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How fast does this thing charge?

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By lowspeed, Senior Member on 22nd February 2012, 03:59 AM
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22nd February 2012, 03:44 PM |#11  
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+1 on the Samsung charger. When I use all of the other micro USB chargers that I have it barely charges it. One night I put it on one of the other chargers at 1 am @ 23% and when I woke up at 6 am it was only at 77%. So I put it on the Samsung charger and it went to 100% by 7 am.

Sent from my SAMSUNG-SGH-I717 using xda premium
 
 
22nd February 2012, 03:47 PM |#12  
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My note charges extremely fast

Sent from my SAMSUNG-SGH-I717 using xda premium
22nd February 2012, 03:52 PM |#13  
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Hmmmmmm.

Last night I charged mine on my old HTC charger cuz I didn't feel like crawling behind the bed to swap them. When I woke up (after 8.5 hours of charging) I was at 99%. I suppose it could have been the stupid battery widget reporting incorrectly but my phone was down 8% in the first hour, with only 2 minutes of screen on time.

Guess tonight I'll swap chargers and see if that makes a difference.
22nd February 2012, 04:16 PM |#14  
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any harm in using the Ipad charger to charge the note. i use it on my Iphone and it really speeds up the time needed to charge.

My note will be here Friday.
22nd February 2012, 04:27 PM |#15  
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There may be two variables at play here - the cable, the charging source. I know with my Advantage the stock charger (with no removable cable) had an additional pin which told the Advantage to charge at a full 1 amp rate vs. the standard 500 ma available from a USB port. I think the stock Note charger is rated for 800 ma, don't have it here to verify.

Using the Note's stock cable I've seen a fairly fast recharge time both from the stock charger and my computer's USB port. Yesterday I drained down to 6%, plugged into my work computer (stock cable) for 2 hours then 1 more hour in my car and I was up to 77% after. Which included some time streaming XM via blutooth. Then plugged into the stock charger at home and was up to 100% after a few hours even though I was tethering via Wifi to 2 computers with heavy surfing.

We would need several tests to see if there is something special about the stock charger, the stock cable, or both. But compared to my Advantage it charges way faster and uses much less energy - excluding the display.
22nd February 2012, 04:41 PM |#16  
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Quote:
Originally Posted by techntrek

There may be two variables at play here - the cable, the charging source. I know with my Advantage the stock charger (with no removable cable) had an additional pin which told the Advantage to charge at a full 1 amp rate vs. the standard 500 ma available from a USB port. I think the stock Note charger is rated for 800 ma, don't have it here to verify.

Using the Note's stock cable I've seen a fairly fast recharge time both from the stock charger and my computer's USB port. Yesterday I drained down to 6%, plugged into my work computer (stock cable) for 2 hours then 1 more hour in my car and I was up to 77% after. Which included some time streaming XM via blutooth. Then plugged into the stock charger at home and was up to 100% after a few hours even though I was tethering via Wifi to 2 computers with heavy surfing.

We would need several tests to see if there is something special about the stock charger, the stock cable, or both. But compared to my Advantage it charges way faster and uses much less energy - excluding the display.


Interesting. I wonder if it's just a good low gauge (thicker, better conducting) cable, because the HTC adapters are rated 1 amp.
22nd February 2012, 10:08 PM |#17  
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People who uses the charger that came with the phone must know that these chargers are really weak... They are only 1Amp... I use my blackberry playbook charger which is 1.8Amp charges the phone almost twice as fast than the regular one... Same thing with my ipad and iphone... I use my ipad charger to charge my iphone 4s and it's way faster! Use more powerful chargers! My note gets charged in 2hours top!


Sent from my iPad 3G
22nd February 2012, 11:35 PM |#18  
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I just posted a thread in the Accessories forum about this very issue. Charge Times vary from 3.4 hours to 10 hours!!!

http://forum.xda-developers.com/show....php?t=1511878
23rd February 2012, 12:00 AM |#19  
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I'm curious to know what is the max amperage that the note can take. I know my old EVO is limited to about 950ma.
23rd February 2012, 12:26 AM |#20  
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Uh...I love my Note, but it charges pretty slowly compared to my Skyrocket. It is also the first phone I have had, that can actually discharge while using it on a car charger. Especially if you are watching video or any screen intensive task.

Sent from Tapatalk Pro on my Samsung Galaxy Note™, an AT&T LTE smartphone
Last edited by tbran; 23rd February 2012 at 12:29 AM.
23rd February 2012, 12:56 AM |#21  
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big samm, usb devices dont operate like that. The device being charged (phone) regulates the charge rate up to the expected amperage - 500 ma is the normal usb spec and the max most computer ports can supply. To get above that the source/charger must be able to supply it and the phone needs to expect it. Either by assuming the source can supply it - if it cant like when hooked to a computer no harm done, it will just charge slower. Or by getting some signal from the source like my old phone did. The Note's stock charger is 1 amp so that is likely the max charge rate. Very unlikely it would be able to go faster with a 1.8 amp source. For starters that would be dumping 7 watts into a small battery...

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