps. Looking at an oem charger for your phone its 1000mah which is 1amp so half the charging amt thus the longer charging time. Now you need to take a look at the charger and read the output amperage on it and if its less then 2 amps you are fine. If its over 2 amps then I would discontinue using it as it could cause harm.
As long as the amperage of the other charger is less then the samsung note 8 charger you won't have any issues other then longer charging time. Once you go above the 2amp rating I would be concerned as you are putting more amps into the battery then what it could be rated for in the charging cycle.
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Thanks I checked the charger and it says 0.7amps.
i am thinking about if my E975 is limited when it comes to how many amps it can charge with bcs i recently brought a 2A charger also tried it out on my Google Nexus 7 2013 and i don't feel like it charges that much faster then my original LG charger with a 3meter flat OEM kable.
the charger i brought is said to charge with 2A while the original LG is only 1.2A shouldn't i be feeling a difference?
puma99dk| said:
.the charger i brought is said to charge with 2A while the original LG is only 1.2A shouldn't i be feeling a difference?
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No, you shouldn't. You can plug it into a 10 Amp charger, but the phone will only draw the amount it needs. Remember, it's not the charger pushing the current to the phone, it's the phone pulling it from the charger. The charging current is determined by the phone - each Li-Ion or Li-Po battery has a controller curcuit. The important thing is for a charger to be able to provide what a device wants to draw - otherwise, it would charge slowly, or not at all. So, a charger should be rated for not less than X Amp. More amp rating won't hurt, but it won't increase the actual current...
oh this is very useful. I also had the same question.
mine came with a 750mA (.75A) charger. As I left my charger at home during the holidays, I had to make due with one that I bought from a nearby tech store. I was very happy with the charger that I bought as it charges my phone really fast. I found out that my new charger was also a 2A model.
so I guess, in my experience, I noticed a big improvement in charging speeds comparing the 750mA with the new 2A charger. But I guess coming from a 1.2A charger, it only makes little difference.
I have a couple of generic chargers I've been using with my note 2 for a couple of years. I realize these will charge slower than the samsung fast charge charger but is there any reason we can't use them or will they impact battery life (I would think they would increase battery life); i supect the answer is that they are fine but maybe battery technology has changed and there is some 'smarts' between charger and battery that would be damaged by these ?
No issue using your old charger except as you mentioned it won't be fast charging. I do not believe that the fast charging will hurt the battery. The fast charge only works for the first portion of the charge then the rate of charge slows to a trickle charge.
U can use any charger but i recommend to use any charger with 2amp output as it charges quick 40% in 30 mins insteas of 50%in 30 mins with original.
Original charger has two modes 9v and 5v it charges with 9v untill 50% and switches to 5v after that.
I think the unit i use is a sanyo 800ma 5 volt. I don't mind the slwo charge as long as it can't harm the battery. This is only used during travel and office; @ home I use the charger that came with the device.
You can definitely use another charger. Like said before it wont charge as fast. The adapter that comes with the phone will charge your phone at 9v instead of the normal 5v. If you use a different usb cable with the charger it will still charge at 9v. If you change the adapter, it will charge at the normal 5v whether you use the another usb cable or the one that came with the phone. The usb cable is just wires. The wall adapter is what determines how fast it will charge...