FORUMS

Xposed Modules to Modify Email – XDA Xposed Tuesday

Even though we have Dropbox and other ways to share files, people still want … more

Google Teaches You to Use Wear Gestures

Now that the Watch Urbane is out with the latest firmware, we have new information regarding the … more

Samsung Galaxy Alpha (SM-G850) Gets Android 5.0

An Android 5.0 Lollipop update is finally available to download for the Samsung Galaxy … more

Do You Use 4:3 or 16:9 in the Camera App?

Every person has their own method of taking the best photos on their devices, but which aspect … more
Post Reply Subscribe to Thread Email Thread

[Q] Charging Current

18th May 2011, 11:51 PM |#1  
OP Junior Member
Thanks Meter: 0
 
More
Hi All,

Was wondering if anyone knows the maximum current the SGS2 can draw for charging purposes. I had a look at the wall charger provided with it, and it's 0.7a; it takes forever (my opinion) to charge compared to my last phone. Just wondering if it is worth my while investing in a more powerful charger.

Cheers
 
 
19th May 2011, 02:07 AM |#2  
Member
Thanks Meter: 2
 
More
If you take the battery out and look and the sticker then it says there 1000mA
19th May 2011, 10:50 AM |#3  
OP Junior Member
Thanks Meter: 0
 
More
Excellent thanks; Can't get the back off my phone (fingernails).
20th May 2011, 10:25 AM |#4  
Member
Thanks Meter: 8
 
More
Quote:
Originally Posted by oozrafa

If you take the battery out and look and the sticker then it says there 1000mA

Also, at the start of the SGS2 charging cycle, my wall-plug power meter reads 5.1 W.
20th May 2011, 12:22 PM |#5  
Senior Member
Thanks Meter: 19
 
More
5.1 is what the adapter is pulling. All of that isn't getting to the phone. Funny thing for my is the phone charges faster off my blackberry 0.75a charger then it does off my Galaxy I 1a charger.

Sent from my GT-I9100 using XDA Premium App
20th May 2011, 01:04 PM |#6  
Senior Member
Flag Duluth, GA
Thanks Meter: 36
 
More
Someone in another thread mentioned seeing something in the source code about the phone drawing at most 650 mA (instead of a more typical 1000 mA) during charging. If that's the case, a more powerful charger by itself won't help; you'd also need a custom ROM that doesn't limit the charge current.
20th May 2011, 03:52 PM |#7  
Member
Thanks Meter: 4
 
More
Does anyone know why Samsung would limit the charge current?
20th May 2011, 10:45 PM |#8  
Member
Thanks Meter: 6
 
More
Quote:
Originally Posted by theinstagator

Does anyone know why Samsung would limit the charge current?

Speculation is that its a heat related problem. Don't want to pull a Sony and have the batteries explode on people... (but again, that's speculation)
20th May 2011, 11:43 PM |#9  
Member
Thanks Meter: 8
 
More
Quote:
Originally Posted by Murfle

Speculation is that its a heat related problem. Don't want to pull a Sony and have the batteries explode on people... (but again, that's speculation)

I also heard that a smaller charging current extends the Li-ion battery's lifetime, even though I'd prefer quicker charging as the battery can be replaced with ease.
21st May 2011, 02:11 AM |#10  
CEPi's Avatar
Senior Member
Thanks Meter: 16
 
More
I second that. I tried it today with a 1A car charger (USB cig. plug) can't say it made a difference on speed of charge compared to wall one.
Post Reply Subscribe to Thread

Tags
charge, charger, charging, current, power
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes