My wifes Galaxy S3 came with a 1amp charger. My note 2 came with a 2amp. Would it be better to charge the note 2 with the 1amp charger vs the 2amp? I remember reading a post that said the 1amp charger would take longer but the battery would hold that charge longer/better than what the 2amp would provide. The 2amp would charge it faster but the charge wouldn't be as good/longer lasting.
What do you guys think?
Thanks
Either one will work. I would use the 2 amp one. Just because the charger outputs 2amps it doesn't mean the phone will draw all 2amps.
the 2 amp charger won't get drawn for all 2 amps, but it will get drawn more than 1 amp. charging slower (with the 1 amp) won't mean it will keep the charge any better
Sent from my SPH-L900 using xda app-developers app
if you need speed use the 2amp. if you don't need speed you can extend the life of your battery by using the 1amp. (slower charge is healthier for the battery in the long run though not likely measurable by the likes of us)
jarablue said:
My wifes Galaxy S3 came with a 1amp charger. My note 2 came with a 2amp. Would it be better to charge the note 2 with the 1amp charger vs the 2amp? I remember reading a post that said the 1amp charger would take longer but the battery would hold that charge longer/better than what the 2amp would provide. The 2amp would charge it faster but the charge wouldn't be as good/longer lasting.
What do you guys think?
Thanks
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Click to collapse
There is a reason Samsung included the 2amp charger. The Note 2 has a huge battery. The 2 amp charger will charge your note 2 faster. The device draws the amount of amps it needs. The charge is held the same way, doesn't matter the amps. Im sure Samsung wouldn't include a charger that would damage/negatively effect the battery.
Sent from my SPH-L900 using xda app-developers app
Related
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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Click to collapse
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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Click to collapse
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
Click to expand...
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 have an unused Galaxy Tab 7 Plus charger, which output 2A instead of 1A that the original Note charger output.
Is it OK to use the GT7 charger with higher output to charge the Note? If yes, this will save me buying another Note charger.
It's okay as long the voltages are the same. The phone will take 1 amp of current and the rest alone.
I am using a 2amp charger from hp touch pad with no issues for months.
Edit : my car chargers are 2amp too
Sent from my GT-N7000
aalupatti said:
It's okay as long the voltages are the same. The phone will take 1 amp of current and the rest alone.
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Thanks for the info.
Both the Galaxy Tab and Note chargers have 5V output, with only differences in Amperage, which is 2A for Tab and 1A for Note.
So looks like I am good to go!
Yes.
Sent from my GT-N7000
yeh its fine, the phone will only take as much current as it needs, the 2amp rating is just the maximum posible output from the charger.
I doubt if anyone is as lazy as me but when I first got my note 2 the other day I didnt bother unpacking everything and just charged my phone on my old note 1 charger. I was very disapointed on how long it was taking to charge so I checked the specs written on the side of chargers and noticed the old charger has a 1amp output and the new charger has a 2amp output. Just thought id share this as I know alot of you are previous note 1 owners .
Sent from my GT-N7100 using xda app-developers app
i tried the galaxy s2 charger with 0.7 amps and it charger 10% overnight
podface said:
i tried the galaxy s2 charger with 0.7 amps and it charger 10% overnight
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Loool that's y it took me so long to charge my phone at my girlfriend's place ...
Sent from my GT-N7100 using xda premium
podface said:
i tried the galaxy s2 charger with 0.7 amps and it charger 10% overnight
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If it was legit .7 amp charger, then it'd only take 3.1 mA/.7 = 4.4 hours to fully charge.
So something is wrong with your charger or widget.
I highly recommend a widget like battery monitor widget so you can observer how fast your phone is charging with whatever charger/cable combo you are using.
Some of my old note 1 chargers are happy, like my griffin car charger. Others, like my t-mobile 1A charger, definitely aren't.
YMMV.
- Frank
I used Charger Timer, https://play.google.com/store/apps/details?id=com.vexedbadger.chargertimer , to test the rate of the 2.0a charger the note came with compared to a 1.0a samsung charger from my wifes note 1.
2.0a
Averaged a 1% charge every 73.85 seconds @ 1511ma
It would take 2 hours and 4 minutes to go from dead to fully charged.
