[Galaxy S II Q&A, Help & Troubleshooting] Formhault:
Hello, guys. I know this post is awfully long, but please, bear with me :D

I am fairly new to Sammy, as I just got the S2 (I9100, not some other variant... it's the very original) three days ago. I rooted it, flashed CWM, and already tried a few ROMs. I'm sticking to MIUIv4 (WIUI, actually) for the moment, as I loved having MIUI on my previous devices.

There's just one thing that makes me wanna throw rocks at this phone... and that's not the Super AMOLED+ screen that has stains / ghosting effect... it's the CHARGER.

I believe the charger I'm using is original - it was in the package, so... it can't be a copy, lol. It says it can output 700mA at 5V, which is pretty standard... but it seems like it just doesn't do its job!!!

I've had three HTC devices before, and the HTC charger is just a brick that you plug into the socket, and then plug a USB cable in it (just like Motorola's and Apple's recently). It outputs 1A at 5V.

The Motorola ATRIX I previously owned had a charger that was outputting 850mA at 5.1V. Charging that 1900 mAh beast battery would take just a little over 3 hours!

I no longer own the ATRIX (sold it to get the S2, actually), but I did borrow a HTC charger (with a HTC USB cable) to see if I could charge my S2 faster. Nopes. The charger barely gave the S2 0.5 amps... which is normal, since I hear two pins must be connected in order for the Samsung phone to draw maximum power.

My Galaxy S2 is charging painfully slow with this original charger. I installed Battery Monitor Widget and let it log the battery charging overnight - the log file is attached below this post.

At the very first line of that text file, you can see the charging began. I let the phone turned on, with the screen off, to charge overnight. Wi-Fi, Mobile Data, BT, GPS, Auto-sync was off. It was just in auto 2G/3G mode. That hardly matters!

It looks like the phone is drawing 641mA constantly. It doesn't top 700mA, but that's okay - neither did the HTC phones reach more than 900mA, when the charger was able of 1A output.

It took the SGS2 exactly two hours and 50 minutes to fully charge. Given the fact that the charger outputs 700mA, and the battery is 1650mA, I'd say that's right. A 1900mAh battery was completely charged in 3 hours and something, with a 850mA output charger.

Still, that's painfully slow. I had the HTC EVO 3D, which has a 1730mAh battery. Charging that (@1A) would take little over two and a half hours. I could even browse the web via Wi-Fi or do something else on the phone and the battery would still be completely charged in less than three hours (unless I play a game on 3G with max brightness on, of course).

Also, when the battery was at 1% at lunchtime, I plugged in the charger. I continued to send text messages and browse the web via Wi-Fi (screen brightness was on minimum). The battery level did not rise from 1% even after 5 minutes! You can see that in the battery log. Yes, the phone's battery was almost dead in less than three hours.

Oh, also, the first day I got the phone, after I finished rooting and flashing MIUI and everything... I was playing Dark Legends, over Wi-Fi (screen was at lowest, again). Battery got down to 6%, I plug it into the charger. Ten minutes later, battery was down to 2% ! ! ! So, the charger cannot keep up !

I did my homeworks and did a "bit" of Google searching... it turns out the charger is just as it is. But this is just ridiculous.

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I remember seeing something on Twitter several months ago... an article regarding an app that would let you adjust how much power the Galaxy S2 can draw from the charger it's connected to, simply by dragging around a slider. I'm not wrong, I DID see such an article - I just can't find it anymore! :(

Anyone... any suggestions, please?

Also, please note that I am in Europe, Romania, so I can't just go to a shop and find the most awesome charger that outputs 2A for $5 like you guys can (there, in the US)... It's not really at hand for me, lol.