1.0a
Averaged a 1% charge every 110.62 seconds @ 1008ma
It would take 3 hours and 4 minutes to go from dead to fully charged.
I expected the 2.0a charger to be twice as fast, but that wasn't the case. Either way I glad this phone has 2.0a charging and will buy more 2.0a chargers. The extra charging speed is a nice feature I don't think any other phone has.
If anyone else wants to run any tests to compare I would appreciate it.
Futant55 said:
I used Charger Timer, https://play.google.com/store/apps/details?id=com.vexedbadger.chargertimer , to test the rate of the 2.0a charger the note came with compared to a 1.0a samsung charger from my wifes note 1.
2.0a
Averaged a 1% charge every 73.85 seconds @ 1511ma
It would take 2 hours and 4 minutes to go from dead to fully charged.
1.0a
Averaged a 1% charge every 110.62 seconds @ 1008ma
It would take 3 hours and 4 minutes to go from dead to fully charged.
I expected the 2.0a charger to be twice as fast, but that wasn't the case. Either way I glad this phone has 2.0a charging and will buy more 2.0a chargers. The extra charging speed is a nice feature I don't think any other phone has.
If anyone else wants to run any tests to compare I would appreciate it.
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Nice. Thanks for the test results.
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
now where is my 2.0a OEM car charger?
I don't trust those no name car charger claiming to be 2.0a.
1.0 vs 2.0
Mini-type or 2/3A recomend to use 1.0A, and large type or Sub-c recomend to use 2.0A.
Where is a good place to order an OEM charger?
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
I bought a 2.0a usb plug that is made by belkin for ipad, the samsung cable plugs in no problem
Sent from my SAMSUNG-SGH-I317 using xda premium
Any recommendations for sloar portable charger for NOTE-2 ?
I bought already one and instead of charging it is draining down the battery! Probably because it uncomon 11pins USB. This happens when I connect to solar panel. When I connect to battery power bank everything works fine, but my main puprose was to use the solar panels.
Arthur
What is the power output of the solar panel your using?
I think its 0.5 W
Sent from my SGH-T889 using xda app-developers app
Someone chime in here if im wrong. But based on output power of .5 watts, and voltage being 5 volts. I see that as having a current output of 100mAh.
Home computers have a usb output of 500mAh and the standard home charger that comes with it is 1000mAh or 1Ah charger.
Based on that, unless my math is wrong, which it could be as i suck at match, LOL, your not putting enough power into your phone. This is why its draining.
5 watts would give you 1000mAh output, which is whats recomended for the unit. I would say anything less then 3 or 3.5 watts would be breaking even.
IAmSixNine said:
Someone chime in here if im wrong. But based on output power of .5 watts, and voltage being 5 volts. I see that as having a current output of 100mAh.
Home computers have a usb output of 500mAh and the standard home charger that comes with it is 1000mAh or 1Ah charger.
Based on that, unless my math is wrong, which it could be as i suck at match, LOL, your not putting enough power into your phone. This is why its draining.
5 watts would give you 1000mAh output, which is whats recomended for the unit. I would say anything less then 3 or 3.5 watts would be breaking even.
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correct. Minimum you'll need to charge is 5W or 1 amp. 500 mA will just slow discharge. The charger that came with the phone is 2 A or 10W, this is why it charges faster. He'll probally need to charge the battery pack on the solar charger, then use the battery pack to charge your phone.
Sent from my SGH-T889 using Tapatalk 2
Thanks for pointing that out _Dennis_ I have been using a 1 amp charger for mine, charging at night while im asleep. I was not aware that it came with a stock 2 amp charger. Ive got other 1 amp chargers set up from previous phones so i never used the stock one.
So my math above is off by 50% since i was basing it off 1 amp charging, and the stock is 2 amp.
Ok, so if I go towards phone/notebook solar charger, what would be recommended ? My Samsunf tablet comes with 19v 2A adapter so itlooks like if I have charger to supply this same amount of power it should work for Slate and Note2 as well. Right ?
Sent from my SGH-T889 using xda app-developers app
Is 19V the output? If so then NO. The Note 2 requires 5V 2A..